| 20.9.2008 |
EN |
Official Journal of the European Union |
L 253/1 |
| (1) |
Commission Directive 96/77/EC of 2 December 1996 laying down specific purity criteria on food additives other than colours and sweeteners(2)has been substantially amended several times(3). In the interests of clarity and rationality the said Directive should be codified. |
| (2) |
It is necessary to establish purity criteria for all additives other than colours and sweeteners mentioned in European Parliament and Council Directive 95/2/EC of 20 February 1995 on food additives other than colours and sweeteners(4). |
| (3) |
It is necessary to take into account the specifications and analytical techniques for additives as set out in theCodex Alimentariusas drafted by the Joint FAO/WHO Expert Committee on Food Additives (JECFA). |
| (4) |
Food additives prepared by production methods or starting materials significantly different from those evaluated by the Scientific Committee for Food or different from those mentioned in this Directive should be submitted for safety evaluation by the European Food Safety Authority with emphasis on the purity criteria. |
| (5) |
The measures provided for in this Directive are in accordance with the opinion of the Standing Committee on the Food Chain and Animal Health. |
| (6) |
This Directive should be without prejudice to the obligations of the Member States relating to the time-limits for transposition into national law of the Directives set out in Annex II, part B, |
| Definition |
|
| Chemical name |
Sorbic acid |
| Trans, trans-2,4-hexadienoic acid |
| Einecs |
203-768-7 |
| Chemical formula |
C6H8O2 |
| Molecular weight |
112,12 |
| Assay |
Content not less than 99 % on the anhydrous basis |
| Description |
Colourless needles or white free flowing powder, having a slight characteristic odour and showing no change in colour after heating for 90 minutes at 105oC |
| Identification |
|
| A.Melting range |
A. |
Melting range |
Between 133oC and 135oC, after vacuum drying for four hours in a sulphuric acid desiccator |
| A. |
Melting range |
| B.Spectrometry |
B. |
Spectrometry |
An isopropanol solution (1 in 4 000 000 ) shows absorbance maximum at 254 ± 2 nm |
| B. |
Spectrometry |
| C.Positive test for double bonds |
C. |
Positive test for double bonds |
|
| C. |
Positive test for double bonds |
| D.Sublimation point |
D. |
Sublimation point |
80oC |
| D. |
Sublimation point |
| Purity |
|
| Water content |
Not more than 0,5 % (Karl Fischer method) |
| Sulphated ash |
Not more than 0,2 % |
| Aldehydes |
Not more than 0,1 % (as formaldehyde) |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Heavy metals (as Pb) |
Not more than 10 mg/kg |
| C. |
Positive test for double bonds |
| Definition |
|
| Chemical name |
Potassium sorbate |
| Potassium (E, E)-2,4-hexadienoate |
| Potassium salt of trans, trans 2,4-hexadienoic acid |
| Einecs |
246-376-1 |
| Chemical formula |
C6H7O2K |
| Molecular weight |
150,22 |
| Assay |
Content not less than 99 % on the dried basis |
| Description |
White crystalline powder showing no change in colour after heating for 90 minutes at 105oC |
| Identification |
|
| A.Melting range of sorbic acid isolated by acidification and not recrystallised 133oC to 135oC after vacuum drying in a sulphuric acid desiccator |
A. |
Melting range of sorbic acid isolated by acidification and not recrystallised 133oC to 135oC after vacuum drying in a sulphuric acid desiccator |
|
| A. |
Melting range of sorbic acid isolated by acidification and not recrystallised 133oC to 135oC after vacuum drying in a sulphuric acid desiccator |
| B.Positive tests for potassium and for double bonds |
B. |
Positive tests for potassium and for double bonds |
|
| B. |
Positive tests for potassium and for double bonds |
| Purity |
|
| Loss on drying |
Not more than 1,0 % (105oC, 3h) |
| Acidity or alkalinity |
Not more than about 1,0 % (as sorbic acid or K2CO3) |
| Aldehydes |
Not more than 0,1 %, calculated as formaldehyde |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Heavy metals (as Pb) |
Not more than 10 mg/kg |
| A. |
Melting range of sorbic acid isolated by acidification and not recrystallised 133oC to 135oC after vacuum drying in a sulphuric acid desiccator |
| B. |
Positive tests for potassium and for double bonds |
| Definition |
|
| Chemical name |
Calcium sorbate |
| Calcium salts of trans, trans-2,4-hexadienoic acid |
| Einecs |
231-321-6 |
| Chemical formula |
C12H14O4Ca |
| Molecular weight |
262,32 |
| Assay |
Content not less than 98 % on the dried basis |
| Description |
Fine white crystalline powder not showing any change in colour after heating at 105oC for 90 minutes |
| Identification |
|
| A.Melting range of sorbic acid isolated by acidification and not recrystallised 133oC to 135oC after vacuum drying in a sulphuric acid desiccator |
A. |
Melting range of sorbic acid isolated by acidification and not recrystallised 133oC to 135oC after vacuum drying in a sulphuric acid desiccator |
|
| A. |
Melting range of sorbic acid isolated by acidification and not recrystallised 133oC to 135oC after vacuum drying in a sulphuric acid desiccator |
| B.Positive tests for calcium and for double bonds |
B. |
Positive tests for calcium and for double bonds |
|
| B. |
Positive tests for calcium and for double bonds |
| Purity |
|
| Loss on drying |
Not more than 2,0 %, determined by vacuum drying for four hours in a sulphuric acid desiccator |
| Aldehydes |
Not more than 0,1 % (as formaldehyde) |
| Fluoride |
Not more than 10 mg/kg |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Heavy metals (as Pb) |
Not more than 10 mg/kg |
| A. |
Melting range of sorbic acid isolated by acidification and not recrystallised 133oC to 135oC after vacuum drying in a sulphuric acid desiccator |
| B. |
Positive tests for calcium and for double bonds |
| Definition |
|
| Chemical name |
Benzoic acid |
| Benzenecarboxylic acid |
| Phenylcarboxylic acid |
| Einecs |
200-618-2 |
| Chemical formula |
C7H6O2 |
| Molecular weight |
122,12 |
| Assay |
Content not less than 99,5 % on the anhydrous basis |
| Description |
White crystalline powder |
| Identification |
|
| A.Melting range |
A. |
Melting range |
121,5oC to 123,5oC |
| A. |
Melting range |
| B.Positive sublimation test and test for benzoate |
B. |
Positive sublimation test and test for benzoate |
|
| B. |
Positive sublimation test and test for benzoate |
| Purity |
|
| Loss on drying |
Not more than 0,5 % after drying for three hours over sulphuric acid |
| pH |
About 4 (solution in water) |
| Sulphated ash |
Not more than 0,05 % |
| Chlorinated organic compounds |
Not more than 0,07 % expressed as chloride corresponding to 0,3 % expressed as monochlorobenzoic acid |
| Readily oxidisable substances |
Add 1,5 ml of sulphuric acid to 100 ml of water, heat to boiling point and add 0,1 N KMnO4in drops, until the pink colour persists for 30 seconds. Dissolve 1 g of the sample, weighed to the nearest mg, in the heated solution, and titrate with 0,1 N KMnO4to a pink colour that persists for 15 seconds. Not more than 0,5 ml should be required |
| Readily carbonisable substances |
A cold solution of 0,5 g of benzoic acid in 5 ml of 94,5 to 95,5 % sulphuric acid must not show a stronger colouring than that of a reference liquid containing 0,2 ml of cobalt chloride TSC(2), 0,3 ml of ferric chloride TSC(3), 0,1 ml of copper sulphate TSC(4)and 4,4 ml of water |
| Polycyclic acids |
On fractional acidification of a neutralised solution of benzoic acid, the first precipitate must not have a different melting point from that of the benzoic acid |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Heavy metals (as Pb) |
Not more than 10 mg/kg |
|
| B. |
Positive sublimation test and test for benzoate |
| Definition |
|
| Chemical name |
Sodium benzoate |
| Sodium salt of benzenecarboxylic acid |
| Sodium salt of phenylcarboxylic acid |
| Einecs |
208-534-8 |
| Chemical formula |
C7H5O2Na |
| Molecular weight |
144,11 |
| Assay |
Not less than 99 % of C7H5O2Na, after drying at 105oC for four hours |
| Description |
A white, almost odourless, crystalline powder or granules |
| Identification |
|
| A.Solubility |
A. |
Solubility |
Freely soluble in water, sparingly soluble in ethanol |
| A. |
Solubility |
| B.Melting range for benzoic acid |
B. |
Melting range for benzoic acid |
Melting range of benzoic acid isolated by acidification and not recrystallised 121,5oC to 123,5oC, after drying in a sulphuric acid desiccator |
| B. |
Melting range for benzoic acid |
| C.Positive tests for benzoate and for sodium |
C. |
Positive tests for benzoate and for sodium |
|
| C. |
Positive tests for benzoate and for sodium |
| Purity |
|
| Loss on drying |
Not more than 1,5 % after drying at 105oC for four hours |
| Readily oxidisable substances |
Add 1,5 ml of sulphuric acid to 100 ml of water, heat to boiling point and add 0,1 N KMnO4in drops, until the pink colour persists for 30 seconds. Dissolve 1 g of the sample, weighed to the nearest mg, in the heated solution, and titrate with 0,1 N KMnO4to a pink colour that persists for 15 seconds. Not more than 0,5 ml should be required |
| Polycyclic acids |
On fractional acidification of a (neutralised) solution of sodium benzoate, the first precipitate must not have a different melting range from that of benzoic acid |
| Chlorinated organic compounds |
Not more than 0,06 % expressed as chloride, corresponding to 0,25 % expressed as monochlorobenzoic acid |
| Degree of acidity or alkalinity |
Neutralisation of 1 g of sodium benzoate, in the presence of phenolphthalein, must not require more than 0,25 ml of 0,1 N NaOH or 0,1 N HCl |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Heavy metals (as Pb) |
Not more than 10 mg/kg |
| B. |
Melting range for benzoic acid |
| C. |
Positive tests for benzoate and for sodium |
| Definition |
|
| Chemical name |
Potassium benzoate |
| Potassium salt of benzenecarboxylic acid |
| Potassium salt of phenylcarboxylic acid |
| Einecs |
209-481-3 |
| Chemical formula |
C7H5KO2·3H2O |
| Molecular weight |
214,27 |
| Assay |
Content not less than 99 % C7H5KO2after drying at 105oC to constant weight |
| Description |
White crystalline powder |
| Identification |
|
| A.Melting range of benzoic acid isolated by acidification and not recrystallised 121,5oC to 123,5oC, after vacuum drying in a sulphuric acid desiccator |
A. |
Melting range of benzoic acid isolated by acidification and not recrystallised 121,5oC to 123,5oC, after vacuum drying in a sulphuric acid desiccator |
|
| A. |
Melting range of benzoic acid isolated by acidification and not recrystallised 121,5oC to 123,5oC, after vacuum drying in a sulphuric acid desiccator |
| B.Positive tests for benzoate and for potassium |
B. |
Positive tests for benzoate and for potassium |
|
| B. |
Positive tests for benzoate and for potassium |
| Purity |
|
| Loss on drying |
Not more than 26,5 %, determined by drying at 105oC |
| Chlorinated organic compounds |
Not more than 0,06 % expressed as chloride, corresponding to 0,25 % expressed as monochlorobenzoic acid |
| Readily oxidisable substances |
Add 1,5 ml of sulphuric acid to 100 ml of water, heat to boiling point and add 0,1 N KMnO4in drops, until the pink colour persists for 30 seconds. Dissolve 1 g of the sample, weighed to the nearest mg, in the heated solution, and titrate with 0,1 N KMnO4to a pink colour that persists for 15 seconds. Not more than 0,5 ml should be required |
| Readily carbonisable substances |
A cold solution of 0,5 g of benzoic acid in 5 ml 94,5 to 95,5 % sulphuric acid must not show a stronger colouring than that of a reference liquid containing 0,2 ml of cobalt chloride TSC, 0,3 ml of ferric chloride TSC, 0,1 ml of copper sulphate TSC and 4,4 ml of water |
| Polycyclic acids |
On fractional acidification of a (neutralised) solution of potassium benzoate, the first precipitate must not have a different melting range from that of benzoic acid |
| Degree of acidity or alkalinity |
Neutralisation of 1 g of potassium benzoate, in the presence of phenolphthalein, must not require more than 0,25 ml of 0,1 N NaOH or 0,1 N HCl |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Heavy metals (as Pb) |
Not more than 10 mg/kg |
| A. |
Melting range of benzoic acid isolated by acidification and not recrystallised 121,5oC to 123,5oC, after vacuum drying in a sulphuric acid desiccator |
| B. |
Positive tests for benzoate and for potassium |
| Synonyms |
Monocalcium benzoate |
| Definition |
|
| Chemical name |
Calcium benzoate |
| Calcium dibenzoate |
| Einecs |
218-235-4 |
| Chemical formula |
Anhydrous: |
C14H10O4Ca |
| Monohydrate: |
C14H10O4Ca· H2O |
| Trihydrate: |
C14H10O4Ca· 3H2O |
| Molecular weight |
Anhydrous: |
282,31 |
| Monohydrate: |
300,32 |
| Trihydrate: |
336,36 |
| Assay |
Content not less than 99 % after drying at 105oC |
| Description |
White or colourless crystals, or white powder |
| Identification |
|
| A.Melting range of benzoic acid isolated by acidification and not recrystallised 121,5oC to 123,5oC, after vacuum drying in a sulphuric acid desiccator |
A. |
Melting range of benzoic acid isolated by acidification and not recrystallised 121,5oC to 123,5oC, after vacuum drying in a sulphuric acid desiccator |
|
| A. |
Melting range of benzoic acid isolated by acidification and not recrystallised 121,5oC to 123,5oC, after vacuum drying in a sulphuric acid desiccator |
| B.Positive tests for benzoate and for calcium |
B. |
Positive tests for benzoate and for calcium |
|
| B. |
Positive tests for benzoate and for calcium |
| Purity |
|
| Loss on drying |
Not more than 17,5 % determined by drying at 105oC to constant weight |
| Water insoluble matter |
Not more than 0,3 % |
| Chlorinated organic compounds |
Not more than 0,06 % expressed as chloride, corresponding to 0,25 % expressed as monochlorobenzoic acids |
| Readily oxidisable substances |
Add 1,5 ml of sulphuric acid to 100 ml of water, heat to boiling point and add 0,1 N KMnO4in drops, until the pink colour persists for 30 seconds. Dissolve 1 g of the sample, weighed to the nearest mg, in the heated solution, and titrate with 0,1 N KMnO4to a pink colour that persists for 15 seconds. Not more than 0,5 ml should be required |
| Readily carbonisable substances |
Cold solution of 0,5 g of benzoic acid in 5 ml of 94,5 to 95,5 % sulphuric acid must not show a stronger colouring than that of a reference liquid containing 0,2 ml of cobalt chloride TSC, 0,3 ml of ferric chloride TSC, 0,1 ml of copper sulphate TSC and 4,4 ml of water |
| Polycyclic acids |
On fractional acidification of a (neutralised) solution of calcium benzoate, the first precipitate must not be a different melting range from that of benzoic acid |
| Degree of acidity or alkalinity |
Neutralisation of 1 g of calcium benzoate, in the presence of phenolphthalein, must not require more than 0,25 ml of 0,1 N NaOH or 0,1 N HCl |
| Fluoride |
Not more than 10 mg/kg |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Heavy metals (as Pb) |
Not more than 10 mg/kg |
| A. |
Melting range of benzoic acid isolated by acidification and not recrystallised 121,5oC to 123,5oC, after vacuum drying in a sulphuric acid desiccator |
| B. |
Positive tests for benzoate and for calcium |
| Synonyms |
Ethylparaben |
| Ethylp-oxybenzoate |
| Definition |
|
| Chemical name |
Ethyl-p-hydroxybenzoate |
| Ethyl ester ofp-hydroxybenzoic acid |
| Einecs |
204-399-4 |
| Chemical formula |
C9H10O3 |
| Molecular weight |
166,8 |
| Assay |
Content not less than 99,5 % after drying for two hours at 80oC |
| Description |
Almost odourless, small, colourless crystals or a white, crystalline powder |
| Identification |
|
| A.Melting range |
A. |
Melting range |
115oC to 118oC |
| A. |
Melting range |
| B.Positive test forp-hydroxybenzoate |
B. |
Positive test forp-hydroxybenzoate |
Melting range ofp-hydroxybenzoic acid isolated by acidification and not recrystallised: 213oC to 217oC, after vacuum drying in a sulphuric acid desiccator |
| B. |
Positive test forp-hydroxybenzoate |
| C.Positive test for alcohol |
C. |
Positive test for alcohol |
|
| C. |
Positive test for alcohol |
| Purity |
|
| Loss on drying |
Not more than 0,5 % after drying for two hours at 80oC |
| Sulphated ash |
Not more than 0,05 % |
| p-Hydroxybenzoic acid and salicylic acid |
Not more than 0,35 % expressed asp-hydroxybenzoic acid |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Heavy metals (as Pb) |
Not more than 10 mg/kg |
| B. |
Positive test forp-hydroxybenzoate |
| C. |
Positive test for alcohol |
| Definition |
|
| Chemical name |
Sodium ethylp-hydroxybenzoate |
| Sodium compound of the ethyl ester ofp-hydroxybenzoic acid |
| Einecs |
252-487-6 |
| Chemical formula |
C9H9O3Na |
| Molecular weight |
188,8 |
| Assay |
Content of ethylester ofp-hydroxybenzoic acid not less than 83 % on the anhydrous basis |
| Description |
White, crystalline hygroscopic powder |
| Identification |
|
| A.Melting range |
A. |
Melting range |
115oC to 118oC, after vacuum drying in a sulphuric acid desiccator |
| A. |
Melting range |
| B.Positive test forp-hydroxybenzoate |
B. |
Positive test forp-hydroxybenzoate |
Melting range ofp-hydroxybenzoic acid derived from the sample is 213oC to 217oC |
| B. |
Positive test forp-hydroxybenzoate |
| C.Positive test for sodium |
C. |
Positive test for sodium |
|
| C. |
Positive test for sodium |
| D.pH of a 0,1 % aqueous solution must be between 9,9 and 10,3 |
D. |
pH of a 0,1 % aqueous solution must be between 9,9 and 10,3 |
|
| D. |
pH of a 0,1 % aqueous solution must be between 9,9 and 10,3 |
| Purity |
|
| Loss on drying |
Not more than 5 %, determined by vacuum drying in a sulphuric acid desiccator |
| Sulphated ash |
37 to 39 % |
| p-Hydroxybenzoic acid and salicylic acid |
Not more than 0,35 % expressed asp-hydroxybenzoic acid |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Heavy metals (as Pb) |
Not more than 10 mg/kg |
| B. |
Positive test forp-hydroxybenzoate |
| C. |
Positive test for sodium |
| D. |
pH of a 0,1 % aqueous solution must be between 9,9 and 10,3 |
| Synonyms |
Methylparaben |
| Methyl-p-oxybenzoate |
| Definition |
|
| Chemical name |
Methylp-hydroxybenzoate |
| Methyl ester ofp-hydroxybenzoic acid |
| Einecs |
243-171-5 |
| Chemical formula |
C8H8O3 |
| Molecular weight |
152,15 |
| Assay |
Content not less than 99 % after drying for two hours at 80oC |
| Description |
Almost odourless, small colourless crystals or white crystalline powder |
| Identification |
|
| A.Melting range |
A. |
Melting range |
125oC to 128oC |
| A. |
Melting range |
| B.Positive test forp-hydroxybenzoate |
B. |
Positive test forp-hydroxybenzoate |
Melting range ofp-hydroxybenzoic acid derived from the sample is 213oC to 217oC after drying for two hours at 80oC |
| B. |
Positive test forp-hydroxybenzoate |
| Purity |
|
| Loss on drying |
Not more than 0,5 %, after drying for two hours at 80oC |
| Sulphated ash |
Not more than 0,05 % |
| p-Hydroxybenzoic acid and salicylic acid |
Not more than 0,35 % expressed asp-hydroxybenzoic acid |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Heavy metals (as Pb) |
Not more than 10 mg/kg |
| B. |
Positive test forp-hydroxybenzoate |
| Definition |
|
| Chemical name |
Sodium methylp-hydroxybenzoate |
| Sodium compound of the methylester ofp-hydroxybenzoic acid |
| Chemical formula |
C8H7O3Na |
| Molecular weight |
174,15 |
| Assay |
Content not less than 99,5 % on the anhydrous basis |
| Description |
White, hygroscopic powder |
| Identification |
|
| A.The white precipitate formed by acidifying with hydrochloric acid a 10 % (w/v) aqueous solution of the sodium derivative of methylp-hydroxybenzoate (using litmus paper as indicator) shall, when washed with water and dried at 80oC for two hours, have a melting range of 125oC to 128oC |
A. |
The white precipitate formed by acidifying with hydrochloric acid a 10 % (w/v) aqueous solution of the sodium derivative of methylp-hydroxybenzoate (using litmus paper as indicator) shall, when washed with water and dried at 80oC for two hours, have a melting range of 125oC to 128oC |
|
| A. |
The white precipitate formed by acidifying with hydrochloric acid a 10 % (w/v) aqueous solution of the sodium derivative of methylp-hydroxybenzoate (using litmus paper as indicator) shall, when washed with water and dried at 80oC for two hours, have a melting range of 125oC to 128oC |
| B.Positive test for sodium |
B. |
Positive test for sodium |
|
| B. |
Positive test for sodium |
| C.pH of a 0,1 % solution in carbon dioxide free water, not less than 9,7 and not more than 10,3 |
C. |
pH of a 0,1 % solution in carbon dioxide free water, not less than 9,7 and not more than 10,3 |
|
| C. |
pH of a 0,1 % solution in carbon dioxide free water, not less than 9,7 and not more than 10,3 |
| Purity |
|
| Water content |
Not more than 5 % (Karl Fischer method) |
| Sulphated ash |
40 % to 44,5 % on the anhydrous basis |
| p-Hydroxybenzoic acid and salicylic acid |
Not more than 0,35 % expressed asp-hydroxybenzoic acid |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Heavy metals (as Pb) |
Not more than 10 mg/kg |
| A. |
The white precipitate formed by acidifying with hydrochloric acid a 10 % (w/v) aqueous solution of the sodium derivative of methylp-hydroxybenzoate (using litmus paper as indicator) shall, when washed with water and dried at 80oC for two hours, have a melting range of 125oC to 128oC |
| B. |
Positive test for sodium |
| C. |
pH of a 0,1 % solution in carbon dioxide free water, not less than 9,7 and not more than 10,3 |
| Definition |
|
| Chemical name |
Sulphur dioxide |
| Sulphurous acid anhydride |
| Einecs |
231-195-2 |
| Chemical formula |
SO2 |
| Molecular weight |
64,07 |
| Assay |
Content not less than 99 % |
| Description |
Colourless, non-flammable gas with strong pungent suffocating odour |
| Identification |
|
| A.Positive test for sulphurous substances |
A. |
Positive test for sulphurous substances |
|
| A. |
Positive test for sulphurous substances |
| Purity |
|
| Water content |
Not more than 0,05 % |
| Non-volatile residue |
Not more than 0,01 % |
| Sulphur trioxide |
Not more than 0,1 % |
| Selenium |
Not more than 10 mg/kg |
| Other gases not normally present in the air |
No trace |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Heavy metals (as Pb) |
Not more than 10 mg/kg |
| A. |
Positive test for sulphurous substances |
| Definition |
|
| Chemical name |
Sodium sulphite (anhydrous or heptahydrate) |
| Einecs |
231-821-4 |
| Chemical formula |
Anhydrous: |
Na2SO3 |
| Heptahydrate: |
Na2SO37H2O |
| Molecular weight |
Anhydrous: |
126,04 |
| Heptahydrate: |
252,16 |
| Assay |
Anhydrous: |
Not less than 95 % of Na2SO3and not less than 48 % of SO2 |
| Heptahydrate: |
Not less than 48 % of Na2SO3and not less than 24 % of SO2 |
| Description |
White crystalline powder or colourless crystals |
| Identification |
|
| A.Positive tests for sulphite and for sodium |
A. |
Positive tests for sulphite and for sodium |
|
| A. |
Positive tests for sulphite and for sodium |
| B.pH of a 10 % solution (anhydrous) or a 20 % solution (heptahydrate) between 8,5 and 11,5 |
B. |
pH of a 10 % solution (anhydrous) or a 20 % solution (heptahydrate) between 8,5 and 11,5 |
|
| B. |
pH of a 10 % solution (anhydrous) or a 20 % solution (heptahydrate) between 8,5 and 11,5 |
| Purity |
|
| Thiosulphate |
Not more than 0,1 % based on the SO2content |
| Iron |
Not more than 50 mg/kg based on the SO2content |
| Selenium |
Not more than 10 mg/kg based on the SO2content |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Heavy metals (as Pb) |
Not more than 10 mg/kg |
| A. |
Positive tests for sulphite and for sodium |
| B. |
pH of a 10 % solution (anhydrous) or a 20 % solution (heptahydrate) between 8,5 and 11,5 |
| Definition |
|
| Chemical name |
Sodium bisulphite |
| Sodium hydrogen sulphite |
| Einecs |
231-921-4 |
| Chemical formula |
NaHSO3in aqueous solution |
| Molecular weight |
104,06 |
| Assay |
Content not less than 32 % w/w NaHSO3 |
| Description |
A clear, colourless to yellow solution |
| Identification |
|
| A.Positive tests for sulphite and for sodium |
A. |
Positive tests for sulphite and for sodium |
|
| A. |
Positive tests for sulphite and for sodium |
| B.pH of a 10 % aqueous solution between 2,5 and 5,5 |
B. |
pH of a 10 % aqueous solution between 2,5 and 5,5 |
|
| B. |
pH of a 10 % aqueous solution between 2,5 and 5,5 |
| Purity |
|
| Iron |
Not more than 50 mg/kg of Na2SO3based on the SO2content |
| Selenium |
Not more than 10 mg/kg based on the SO2content |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Heavy metals (as Pb) |
Not more than 10 mg/kg |
| A. |
Positive tests for sulphite and for sodium |
| B. |
pH of a 10 % aqueous solution between 2,5 and 5,5 |
| Synonyms |
Pyrosulphite |
| Sodium pyrosulphite |
| Definition |
|
| Chemical name |
Sodium disulphite |
| Disodium pentaoxodisulphate |
| Einecs |
231-673-0 |
| Chemical formula |
Na2S2O5 |
| Molecular weight |
190,11 |
| Assay |
Content not less than 95 % Na2S2O5and not less than 64 % of SO2 |
| Description |
White crystals or crystalline powder |
| Identification |
|
| A.Positive tests for sulphite and for sodium |
A. |
Positive tests for sulphite and for sodium |
|
| A. |
Positive tests for sulphite and for sodium |
| B.pH of a 10 % aqueous solution between 4,0 and 5,5 |
B. |
pH of a 10 % aqueous solution between 4,0 and 5,5 |
|
| B. |
pH of a 10 % aqueous solution between 4,0 and 5,5 |
| Purity |
|
| Thiosulphate |
Not more than 0,1 % based on the SO2content |
| Iron |
Not more than 50 mg/kg based on the SO2content |
| Selenium |
Not more than 10 mg/kg based on the SO2content |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Heavy metals (as Pb) |
Not more than 10 mg/kg |
| A. |
Positive tests for sulphite and for sodium |
| B. |
pH of a 10 % aqueous solution between 4,0 and 5,5 |
| Synonyms |
Potassium pyrosulphite |
| Definition |
|
| Chemical name |
Potassium disulphite |
| Potassium pentaoxo disulphate |
| Einecs |
240-795-3 |
| Chemical formula |
K2S2O5 |
| Molecular weight |
222,33 |
| Assay |
Content not less than 90 % of K2S2O5and not less than 51,8 % of SO2, the remainder being composed almost entirely of potassium sulphate |
| Description |
Colourless crystals or white crystalline powder |
| Identification |
|
| A.Positive tests for sulphite and for potassium |
A. |
Positive tests for sulphite and for potassium |
|
| A. |
Positive tests for sulphite and for potassium |
| Purity |
|
| Thiosulphate |
Not more than 0,1 % based on the SO2content |
| Iron |
Not more than 50 mg/kg based on the SO2content |
| Selenium |
Not more than 10 mg/kg based on the SO2content |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Heavy metals (as Pb) |
Not more than 10 mg/kg |
| A. |
Positive tests for sulphite and for potassium |
| Definition |
|
| Chemical name |
Calcium sulphite |
| Einecs |
218-235-4 |
| Chemical formula |
CaSO3·2H2O |
| Molecular weight |
156,17 |
| Assay |
Content not less than 95 % of CaSO3·2H2O and not less than 39 % of SO2 |
| Description |
White crystals or white crystalline powder |
| Identification |
|
| A.Positive tests for sulphite and for calcium |
A. |
Positive tests for sulphite and for calcium |
|
| A. |
Positive tests for sulphite and for calcium |
| Purity |
|
| Iron |
Not more than 50 mg/kg based on the SO2content |
| Selenium |
Not more than 10 mg/kg based on the SO2content |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Heavy metals (as Pb) |
Not more than 10 mg/kg |
| A. |
Positive tests for sulphite and for calcium |
| Definition |
|
| Chemical name |
Calcium bisulphite |
| Calcium hydrogen sulphite |
| Einecs |
237-423-7 |
| Chemical formula |
Ca(HSO3)2 |
| Molecular weight |
202,22 |
| Assay |
6 to 8 % (w/v) of sulphur dioxide and 2,5 to 3,5 % (w/v) of calcium dioxide corresponding to 10 to 14 % (w/v) of calcium bisulphite [Ca(HSO3)2] |
| Description |
Clear greenish-yellow aqueous solution having a distinct odour of sulphur dioxide |
| Identification |
|
| A.Positive tests for sulphite and for calcium |
A. |
Positive tests for sulphite and for calcium |
|
| A. |
Positive tests for sulphite and for calcium |
| Purity |
|
| Iron |
Not more than 50 mg/kg based on the SO2content |
| Selenium |
Not more than 10 mg/kg based on the SO2content |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Heavy metals (as Pb) |
Not more than 10 mg/kg |
| A. |
Positive tests for sulphite and for calcium |
| Definition |
|
| Chemical name |
Potassium bisulphite |
| Potassium hydrogen sulphite |
| Einecs |
231-870-1 |
| Chemical formula |
KHSO3in aqueous solution |
| Molecular weight |
120,17 |
| Assay |
Content not less than 280 g KHSO3per litre (or 150 g SO2per litre) |
| Description |
Clear colourless aqueous solution |
| Identification |
|
| A.Positive tests for sulphite and for potassium |
A. |
Positive tests for sulphite and for potassium |
|
| A. |
Positive tests for sulphite and for potassium |
| Purity |
|
| Iron |
Not more than 50 mg/kg based on the SO2content |
| Selenium |
Not more than 10 mg/kg based on the SO2content |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Heavy metals (as Pb) |
Not more than 10 mg/kg |
| A. |
Positive tests for sulphite and for potassium |
| Synonyms |
Diphenyl |
| Definition |
|
| Chemical name |
1,1′-biphenyl |
| Phenylbenzene |
| Einecs |
202-163-5 |
| Chemical formula |
C12H10 |
| Molecular weight |
154,20 |
| Assay |
Content not less than 99,8 % |
| Description |
White or pale yellow to amber crystalline solid having a characteristic odour |
| Identification |
|
| A.Melting range |
A. |
Melting range |
68,5oC to 70,5oC |
| A. |
Melting range |
| B.Distillation range |
B. |
Distillation range |
It distils completely within a 2,5oC range between 252,5oC and 257,5oC |
| B. |
Distillation range |
| Purity |
|
| Benzene |
Not more than 10 mg/kg |
| Aromatic amines |
Not more than 2 mg/kg (as aniline) |
| Phenol derivatives |
Not more than 5 mg/kg (as phenol) |
| Readily carbonisable substances |
Cold solution of 0,5 g of biphenyl in 5 ml of 94,5 to 95,5 % sulphuric acid must not show a stronger colouring than that of a reference liquid containing 0,2 ml of cobalt chloride TSC, 0,3 ml of ferric chloride TSC, 0,1 ml of copper sulphate TSC and 4,4 ml of water |
| Terphenyl and higher polyphenyl derivatives |
Not more than 0,2 % |
| Polycyclic aromatic hydrocarbons |
Absent |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Heavy metals (as Pb) |
Not more than 10 mg/kg |
| Synonyms |
Orthoxenol |
| Definition |
|
| Chemical name |
(1,1'-Biphenyl)-2-ol |
| 2-Hydroxydiphenyl |
| o-Hydroxydiphenyl |
| Einecs |
201-993-5 |
| Chemical formula |
C12H10O |
| Molecular weight |
170,20 |
| Assay |
Content not less than 99 % |
| Description |
White or slightly yellowish crystalline powder |
| Identification |
|
| A.Melting range |
A. |
Melting range |
56oC to 58oC |
| A. |
Melting range |
| B.Positive test for phenolate |
B. |
Positive test for phenolate |
An ethanolic solution (1 g in 10 ml) produces a green colour on addition of 10 % ferric chloride solution |
| B. |
Positive test for phenolate |
| Purity |
|
| Sulphated ash |
Not more than 0,05 % |
| Diphenyl ether |
Not more than 0,3 % |
| p-Phenylphenol |
Not more than 0,1 % |
| 1-Naphthol |
Not more than 0,01 % |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Heavy metals (as Pb) |
Not more than 10 mg/kg |
| B. |
Positive test for phenolate |
| Synonyms |
Sodium orthophenylphenate |
| Sodium salt ofo-phenylphenol |
| Definition |
|
| Chemical name |
Sodium orthophenylphenol |
| Einecs |
205-055-6 |
| Chemical formula |
C12H9ONa· 4H2O |
| Molecular weight |
264,26 |
| Assay |
Content not less than 97 % of C12H9ONa· 4H2O |
| Description |
White or slightly yellowish crystalline powder |
| Identification |
|
| A.Positive tests for phenolate and for sodium |
A. |
Positive tests for phenolate and for sodium |
|
| A. |
Positive tests for phenolate and for sodium |
| B.Melting range of orthophenylphenol isolated by acidification and not recrystallised derived from the sample 56oC to 58oC after drying in a sulphuric acid desiccator |
B. |
Melting range of orthophenylphenol isolated by acidification and not recrystallised derived from the sample 56oC to 58oC after drying in a sulphuric acid desiccator |
|
| B. |
Melting range of orthophenylphenol isolated by acidification and not recrystallised derived from the sample 56oC to 58oC after drying in a sulphuric acid desiccator |
| C.pH of a 2 % aqueous solution must be between 11,1 and 11,8 |
C. |
pH of a 2 % aqueous solution must be between 11,1 and 11,8 |
|
| C. |
pH of a 2 % aqueous solution must be between 11,1 and 11,8 |
| Purity |
|
| Diphenylether |
Not more than 0,3 % |
| p-phenylphenol |
Not more than 0,1 % |
| 1-naphthol |
Not more than 0,01 % |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Heavy metals (as Pb) |
Not more than 10 mg/kg |
| A. |
Positive tests for phenolate and for sodium |
| B. |
Melting range of orthophenylphenol isolated by acidification and not recrystallised derived from the sample 56oC to 58oC after drying in a sulphuric acid desiccator |
| C. |
pH of a 2 % aqueous solution must be between 11,1 and 11,8 |
| Definition |
|
| Chemical name |
4-(2-benzimidazolyl)thiazole |
| 2-(4-thiazolyl)-1H-benzimidazole |
| Einecs |
205-725-8 |
| Chemical formula |
C10H7N3S |
| Molecular weight |
201,26 |
| Assay |
Content not less than 98 % on the anhydrous basis |
| Description |
White, or almost white, odourless powder |
| Identification |
|
| A.Melting range |
A. |
Melting range |
296oC to 303oC |
| A. |
Melting range |
| B.Spectrometry |
B. |
Spectrometry |
Absorption maxima in 0,1 N HCl (0,0005 % w/v) at 302 nm, 258 nm and 243 nm |
| B. |
Spectrometry |
| at 302 nm ± 2 nm: approximately 1 230 |
| at 258 nm ± 2 nm: approximately 200 |
| at 243 nm ± 2 nm: approximately 620 |
| Ratio of absorption 243 nm/302 nm = 0,47 to 0,53 |
| Ratio of absorption 258 nm/302 nm = 0,14 to 0,18 |
| Purity |
|
| Water content |
Not more than 0,5 % (Karl Fischer method) |
| Sulphated ash |
Not more than 0,2 % |
| Selenium |
Not more than 3 mg/kg |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Heavy metals (as Pb) |
Not more than 10 mg/kg |
| Definition |
Nisin consists of several closely related polypeptides produced by natural strains ofStreptococcus lactis, Lancefield group N |
| Einecs |
215-807-5 |
| Chemical formula |
C143H230N42O37S7 |
| Molecular weight |
3 354 ,12 |
| Assay |
Nisin concentrate contains not less than 900 units per mg in a mixture of non-fat milk solids and a minimum sodium chloride content of 50 % |
| Description |
White powder |
| Purity |
|
| Loss on drying |
Not more than 3 % when dried to constant weight at 102oC to 103oC |
| Arsenic |
Not more than 1 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Heavy metals (as Pb) |
Not more than 10 mg/kg |
| Synonyms |
Pimaricin |
| Definition |
Natamycin is a fungicide of the polyene macrolide group, and is produced by natural strains ofStreptomyces natalensisor ofStreptococcus lactis |
| Einecs |
231-683-5 |
| Chemical formula |
C33H47O13N |
| Molecular weight |
665,74 |
| Assay |
Content not less than 95 % on the anhydrous basis |
| Description |
White to creamy-white crystalline powder |
| Identification |
|
| A.Colour reactions |
A. |
Colour reactions |
On adding a few crystals of natamycin on a spot plate, to a drop of:—concentrated hydrochloric acid, a blue colour develops,—concentrated phosphoric acid, a green colour develops,which changes into pale red after a few minutes |
— |
concentrated hydrochloric acid, a blue colour develops, |
— |
concentrated phosphoric acid, a green colour develops, |
| A. |
Colour reactions |
| — |
concentrated hydrochloric acid, a blue colour develops, |
| — |
concentrated phosphoric acid, a green colour develops, |
| B.Spectrometry |
B. |
Spectrometry |
A 0,0005 % w/v solution in 1 % methanolic acetic acid solution has absorption maxima at about 290 nm, 303 nm and 318 nm, a shoulder at about 280 nm and exhibits minima at about 250 nm, 295,5 nm and 311 nm |
| B. |
Spectrometry |
| C.pH |
C. |
pH |
5,5 to 7,5 (1 % w/v solution in previously neutralised mixture of 20 parts dimethylformamide and 80 parts of water) |
| C. |
pH |
| D.Specific rotation |
D. |
Specific rotation |
[α]D20= + 250oto + 295o(a 1 % w/v solution in glacial acetic acid, at 20oC and calculated with reference to the dried material) |
| D. |
Specific rotation |
| Purity |
|
| Loss on drying |
Not more than 8 % (over P2O5, in vacuum at 60oC to constant weight) |
| Sulphated ash |
Not more than 0,5 % |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Heavy metals (as Pb) |
Not more than 10 mg/kg |
| Microbiological criteria: total viable count |
Not more than 100/g |
| — |
concentrated hydrochloric acid, a blue colour develops, |
| — |
concentrated phosphoric acid, a green colour develops, |
| Synonyms |
Hexamine |
| Methenamine |
| Definition |
|
| Chemical name |
1,3,5,7-Tetraazatricyclo [3.3.1.13,7]-decane, hexamethylenetetramine |
| Einecs |
202-905-8 |
| Chemical formula |
C6H12N4 |
| Molecular weight |
140,19 |
| Assay |
Content not less than 99 % on the anhydrous basis |
| Description |
Colourless or white crystalline powder |
| Identification |
|
| A.Positive tests for formaldehyde and for ammonia |
A. |
Positive tests for formaldehyde and for ammonia |
|
| A. |
Positive tests for formaldehyde and for ammonia |
| B.Sublimation point approximately 260oC |
B. |
Sublimation point approximately 260oC |
|
| B. |
Sublimation point approximately 260oC |
| Purity |
|
| Loss on drying |
Not more than 0,5 % after drying at 105oC in vacuum over P2O5for two hours |
| Sulphated ash |
Not more than 0,05 % |
| Sulphates |
Not more than 0,005 % expressed as SO4 |
| Chlorides |
Not more than 0,005 % expressed as Cl |
| Ammonium salts |
Not detectable |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Heavy metals (as Pb) |
Not more than 10 mg/kg |
| A. |
Positive tests for formaldehyde and for ammonia |
| B. |
Sublimation point approximately 260oC |
| Synonyms |
DMDC |
| Dimethyl pyrocarbonate |
| Definition |
|
| Chemical name |
Dimethyl dicarbonate |
| Pyrocarbonic acid dimethyl ester |
| Einecs |
224-859-8 |
| Chemical formula |
C4H6O5 |
| Molecular weight |
134,09 |
| Assay |
Content not less than 99,8 % |
| Description |
Colourless liquid, decomposes in aqueous solution. It is corrosive to skin and eyes and toxic by inhalation and ingestion |
| Identification |
|
| A.Decomposition |
A. |
Decomposition |
After dilution positive tests for CO2and methanol |
| A. |
Decomposition |
| B.Melting point |
B. |
Melting point |
17oC |
| B. |
Melting point |
| Boiling point |
172oC with decomposition |
| C.Density 20oC |
C. |
Density 20oC |
Approximately 1,25 g/cm3 |
| C. |
Density 20oC |
| D.Infrared spectrum |
D. |
Infrared spectrum |
Maxima at 1 156 and 1 832 cm-1 |
| D. |
Infrared spectrum |
| Purity |
|
| Dimethyl carbonate |
Not more than 0,2 % |
| Chlorine, total |
Not more than 3 mg/kg |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Heavy metals (as Pb) |
Not more than 10 mg/kg |
| Definition |
|
| Chemical name |
Potassium nitrite |
| Einecs |
231-832-4 |
| Chemical formula |
KNO2 |
| Molecular weight |
85,11 |
| Assay |
Content not less than 95 % on the anhydrous basis(5) |
| Description |
White or slightly yellow, deliquescent granules |
| Identification |
|
| A.Positive tests for nitrite and for potassium |
A. |
Positive tests for nitrite and for potassium |
|
| A. |
Positive tests for nitrite and for potassium |
| B.pH of a 5 % solution: |
B. |
pH of a 5 % solution: |
Not less than 6,0 and not more than 9,0 |
| B. |
pH of a 5 % solution: |
| Purity |
|
| Loss on drying |
Not more than 3 % after drying for four hours over silica gel |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Heavy metals (as Pb) |
Not more than 10 mg/kg |
| A. |
Positive tests for nitrite and for potassium |
| Definition |
|
| Chemical name |
Sodium nitrite |
| Einecs |
231-555-9 |
| Chemical formula |
NaNO2 |
| Molecular weight |
69,00 |
| Assay |
Content not less than 97 % on the anhydrous basis(6) |
| Description |
White crystalline powder or yellowish lumps |
| Identification |
|
| A.Positive tests for nitrite and for sodium |
A. |
Positive tests for nitrite and for sodium |
|
| A. |
Positive tests for nitrite and for sodium |
| Purity |
|
| Loss on drying |
Not more than 0,25 % after drying over silica gel for four hours |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Heavy metals (as Pb) |
Not more than 10 mg/kg |
| A. |
Positive tests for nitrite and for sodium |
| Synonyms |
Chile saltpetre |
| Cubic or soda nitre |
| Definition |
|
| Chemical name |
Sodium nitrate |
| Einecs |
231-554-3 |
| Chemical formula |
NaNO3 |
| Molecular weight |
85,00 |
| Assay |
Content not less than 99 % after drying |
| Description |
White crystalline, slightly hygroscopic powder |
| Identification |
|
| A.Positive tests for nitrate and for sodium |
A. |
Positive tests for nitrate and for sodium |
|
| A. |
Positive tests for nitrate and for sodium |
| B.pH of a 5 % solution |
B. |
pH of a 5 % solution |
Not less than 5,5 and more than 8,3 |
| B. |
pH of a 5 % solution |
| Purity |
|
| Loss on drying |
Not more than 2 % after drying at 105oC for four hours |
| Nitrites |
Not more than 30 mg/kg expressed as NaNO2 |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| A. |
Positive tests for nitrate and for sodium |
| Definition |
Liquid sodium nitrate is an aqueous solution of sodium nitrate as the direct result of the chemical reaction between sodium hydroxide and nitric acid in stoechiometric amounts, without subsequent crystallisation. Standardised forms prepared from liquid sodium nitrate meeting these specifications may contain nitric acid in excessive amounts, if clearly stated or labelled. |
| Chemical name |
Sodium nitrate |
| Einecs |
231-554-3 |
| Chemical formula |
NaNO3 |
| Molecular weight |
85,00 |
| Assay |
Content between 33,5 % and 40,0 % of NaNO3 |
| Description |
Clear colourless liquid |
| Identification |
|
| A.Positive tests for nitrate and for sodium |
A. |
Positive tests for nitrate and for sodium |
|
| A. |
Positive tests for nitrate and for sodium |
| B.pH |
B. |
pH |
Not less than 1,5 and not more than 3,5 |
| B. |
pH |
| Purity |
|
| Free nitric acid |
Not more than 0,01 % |
| Nitrites |
Not more than 10 mg/kg expressed as NaNO2 |
| Arsenic |
Not more than 1 mg/kg |
| Lead |
Not more than 1 mg/kg |
| Mercury |
Not more than 0,3 mg/kg |
| This specification refers to a 35 % aqueous solution |
|
| A. |
Positive tests for nitrate and for sodium |
| Synonyms |
Chile saltpetreCubic or soda nitre |
| Definition |
|
| Chemical name |
Potassium nitrate |
| Einecs |
231-818-8 |
| Chemical formula |
KNO3 |
| Molecular weight |
101,11 |
| Assay |
Content not less than 99 % on the anhydrous basis |
| Description |
White crystalline powder or transparent prisms having a cooling, saline, pungent taste |
| Identification |
|
| A.Positive tests for nitrate and for potassium |
A. |
Positive tests for nitrate and for potassium |
|
| A. |
Positive tests for nitrate and for potassium |
| B.pH of a 5 % solution |
B. |
pH of a 5 % solution |
Not less than 4,5 and not more than 8,5 |
| B. |
pH of a 5 % solution |
| Purity |
|
| Loss on drying |
Not more than 1 % after drying at 105oC for four hours |
| Nitrites |
Not more than 20 mg/kg expressed as KNO2 |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Heavy metals (as Pb) |
Not more than 10 mg/kg |
| A. |
Positive tests for nitrate and for potassium |
| Definition |
|
| Chemical name |
Acetic acid |
| Ethanoic acid |
| Einecs |
200-580-7 |
| Chemical formula |
C2H4O2 |
| Molecular weight |
60,05 |
| Assay |
Content not less than 99,8 % |
| Description |
Clear, colourless liquid having a pungent, characteristic odour |
| Identification |
|
| A.Boiling point |
A. |
Boiling point |
118oC at 760 mm pressure (of mercury) |
| A. |
Boiling point |
| B.Specific gravity |
B. |
Specific gravity |
About 1,049 |
| B. |
Specific gravity |
| C.A one in three solution gives positive tests for acetate |
C. |
A one in three solution gives positive tests for acetate |
|
| C. |
A one in three solution gives positive tests for acetate |
| D.Solidification point |
D. |
Solidification point |
Not lower than 14,5oC |
| D. |
Solidification point |
| Purity |
|
| Non-volatile residue |
Not more than 100 mg/kg |
| Formic acid, formates and other oxidisable substances |
Not more than 1 000 mg/kg expressed as formic acid |
| Readily oxidisable substances |
Dilute 2 ml of the sample in a glass-stoppered container with 10 ml of water and add 0,1 ml of 0,1 N potassium permanganate. The pink colour does not change to brown within 30 minutes |
| Arsenic |
Not more than 1 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Heavy metals (as Pb) |
Not more than 10 mg/kg |
| C. |
A one in three solution gives positive tests for acetate |
| Definition |
|
| Chemical name |
Potassium acetate |
| Einecs |
204-822-2 |
| Chemical formula |
C2H3O2K |
| Molecular weight |
98,14 |
| Assay |
Content not less than 99 % on the anhydrous basis |
| Description |
Colourless, deliquescent crystals or a white crystalline powder, odourless or with a faint acetic odour |
| Identification |
|
| A.pH of a 5 % aqueous solution |
A. |
pH of a 5 % aqueous solution |
Not less than 7,5 and not more than 9,0 |
| A. |
pH of a 5 % aqueous solution |
| B.Positive tests for acetate and for potassium |
B. |
Positive tests for acetate and for potassium |
|
| B. |
Positive tests for acetate and for potassium |
| Purity |
|
| Loss on drying |
Not more than 8 % after drying at 150oC for two hours |
| Formic acid, formates and other oxidisable substances |
Not more than 1 000 mg/kg expressed as formic acid |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Heavy metals (as Pb) |
Not more than 10 mg/kg |
| A. |
pH of a 5 % aqueous solution |
| B. |
Positive tests for acetate and for potassium |
| Definition |
|
| Chemical name |
Sodium acetate |
| Einecs |
204-823-8 |
| Chemical formula |
C2H3NaO2·nH2O (n = 0 or 3) |
| Molecular weight |
Anhydrous: |
82,03 |
| Trihydrate: |
136,08 |
| Assay |
Content (for both of anhydrous and trihydrate form) not less than 98,5 % on the anhydrous basis |
| Description |
Anhydrous: |
White, odourless, granular, hygroscopic powder |
| Trihydrate: |
Colourless, transparent crystals or a granular crystalline powder, odourless or with a faint, acetic odour. Effloresces in warm, dry air |
| Identification |
|
| A.pH of a 1 % aqueous solution |
A. |
pH of a 1 % aqueous solution |
Not less than 8,0 and not more than 9,5 |
| A. |
pH of a 1 % aqueous solution |
| B.Positive tests for acetate and for sodium |
B. |
Positive tests for acetate and for sodium |
|
| B. |
Positive tests for acetate and for sodium |
| Purity |
|
| Loss on drying |
Anhydrous: |
Not more than 2 % (120oC, 4 hours) |
| Trihydrate: |
Between 36 and 42 % (120oC, 4 hours) |
| Formic acid, formates and other oxidisable substances |
Not more than 1 000 mg/kg expressed as formic acid |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Heavy metals (as Pb) |
Not more than 10 mg/kg |
| A. |
pH of a 1 % aqueous solution |
| B. |
Positive tests for acetate and for sodium |
| Definition |
Sodium diacetate is a molecular compound of sodium acetate and acetic acid |
| Chemical name |
Sodium hydrogen diacetate |
| Einecs |
204-814-9 |
| Chemical formula |
C4H7NaO4·nH2O (n = 0 or 3) |
| Molecular weight |
142,09 (anhydrous) |
| Assay |
Content 39 to 41 % of free acetic acid and 58 to 60 % of sodium acetate |
| Description |
White, hygroscopic crystalline solid with an acetic odour |
| Identification |
|
| A.pH of a 10 % aqueous solution |
A. |
pH of a 10 % aqueous solution |
Not less than 4,5 and not more than 5,0 |
| A. |
pH of a 10 % aqueous solution |
| B.Positive tests for acetate and for sodium |
B. |
Positive tests for acetate and for sodium |
|
| B. |
Positive tests for acetate and for sodium |
| Purity |
|
| Water content |
Not more than 2 % (Karl Fischer method) |
| Formic acid, formates and other oxidisable substances |
Not more than 1 000 mg/kg expressed as formic acid |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Heavy metals (as Pb) |
Not more than 10 mg/kg |
| A. |
pH of a 10 % aqueous solution |
| B. |
Positive tests for acetate and for sodium |
| Definition |
|
| Chemical name |
Calcium acetate |
| Einecs |
200-540-9 |
| Chemical formula |
Anhydrous: |
C4H6O4Ca |
| Monohydrate: |
C4H6O4Ca· H2O |
| Molecular weight |
Anhydrous: |
158,17 |
| Monohydrate: |
176,18 |
| Assay |
Content not less than 98 % on the anhydrous basis |
| Description |
Anhydrous calcium acetate is a white, hygroscopic, bulky, crystalline solid with a slightly bitter taste. A slight odour of acetic acid may be present. The monohydrate may be needles, granules or powder |
| Identification |
|
| A.pH of a 10 % aqueous solution |
A. |
pH of a 10 % aqueous solution |
Not less than 6,0 and not more than 9,0 |
| A. |
pH of a 10 % aqueous solution |
| B.Positive tests for acetate and for calcium |
B. |
Positive tests for acetate and for calcium |
|
| B. |
Positive tests for acetate and for calcium |
| Purity |
|
| Loss on drying |
Not more than 11 % after drying (155oC to constant weight, for the monohydrate) |
| Water insoluble matter |
Not more than 0,3 % |
| Formic acid, formates and other oxidisable substances |
Not more than 1 000 mg/kg expressed as formic acid |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Heavy metals (as Pb) |
Not more than 10 mg/kg |
| A. |
pH of a 10 % aqueous solution |
| B. |
Positive tests for acetate and for calcium |
| Definition |
|
| Chemical name |
Lactic acid |
| 2-Hydroxypropionic acid |
| 1-Hydroxyethane-1-carboxylic acid |
| Einecs |
200-018-0 |
| Chemical formula |
C3H6O3 |
| Molecular weight |
90,08 |
| Assay |
Content not less than 76 % and not more than 84 % |
| Description |
Colourless or yellowish, nearly odourless, syrupy liquid with an acid taste, consisting of a mixture of lactic acid (C3H6O3) and lactic acid lactate (C6H10O5). It is obtained by the lactic fermentation of sugars or is prepared synthetically |
| Note:Lactic acid is hygroscopic and when concentrated by boiling, it condenses to form lactic acid lactate, which on dilution and heating hydrolyzes to lactic acid |
|
| Identification |
|
| A.Positive test for lactate |
A. |
Positive test for lactate |
|
| A. |
Positive test for lactate |
| Purity |
|
| Sulphated ash |
Not more than 0,1 % |
| Chloride |
Not more than 0,2 % |
| Sulphate |
Not more than 0,25 % |
| Iron |
Not more than 10 mg/kg |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Heavy metals (as Pb) |
Not more than 10 mg/kg |
| Note:This specification refers to a 80 % aqueous solution; for weaker aqueous solutions, calculate values corresponding to their lactic acid content |
|
| A. |
Positive test for lactate |
| Definition |
|
| Chemical name |
Propionic acid |
| Propanoic acid |
| Einecs |
201-176-3 |
| Chemical formula |
C3H6O2 |
| Molecular weight |
74,08 |
| Assay |
Content not less than 99,5 % |
| Description |
Colourless or slightly yellowish, oily liquid with a slightly pungent odour |
| Indentification |
|
| A.Melting point |
A. |
Melting point |
– 22oC |
| A. |
Melting point |
| B.Distillation range |
B. |
Distillation range |
138,5oC to 142,5oC |
| B. |
Distillation range |
| Purity |
|
| Non-volatile residue |
Not more than 0,01 % when dried at 140oC to constant weight |
| Aldehydes |
Not more than 0,1 % expressed as formaldehyde |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Heavy metals (as Pb) |
Not more than 10 mg/kg |
| Definition |
|
| Chemical name |
Sodium propionate |
| Sodium propanoate |
| Einecs |
205-290-4 |
| Chemical formula |
C3H5O2Na |
| Molecular weight |
96,06 |
| Assay |
Content not less than 99 % after drying for two hours at 105oC |
| Description |
White crystalline hygroscopic powder, or a fine white powder |
| Identification |
|
| A.Positive tests for propionate and for sodium |
A. |
Positive tests for propionate and for sodium |
|
| A. |
Positive tests for propionate and for sodium |
| B.pH of a 10 % aqueous solution |
B. |
pH of a 10 % aqueous solution |
Not less than 7,5 and not more than 10,5 |
| B. |
pH of a 10 % aqueous solution |
| Purity |
|
| Loss on drying |
Not more than 4 % determined by drying for two hours at 105oC |
| Water insolubles |
Not more than 0,1 % |
| Iron |
Not more than 50 mg/kg |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Heavy metals (as Pb) |
Not more than 10 mg/kg |
| A. |
Positive tests for propionate and for sodium |
| B. |
pH of a 10 % aqueous solution |
| Definition |
|
| Chemical name |
Calcium propionate |
| Einecs |
223-795-8 |
| Chemical formula |
C6H10O4Ca |
| Molecular weight |
186,22 |
| Assay |
Content not less than 99 %, after drying for two hours at 105oC |
| Description |
White crystalline powder |
| Identification |
|
| A.Positive tests for propionate and for calcium |
A. |
Positive tests for propionate and for calcium |
|
| A. |
Positive tests for propionate and for calcium |
| B.pH of a 10 % aqueous solution |
B. |
pH of a 10 % aqueous solution |
Between 6,0 and 9,0 |
| B. |
pH of a 10 % aqueous solution |
| Purity |
|
| Loss on drying |
Not more than 4 %, determined by drying for two hours at 105oC |
| Water insolubles |
Not more than 0,3 % |
| Iron |
Not more than 50 mg/kg |
| Fluoride |
Not more than 10 mg/kg |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Heavy metals (as Pb) |
Not more than 10 mg/kg |
| A. |
Positive tests for propionate and for calcium |
| B. |
pH of a 10 % aqueous solution |
| Definition |
|
| Chemical name |
Potassium propionate |
| Potassium propanoate |
| Einecs |
206-323-5 |
| Chemical formula |
C3H5KO2 |
| Molecular weight |
112,17 |
| Assay |
Content not less than 99 % after drying for two hours at 105oC |
| Description |
White crystalline powder |
| Identification |
|
| A.Positive tests for propionate and for potassium |
A. |
Positive tests for propionate and for potassium |
|
| A. |
Positive tests for propionate and for potassium |
| Purity |
|
| Loss on drying |
Not more than 4 %, determined by drying for two hours at 105oC |
| Water-insoluble substances |
Not more than 0,3 % |
| Iron |
Not more than 30 mg/kg |
| Fluoride |
Not more than 10 mg/kg |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Heavy metals (as Pb) |
Not more than 10 mg/kg |
| A. |
Positive tests for propionate and for potassium |
| Synonyms |
Boracic acid |
| Orthoboric acid |
| Borofax |
| Definition |
|
| Einecs |
233-139-2 |
| Chemical formula |
H3BO3 |
| Molecular weight |
61,84 |
| Assay |
Content not less than 99,5 % |
| Description |
Colourless, odourless, transparent crystals or white granules or powder; slightly unctuous to the touch; occurs in nature as the mineral sassolite |
| Identification |
|
| A.Melting point |
A. |
Melting point |
At approximately 171oC |
| A. |
Melting point |
| B.Burns with a nice green flame |
B. |
Burns with a nice green flame |
|
| B. |
Burns with a nice green flame |
| C.pH of a 3,3 % aqueous solution |
C. |
pH of a 3,3 % aqueous solution |
Between 3,8 and 4,8 |
| C. |
pH of a 3,3 % aqueous solution |
| Purity |
|
| Peroxides |
No colour develops with added KI-solution |
| Arsenic |
Not more than 1 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Heavy metals (as Pb) |
Not more than 10 mg/kg |
| B. |
Burns with a nice green flame |
| C. |
pH of a 3,3 % aqueous solution |
| Synonyms |
Sodium borate |
| Definition |
|
| Chemical name |
Sodium tetraborate |
| Sodium biborate |
| Sodium pyroborate |
| Anhydrous tetraborate |
| Einecs |
215-540-4 |
| Chemical formula |
Na2B4O7 |
| Na2B4O7·10H2O |
| Molecular weight |
201,27 |
| Description |
Powder or glass-like plates becoming opaque on exposure to air; slowly soluble in water |
| Identification |
|
| A.Melting range |
A. |
Melting range |
Between 171oC and 175oC with decomposition |
| A. |
Melting range |
| Purity |
|
| Peroxides |
No colour develops with added KI-solution |
| Arsenic |
Not more than 1 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Heavy metals (as Pb) |
Not more than 10 mg/kg |
| Synonyms |
Carbonic acid gas |
| Dry ice (solid form) |
| Carbonic anhydride |
| Definition |
|
| Chemical name |
Carbon dioxide |
| Einecs |
204-696-9 |
| Chemical formula |
CO2 |
| Molecular weight |
44,01 |
| Assay |
Content not less than 99 % v/v on the gaseous basis |
| Description |
A colourless gas under normal environmental conditions with a slight pungent odour. Commercial carbon dioxide is shipped and handled as a liquid in pressurised cylinders or bulk storage systems, or in compressed solid blocks of ‘dry ice’. Solid (dry ice) forms usually contain added substances, such as propylene glycol or mineral oil, as binders |
| Identification |
|
| A.Precipitation (Precipitate formation) |
A. |
Precipitation (Precipitate formation) |
When a stream of the sample is passed through a solution of barium hydroxide, a white precipitate is produced which dissolves with effervescence in dilute acetic acid |
| A. |
Precipitation (Precipitate formation) |
| Purity |
|
| Acidity |
915 ml of gas bubbled through 50 ml of freshly boiled water must not render the latter more acid to methylorange than is 50 ml freshly boiled water to which has been added 1 ml of hydrochloric acid (0,01 N) |
| Reducing substances, hydrogen phosphide and sulphide |
915 ml of gas bubbled through 25 ml of ammoniacal silver nitrate reagent to which has been added 3 ml of ammonia must not cause clouding or blackening of this solution |
| Carbon monoxide |
Not more than 10 μl/l |
| Oil content |
Not more than 0,1 mg/l |
| A. |
Precipitation (Precipitate formation) |
| Synonyms |
DL-Malic acid, pomalous acid |
| Definition |
|
| Chemical name |
DL-Malic acid, hydroxybutanedioic acid, hydroxysuccinic acid |
| Einecs |
230-022-8 |
| Chemical formula |
C4H6O5 |
| Molecular weight |
134,09 |
| Assay |
Content not less than 99,0 % |
| Description |
White or nearly white crystalline powder or granules |
| Identification |
|
| A.Melting range between 127oC and 132oC |
A. |
Melting range between 127oC and 132oC |
|
| A. |
Melting range between 127oC and 132oC |
| B.Positive test for malate |
B. |
Positive test for malate |
|
| B. |
Positive test for malate |
| C.Solutions of this substance are optically inactive in all concentrations |
C. |
Solutions of this substance are optically inactive in all concentrations |
|
| C. |
Solutions of this substance are optically inactive in all concentrations |
| Purity |
|
| Sulphated ash |
Not more than 0,1 % |
| Fumaric acid |
Not more than 1,0 % |
| Maleic acid |
Not more than 0,05 % |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| A. |
Melting range between 127oC and 132oC |
| B. |
Positive test for malate |
| C. |
Solutions of this substance are optically inactive in all concentrations |
| Definition |
|
| Chemical name |
Trans-butenedioic acid, trans-1,2-ethylene-dicarboxylic acid |
| Einecs |
203-743-0 |
| Chemical formula |
C4H4O4 |
| Molecular weight |
116,07 |
| Assay |
Content not less than 99,0 % on the anhydrous basis |
| Description |
White crystalline powder or granules |
| Identification |
|
| A.Melting range |
A. |
Melting range |
286oC-302oC (closed capillary, rapid heating) |
| A. |
Melting range |
| B.Positive tests for double bonds and for 1,2-dicarboxylic acid |
B. |
Positive tests for double bonds and for 1,2-dicarboxylic acid |
|
| B. |
Positive tests for double bonds and for 1,2-dicarboxylic acid |
| C.pH of a 0,05 % solution at 25oC |
C. |
pH of a 0,05 % solution at 25oC |
3,0 -3,2 |
| C. |
pH of a 0,05 % solution at 25oC |
| Purity |
|
| Loss on drying |
Not more than 0,5 % (120oC, 4h) |
| Sulphated ash |
Not more than 0,1 % |
| Maleic acid |
Not more than 0,1 % |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| B. |
Positive tests for double bonds and for 1,2-dicarboxylic acid |
| C. |
pH of a 0,05 % solution at 25oC |
| Definition |
|
| Chemical name |
L-ascorbic acid |
| Ascorbic acid |
| 2,3-Didehydro-L-threo-hexono-1,4-lactone |
| 3-Keto-L-gulofuranolactone |
| Einecs |
200-066-2 |
| Chemical formula |
C6H8O6 |
| Molecular weight |
176,13 |
| Assay |
Ascorbic acid, after drying in a vacuum desiccator over sulphuric acid for 24 hours, contains not less than 99 % of C6H8O6 |
| Description |
White to pale yellow, odourless crystalline solid |
| Identification |
|
| A.Melting range |
A. |
Melting range |
Between 189oC and 193oC with decomposition |
| A. |
Melting range |
| B.Positive tests for ascorbic acid |
B. |
Positive tests for ascorbic acid |
|
| B. |
Positive tests for ascorbic acid |
| Purity |
|
| Loss on drying |
Not more than 0,4 % after drying in a vacuum desiccator over sulphuric acid for 24 hours |
| Sulphated ash |
Not more than 0,1 % |
| Specific rotation |
[α]D20between +20,5oand +21,5o(10 % w/v aqueous solution) |
| pH of a 2 % aqueous solution |
Between 2,4 and 2,8 |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Heavy metals (as Pb) |
Not more than 10 mg/kg |
| B. |
Positive tests for ascorbic acid |
| Definition |
|
| Chemical name |
Sodium ascorbate |
| Sodium L-ascorbate |
| 2,3-Didehydro-L-threo-hexono-1,4-lactone sodium enolate |
| 3-Keto-L-gulofurano-lactone sodium enolate |
| Einecs |
205-126-1 |
| Chemical formula |
C6H7O6Na |
| Molecular weight |
198,11 |
| Assay |
Sodium ascorbate, after drying in a vacuum desiccator over sulphuric acid for 24 hours, contains not less than 99 % of C6H7O6Na |
| Description |
White or almost white, odourless crystalline solid which darkens on exposure to light |
| Identification |
|
| A.Positive tests for ascorbate and for sodium |
A. |
Positive tests for ascorbate and for sodium |
|
| A. |
Positive tests for ascorbate and for sodium |
| Purity |
|
| Loss on drying |
Not more than 0,25 % after drying in a vacuum desiccator over sulphuric acid for 24 hours |
| Specific rotation |
[α]D20between + 103oand + 106o(10 % w/v aqueous solution) |
| pH of 10 % aqueous solution |
Between 6,5 and 8,0 |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Heavy metals (as Pb) |
Not more than 10 mg/kg |
| A. |
Positive tests for ascorbate and for sodium |
| Definition |
|
| Chemical name |
Calcium ascorbate dihydrate |
| Calcium salt of 2,3-didehydro-L-threo-hexono-1,4-lactone dihydrate |
| Einecs |
227-261-5 |
| Chemical formula |
C12H14O12Ca· 2H2O |
| Molecular weight |
426,35 |
| Assay |
Content not less than 98 % on a volatile matter-free basis |
| Description |
White to slightly pale greyish-yellow odourless crystalline powder |
| Identification |
|
| A.Positive tests for ascorbate and for calcium |
A. |
Positive tests for ascorbate and for calcium |
|
| A. |
Positive tests for ascorbate and for calcium |
| Purity |
|
| Fluoride |
Not more than 10 mg/kg (expressed as fluorine) |
| Specific rotation |
[α]D20between + 95oand + 97o(5 % w/v aqueous solution) |
| pH of 10 % aqueous solution |
Between 6,0 and 7,5 |
| Volatile matter |
Not more than 0,3 % determined by drying at room temperature for 24 hours in a desiccator containing sulphuric acid or phosphorus pentoxide |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Heavy metals (as Pb) |
Not more than 10 mg/kg |
| A. |
Positive tests for ascorbate and for calcium |
| Definition |
|
| Chemical name |
Ascorbyl palmitate |
| L-ascorbyl palmitate |
| 2,3-didehydro-L-threo-hexono-1,4-lactone-6-palmitate |
| 6-palmitoyl-3-keto-L-gulofuranolactone |
| Einecs |
205-305-4 |
| Chemical formula |
C22H38O7 |
| Molecular weight |
414,55 |
| Assay |
Content not less than 98 % on the dried basis |
| Description |
White or yellowish-white solid with a citrus-like odour |
| Identification |
|
| A.Melting range |
A. |
Melting range |
Between 107oC and 117oC |
| A. |
Melting range |
| Purity |
|
| Loss on drying |
Not more than 2,0 % after drying in a vacuum oven at 56oC and 60oC for one hour |
| Sulphated ash |
Not more than 0,1 % |
| Specific rotation |
[α]D20between + 21oand + 24o(5 % w/v in methanol solution) |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Heavy metals (as Pb) |
Not more than 10 mg/kg |
| Definition |
|
| Chemical name |
Ascorbyl stearate |
| L-ascorbyl stearate |
| 2,3-didehydro-L-threo-hexono-1,4-lactone-6-stearate |
| 6-stearoyl-3-keto-L-gulofuranolactone |
| Einecs |
246-944-9 |
| Chemical formula |
C24H42O7 |
| Molecular weight |
442,6 |
| Assay |
Content not less than 98 % |
| Description |
White or yellowish, white solid with a citrus-like odour |
| Identification |
|
| A.Melting point |
A. |
Melting point |
About 116oC |
| A. |
Melting point |
| Purity |
|
| Loss on drying |
Not more than 2,0 % after drying in a vacuum oven at 56oC to 60oC for one hour |
| Sulphated ash |
Not more than 0,1 % |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Heavy metals (as Pb) |
Not more than 10 mg/kg |
| Definition |
Product obtained by the vacuum steam distillation of edible vegetable oil products, comprising concentrated tocopherols and tocotrienols |
| Contains tocopherols such as d-α-, d-β-, d-γ- and d-ς-tocopherols |
| Molecular weight |
430,71 (d-α-tocopherol) |
| Assay |
Content not less than 34 % of total tocopherols |
| Description |
Brownish red to red, clear, viscous oil having a mild, characteristic odour and taste. May show a slight separation of wax-like constituents in microcrystalline form |
| Identification |
|
| A.By suitable gas liquid chromatographic method |
A. |
By suitable gas liquid chromatographic method |
|
| A. |
By suitable gas liquid chromatographic method |
| B.Solubility tests |
B. |
Solubility tests |
Insoluble in water. Soluble in ethanol. Miscible in ether |
| B. |
Solubility tests |
| Purity |
|
| Sulphated ash |
Not more than 0,1 % |
| Specific rotation |
[α]D20not less than + 20o |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Heavy metals (as Pb) |
Not more than 10 mg/kg |
| A. |
By suitable gas liquid chromatographic method |
| Synonyms |
DL-α-Tocopherol |
| Definition |
|
| Chemical name |
DL-5,7,8-Trimethyltocol |
| DL-2,5,7,8-tetramethyl-2-(4′,8′,12′-trimethyltridecyl)-6-chromanol |
| Einecs |
233-466-0 |
| Chemical formula |
C29H50O2 |
| Molecular weight |
430,71 |
| Assay |
Content not less than 96 % |
| Description |
Slightly yellow to amber, nearly odourless, clear, viscous oil which oxidises and darkens on exposure to air or light |
| Identification |
|
| A.Solubility tests |
A. |
Solubility tests |
Insoluble in water, freely soluble in ethanol, miscible in ether |
| A. |
Solubility tests |
| B.Spectro-photometry |
B. |
Spectro-photometry |
In absolute ethanol the maximum absorption is about 292 nm |
| B. |
Spectro-photometry |
| Purity |
|
| Refractive index |
nD201,503 -1,507 |
| Specific absorptionin ethanol |
(292 nm) 72-76(0,01 g in 200 ml of absolute ethanol) |
| Sulphated ash |
Not more than 0,1 % |
| Specific rotation |
[α]D250o±0,05o(1 in 10 solution in chloroform) |
| Lead |
Not more than 2 mg/kg |
| Synonyms |
dl-γ-Tocopherol |
| Definition |
|
| Chemical name |
2,7,8-trimethyl-2-(4′,8′,12′-trimethyltridecyl)-6-chromanol |
| Einecs |
231-523-4 |
| Chemical formula |
C28H48O2 |
| Molecular weight |
416,69 |
| Assay |
Content not less than 97 % |
| Description |
Clear, viscous, pale yellow oil which oxidises and darkens on exposure to air or light |
| Identification |
|
| A.Spectrometry |
A. |
Spectrometry |
Maximum absorptions in absolute ethanol at about 298 nm and 257 nm |
| A. |
Spectrometry |
| Purity |
|
| Specific absorptionin ethanol |
(298 nm) between 91 and 97 |
| (257 nm) between 5,0 and 8,0 |
| Refractive index |
1,503 -1,507 |
| Sulphated ash |
Not more than 0,1 % |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Heavy metals (as Pb) |
Not more than 10 mg/kg |
| Definition |
|
| Chemical name |
2,8-dimethyl-2-(4′,8′,12′-trimethyltridecyl)-6-chromanol |
| Einecs |
204-299-0 |
| Chemical formula |
C27H46O2 |
| Molecular weight |
402,7 |
| Assay |
Content not less than 97 % |
| Description |
Clear, viscous, pale yellowish or orange oil which oxidises and darkens on exposure to air or light |
| Identification |
|
| A.Spectrometry |
A. |
Spectrometry |
Maximum absorptions in absolute ethanol at about 298 nm and 257 nm |
| A. |
Spectrometry |
| Purity |
|
| Specific absorptionin ethanol |
(298 nm) between 89 and 95 |
| (257 nm) between 3,0 and 6,0 |
| Refractive index |
1,500 -1,504 |
| Sulphated ash |
Not more than 0,1 % |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Heavy metals (as Pb) |
Not more than 10 mg/kg |
| Definition |
|
| Chemical name |
Propyl gallate |
| Propyl ester of gallic acid |
| n-propyl ester of 3,4,5-trihydroxybenzoic acid |
| Einecs |
204-498-2 |
| Chemical formula |
C10H12O5 |
| Molecular weight |
212,20 |
| Assay |
Content not less than 98 % on the anhydrous basis |
| Description |
White to creamy-white, crystalline, odourless solid |
| Identification |
|
| A.Solubility tests |
A. |
Solubility tests |
Slightly soluble in water, freely soluble in ethanol, ether and propane-1,2-diol |
| A. |
Solubility tests |
| B.Melting range |
B. |
Melting range |
Between 146oC and 150oC after drying at 110oC for four hours |
| B. |
Melting range |
| Purity |
|
| Loss on drying |
Not more than 1,0 % (110oC, four hours) |
| Sulphated ash |
Not more than 0,1 % |
| Free acid |
Not more than 0,5 % (as gallic acid) |
| Chlorinated organic compound |
Not more than 100 mg/kg (as C1) |
| Specific absorptionin ethanol |
(275 nm) not less than 485 and not more than 520 |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Heavy metals (as Pb) |
Not more than 10 mg/kg |
| Definition |
|
| Chemical name |
Octyl gallate |
| Octyl ester of gallic acid |
| n-octyl ester of 3,4,5-trihydroxybenzoic acid |
| Einecs |
213-853-0 |
| Chemical formula |
C15H22O5 |
| Molecular weight |
282,34 |
| Assay |
Content not less than 98 % after drying at 90oC for six hours |
| Description |
White to creamy-white odourless solid |
| Identification |
|
| A.Solubility tests |
A. |
Solubility tests |
Insoluble in water, freely soluble in ethanol, ether and propane-1,2-diol |
| A. |
Solubility tests |
| B.Melting range |
B. |
Melting range |
Between 99oC and 102oC after drying at 90oC for six hours |
| B. |
Melting range |
| Purity |
|
| Loss on drying |
Not more than 0,5 % (90oC, six hours) |
| Sulphated ash |
Not more than 0,05 % |
| Free acid |
Not more than 0,5 % (as gallic acid) |
| Chlorinated organic compound |
Not more than 100 mg/kg (as C1) |
| Specific absorptionin ethanol |
(275 nm) not less than 375 and not more than 390 |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Heavy metals (as Pb) |
Not more than 10 mg/kg |
| Synonyms |
Lauryl gallate |
| Definition |
|
| Chemical name |
Dodecyl gallate |
| n-dodecyl (or lauryl) ester of 3,4,5-trihydroxybenzoic acid |
| Dodecyl ester of gallic acid |
| Einecs |
214-620-6 |
| Chemical formula |
C19H30O5 |
| Molecular weight |
338,45 |
| Assay |
Content not less than 98 % after drying at 90oC for six hours |
| Description |
White or creamy-white odourless solid |
| Identification |
|
| A.Solubility tests |
A. |
Solubility tests |
Insoluble in water, freely soluble in ethanol and ether |
| A. |
Solubility tests |
| B.Melting range |
B. |
Melting range |
Between 95oC and 98oC after drying at 90oC for six hours |
| B. |
Melting range |
| Purity |
|
| Loss on drying |
Not more than 0,5 % (90oC, six hours) |
| Sulphated ash |
Not more than 0,05 % |
| Free acid |
Not more than 0,5 % (as gallic acid) |
| Chlorinated organic compound |
Not more than 100 mg/kg (as Cl) |
| Specific absorptionin ethanol |
(275 nm) not less than 300 and not more than 325 |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 10 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Heavy metals (as Pb) |
Not more than 30 mg/kg |
| Synonyms |
Isoascorbic acid |
| D-Araboascorbic acid |
| Definition |
|
| Chemical name |
D-Erythro-hex-2-enoic acid γ-lactone |
| Isoascorbic acid |
| D-Isoascorbic acid |
| Einecs |
201-928-0 |
| Chemical formula |
C6H8O6 |
| Molecular weight |
176,13 |
| Assay |
Content not less than 98 % on the anhydrous basis |
| Description |
White to slightly yellow crystalline solid which darkens gradually on exposure to light |
| Identification |
|
| A.Melting range |
A. |
Melting range |
About 164oC to 172oC with decomposition |
| A. |
Melting range |
| B.Positive test for ascorbic acid/colour reaction |
B. |
Positive test for ascorbic acid/colour reaction |
|
| B. |
Positive test for ascorbic acid/colour reaction |
| Purity |
|
| Loss on drying |
Not more than 0,4 % after drying under reduced pressure on silica gel for 3 hours |
| Sulphated ash |
Not more than 0,3 % |
| Specific rotation |
[α]10 % (w/v) aqueous solution between -16,5oto -18,0o |
| Oxalate |
To a solution of 1 g in 10 ml of water add 2 drops of glacial acetic acid and 5 ml of 10 % calcium acetate solution. The solution should remain clear |
| Lead |
Not more than 2 mg/kg |
| B. |
Positive test for ascorbic acid/colour reaction |
| Synonyms |
Sodium isoascorbate |
| Definition |
|
| Chemical name |
Sodium isoascorbate |
| Sodium D-isoascorbic acid |
| Sodium salt of 2,3-didehydro-D-erythro-hexono-1,4-lactone |
| 3-keto-D-gulofurano-lactone sodium enolate monohydrate |
| Einecs |
228-973-9 |
| Chemical formula |
C6H7O6Na· H2O |
| Molecular weight |
216,13 |
| Assay |
Content not less than 98 % after drying in a vacuum desiccator over sulphuric acid for 24 hours expressed on the monohydrate basis |
| Description |
White crystalline solid |
| Identification |
|
| A.Solubility tests |
A. |
Solubility tests |
Freely soluble in water, very slightly soluble in ethanol |
| A. |
Solubility tests |
| B.Positive test for ascorbic acid/colour reaction |
B. |
Positive test for ascorbic acid/colour reaction |
|
| B. |
Positive test for ascorbic acid/colour reaction |
| C.Positive test for sodium |
C. |
Positive test for sodium |
|
| C. |
Positive test for sodium |
| Purity |
|
| Loss on drying |
Not more than 0,25 % after drying in a vacuum desiccator over sulphuric acid for 24 hours |
| Specific rotation |
[α]10 % (w/v) aqueous solution between + 95oand + 98o |
| pH of a 10 % aqueous solution |
5,5 to 8,0 |
| Oxalate |
To a solution of 1 g in 10 ml of water add 2 drops of glacial acetic acid and 5 ml of 10 % calcium acetate solution. The solution should remain clear |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Heavy metals (as Pb) |
Not more than 10 mg/kg |
| B. |
Positive test for ascorbic acid/colour reaction |
| C. |
Positive test for sodium |
| Synonyms |
TBHQ |
| Definition |
|
| Chemical names |
Tert-butyl-1,4-benzenediol |
| 2-(1,1-Dimethylethyl)-1,4-benzenediol |
| Einecs |
217-752-2 |
| Chemical formula |
C10H14O2 |
| Molecular weight |
166,22 |
| Assay |
Content not less than 99 % of C10H14O2 |
| Description |
White crystalline solid having a characteristic odour |
| Identification |
|
| A.Solubility |
A. |
Solubility |
Practically insoluble in water; soluble in ethanol |
| A. |
Solubility |
| B.Melting point |
B. |
Melting point |
Not less than 126,5oC |
| B. |
Melting point |
| C.Phenolics |
C. |
Phenolics |
Dissolve about 5 mg of the sample in 10 ml of methanol and add 10,5 ml of dimethylamine solution (1 in 4). A red to pink colour is produced |
| C. |
Phenolics |
| Purity |
|
| Tertiary-Butyl-p-benzoquinone |
Not more than 0,2 % |
| 2,5-Di-tertiary-butyl hydroquinone |
Not more than 0,2 % |
| Hydroxyquinone |
Not more than 0,1 % |
| Toluene |
Not more than 25 mg/kg |
| Lead |
Not more than 2 mg/kg |
| Synonyms |
BHA |
| Definition |
|
| Chemical names |
3-Tertiary-butyl-4-hydroxyanisole |
| A mixture of 2-tertiary-butyl-4-hydroxyanisole and 3-tertiary-butyl-4-hydroxyanisole |
| Einecs |
246-563-8 |
| Chemical formula |
C11H16O2 |
| Formula weight |
180,25 |
| Assay |
Content not less than 98,5 % of C11H16O2and not less than 85 % of 3-tertiary-butyl-4-hydroxyanisole isomer |
| Description |
White or slightly yellow crystals or waxy solid with a slight aromatic smell |
| Identification |
|
| A.Solubility |
A. |
Solubility |
Insoluble in water, freely soluble in ethanol |
| A. |
Solubility |
| B.Melting range |
B. |
Melting range |
Between 48 °C and 63 °C |
| B. |
Melting range |
| C.Colour reaction |
C. |
Colour reaction |
Passes test for phenol groups |
| C. |
Colour reaction |
| Purity |
|
| Sulphated ash |
Not more than 0,05 % after calcination at 800 ± 25 °C |
| Phenolic impurities |
Not more than 0,5 % |
| Specific absorption |
(290 nm) not less than 190 and not more than 210 |
| Specific absorption |
(228 nm) not less than 326 and not more than 345 |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Synonyms |
BHT |
| Definition |
|
| Chemical name |
2,6-Ditertiary-butyl-p-cresol |
| 4-Methyl-2,6-ditertiarybutylphenol |
| Einecs |
204-881-4 |
| Chemical formula |
C15H24O |
| Molecular weight |
220,36 |
| Assay |
Content not less than 99 % |
| Description |
White, crystalline or flaked solid, odourless or having a characteristic faint aromatic odour |
| Identification |
|
| A.Solubility tests |
A. |
Solubility tests |
Insoluble in water and propane- 1,2-diol |
| A. |
Solubility tests |
| Freely soluble in ethanol |
| B.Melting point |
B. |
Melting point |
At 70oC |
| B. |
Melting point |
| C.Absorbance maximum |
C. |
Absorbance maximum |
The absorption in the range 230 to 320 nm of a 2 cm layer of a 1 in 100 000 solution in dehydrated ethanol exhibits a maximum only at 278 nm |
| C. |
Absorbance maximum |
| Purity |
|
| Sulphated ash |
Not more than 0,005 % |
| Phenolic impurities |
Not more than 0,5 % |
| Specific absorptionin ethanol |
(278 nm) not less than 81 and not more than 88 |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Heavy metals (as Pb) |
Not more than 10 mg/kg |
| Synonyms |
Phosphatides |
| Phospholipids |
| Definition |
Lecithins are mixtures or fractions of phosphatides obtained by physical procedures from animal or vegetable foodstuffs; they also include hydrolysed products obtained through the use of harmless and appropriate enzymes. The final product must not show any signs of residual enzyme activity The lecithins may be slightly bleached in aqueous medium by means of hydrogen peroxide. This oxidation must not chemically modify the lecithin phosphatides |
| Einecs |
232-307-2 |
| Assay |
—Lecithins: not less than 60,0 % of substances insoluble in acetone |
— |
Lecithins: not less than 60,0 % of substances insoluble in acetone |
| — |
Lecithins: not less than 60,0 % of substances insoluble in acetone |
| —Hydrolysed lecithins: not less than 56,0 % of substances insoluble in acetone |
— |
Hydrolysed lecithins: not less than 56,0 % of substances insoluble in acetone |
| — |
Hydrolysed lecithins: not less than 56,0 % of substances insoluble in acetone |
| Description |
—Lecithins: brown liquid or viscous semi-liquid or powder |
— |
Lecithins: brown liquid or viscous semi-liquid or powder |
| — |
Lecithins: brown liquid or viscous semi-liquid or powder |
| —Hydrolysed lecithins: light brown to brown viscous liquid or paste |
— |
Hydrolysed lecithins: light brown to brown viscous liquid or paste |
| — |
Hydrolysed lecithins: light brown to brown viscous liquid or paste |
| Identification |
|
| A.Positive tests for choline, for phosphorus and fatty acids |
A. |
Positive tests for choline, for phosphorus and fatty acids |
|
| A. |
Positive tests for choline, for phosphorus and fatty acids |
| B.Test for hydrolysed lecithin |
B. |
Test for hydrolysed lecithin |
To a 800 ml beaker add 500 ml of water (30oC-35oC). Then slowly add 50 ml of the sample with constant stirring. Hydrolysed lecithin will form a homogeneous emulsion. Non-hydrolysed lecithin will form a distinct mass of about 50 g |
| B. |
Test for hydrolysed lecithin |
| Purity |
|
| Loss on drying |
Not more than 2,0 % determined by drying at 105oC for one hour |
| Toluene-insoluble matter |
Not more than 0,3 % |
| Acid value |
—Lecithins: not more than 35 mg of potassium hydroxide per gram |
— |
Lecithins: not more than 35 mg of potassium hydroxide per gram |
| — |
Lecithins: not more than 35 mg of potassium hydroxide per gram |
| —Hydrolysed lecithins: not more than 45 mg of potassium hydroxide per gram |
— |
Hydrolysed lecithins: not more than 45 mg of potassium hydroxide per gram |
| — |
Hydrolysed lecithins: not more than 45 mg of potassium hydroxide per gram |
| Peroxide value |
Equal to or less than 10 |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Heavy metals (as Pb) |
Not more than 10 mg/kg |
| — |
Lecithins: not less than 60,0 % of substances insoluble in acetone |
| — |
Hydrolysed lecithins: not less than 56,0 % of substances insoluble in acetone |
| — |
Lecithins: brown liquid or viscous semi-liquid or powder |
| — |
Hydrolysed lecithins: light brown to brown viscous liquid or paste |
| A. |
Positive tests for choline, for phosphorus and fatty acids |
| B. |
Test for hydrolysed lecithin |
| — |
Lecithins: not more than 35 mg of potassium hydroxide per gram |
| — |
Hydrolysed lecithins: not more than 45 mg of potassium hydroxide per gram |
| Definition |
|
| Chemical name |
Sodium lactate |
| Sodium 2-hydroxypropanoate |
| Einecs |
200-772-0 |
| Chemical formula |
C3H5NaO3 |
| Molecular weight |
112,06 (anhydrous) |
| Assay |
Content not less than 57 % and not more than 66 % |
| Description |
Colourless, transparent, liquid. Odourless, or with a slight, characteristic odour |
| Identification |
|
| A.Positive test for lactate |
A. |
Positive test for lactate |
|
| A. |
Positive test for lactate |
| B.Positive test for sodium |
B. |
Positive test for sodium |
|
| B. |
Positive test for sodium |
| Purity |
|
| Acidity |
Not more than 0,5 % after drying expressed as lactic acid |
| pH of a 20 % aqueous solution |
6,5 to 7,5 |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Heavy metals (as Pb) |
Not more than 10 mg/kg |
| Reducing substances |
No reduction of Fehling's solution |
| Note:This specification refers to a 60 % aqueous solution |
|
| A. |
Positive test for lactate |
| B. |
Positive test for sodium |
| Definition |
|
| Cheminal name |
Potassium lactate |
| Potassium 2-hydroxypropanoate |
| Einecs |
213-631-3 |
| Chemical formula |
C3H5O3K |
| Molecular weight |
128,17 (anhydrous) |
| Assay |
Content not less than 57 % and not more than 66 % |
| Description |
Slightly viscous, almost odourless clear liquid. Odourless, or with a slight, characteristic odour |
| Identification |
|
| A.Ignition |
A. |
Ignition |
Ignite potassium lactate solution to an ash. The ash is alkaline, and an effervescence occurs when acid is added |
| A. |
Ignition |
| B.Colour reaction |
B. |
Colour reaction |
Overlay 2 ml of potassium lactate solution on 5 ml of a 1 in 100 solution of catechol in sulphuric acid. A deep red colour is produced at the zone of contact |
| B. |
Colour reaction |
| C.Positive tests for potassium and for lactate |
C. |
Positive tests for potassium and for lactate |
|
| C. |
Positive tests for potassium and for lactate |
| Purity |
|
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Heavy metals (as Pb) |
Not more than 10 mg/kg |
| Acidity |
Dissolve 1 g of potassium lactate solution in 20 ml of water, add 3 drops of phenolphthalein TS and titrate with 0,1 N sodium hydroxide. Not more than 0,2 ml should be required |
| Reducing substances |
Potassium lactate solution shall not cause any reduction of Fehling's solution |
| Note:This specification refers to a 60 % aqueous solution |
|
| C. |
Positive tests for potassium and for lactate |
| Definition |
|
| Chemical name |
Calcium dilactate |
| Calcium dilactate hydrate |
| 2-Hydroxypropanoic acid calcium salt |
| Einecs |
212-406-7 |
| Chemical formula |
(C3H5O2)2Ca· nH2O (n = 0-5) |
| Molecular weight |
218,22 (anhydrous) |
| Assay |
Content not less than 98 % on the anhydrous basis |
| Description |
Almost odourless, white crystalline powder or granules |
| Identification |
|
| A.Positive tests for lactate and for calcium |
A. |
Positive tests for lactate and for calcium |
|
| A. |
Positive tests for lactate and for calcium |
| B.Solubility tests |
B. |
Solubility tests |
Soluble in water and practically insoluble in ethanol |
| B. |
Solubility tests |
| Purity |
|
| Loss on drying |
Determined by drying at 120oC for four hours: |
| —anhydrous: not more than 3,0 % |
— |
anhydrous: not more than 3,0 % |
| — |
anhydrous: not more than 3,0 % |
| —with 1 molecule of water: not more than 8,0 % |
— |
with 1 molecule of water: not more than 8,0 % |
| — |
with 1 molecule of water: not more than 8,0 % |
| —with 3 molecules of water: not more than 20,0 % |
— |
with 3 molecules of water: not more than 20,0 % |
| — |
with 3 molecules of water: not more than 20,0 % |
| —with 4,5 molecules of water: not more than 27,0 % |
— |
with 4,5 molecules of water: not more than 27,0 % |
| — |
with 4,5 molecules of water: not more than 27,0 % |
| Acidity |
Not more than 0,5 % of the dry matter expressed as lactic acid |
| Fluoride |
Not more than 30 mg/kg (expressed as fluorine) |
| pH of a 5 % solution |
Between 6,0 and 8,0 |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Heavy metals (as Pb) |
Not more than 10 mg/kg |
| Reducing substances |
No reduction of Fehling's solution |
| A. |
Positive tests for lactate and for calcium |
| — |
anhydrous: not more than 3,0 % |
| — |
with 1 molecule of water: not more than 8,0 % |
| — |
with 3 molecules of water: not more than 20,0 % |
| — |
with 4,5 molecules of water: not more than 27,0 % |
| Definition |
|
| Chemical name |
Citric acid |
| 2-Hydroxy-1,2,3-propanetricarboxylic acid |
| β-Hydroxytricarballytic acid |
| Einecs |
201-069-1 |
| Chemical formula |
(a)C6H8O7(anhydrous) |
(a) |
C6H8O7(anhydrous) |
| (a) |
C6H8O7(anhydrous) |
| (b)C6H8O7·H2O (monohydrate) |
(b) |
C6H8O7·H2O (monohydrate) |
| (b) |
C6H8O7·H2O (monohydrate) |
| Molecular weight |
(a)192,13 (anhydrous) |
(a) |
192,13 (anhydrous) |
| (a) |
192,13 (anhydrous) |
| (b)210,15 (monohydrate) |
(b) |
210,15 (monohydrate) |
| (b) |
210,15 (monohydrate) |
| Assay |
Citric acid may be anhydrous or it may contain 1 molecule of water. Citric acid contains not less than 99,5 % of C6H8O7, calculated on the anhydrous basis |
| Description |
Citric acid is a white or colourless, odourless, crystalline solid, having a strongly acid taste. The monohydrate effloresces in dry air |
| Identification |
|
| A.Solubility tests |
A. |
Solubility tests |
Very soluble in water; freely soluble in ethanol; soluble in ether |
| A. |
Solubility tests |
| Purity |
|
| Water content |
Anhydrous citric acid contains not more than 0,5 % water; citric acid monohydrate contains not more than 8,8 % water (Karl Fischer method) |
| Sulphated ash |
Not more than 0,05 % after calcination at 800 ± 25oC |
| Arsenic |
Not more than 1 mg/kg |
| Lead |
Not more than 1 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Heavy metals (as Pb) |
Not more than 5 mg/kg |
| Oxalates |
Not more than 100 mg/kg, expressed as oxalic acid, after drying |
| Readily carbonisable substances |
Heat 1 g of powdered sample with 10 ml of 98 % minimum sulphuric acid in a water bath at 90oC in the dark for one hour. Not more than a pale brown colour should be produced (Matching Fluid K) |
| (b) |
C6H8O7·H2O (monohydrate) |
| Synonyms |
Monosodium citrateMonobasic sodium citrate |
| Definition |
|
| Chemical name |
Monosodium citrate |
| Monosodium salt of 2-hydroxy-1,2,3-propanetricarboxylic acid |
| Chemical formula |
(a)C6H7O7Na (anhydrous) |
(a) |
C6H7O7Na (anhydrous) |
| (a) |
C6H7O7Na (anhydrous) |
| (b)C6H7O7Na· H2O (monohydrate) |
(b) |
C6H7O7Na· H2O (monohydrate) |
| (b) |
C6H7O7Na· H2O (monohydrate) |
| Molecular weight |
(a)214,11 (anhydrous) |
(a) |
214,11 (anhydrous) |
| (a) |
214,11 (anhydrous) |
| (b)232,23 (monohydrate) |
(b) |
232,23 (monohydrate) |
| (b) |
232,23 (monohydrate) |
| Assay |
Content not less than 99 % on the anhydrous basis |
| Description |
Crystalline white powder or colourless crystals |
| Identification |
|
| A.Positive tests for citrate and for sodium |
A. |
Positive tests for citrate and for sodium |
|
| A. |
Positive tests for citrate and for sodium |
| Purity |
|
| Loss on drying |
Determined by drying at 180oC for four hours:—anhydrous: not more than 1,0 % |
— |
anhydrous: not more than 1,0 % |
| — |
anhydrous: not more than 1,0 % |
| —monohydrate: not more than 8,8 % |
— |
monohydrate: not more than 8,8 % |
| — |
monohydrate: not more than 8,8 % |
| Oxalates |
Not more than 100 mg/kg expressed as oxalic acid, after drying |
| pH of a 1 % aqueous solution |
Between 3,5 and 3,8 |
| Arsenic |
Not more than 1 mg/kg |
| Lead |
Not more than 1 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Heavy metals (as Pb) |
Not more than 5 mg/kg |
| (b) |
C6H7O7Na· H2O (monohydrate) |
| A. |
Positive tests for citrate and for sodium |
| — |
anhydrous: not more than 1,0 % |
| — |
monohydrate: not more than 8,8 % |
| Synonyms |
Disodium citrateDibasic sodium citrate |
| Definition |
|
| Chemical name |
Disodium citrate |
| Disodium salt of 2-hydroxy-1,2,3-propanetricarboxylic acid |
| Disodium salt of citric acid with 1,5 molecules of water |
| Einecs |
205-623-3 |
| Chemical formula |
C6H6O7Na2·1,5H2O |
| Molecular weight |
263,11 |
| Assay |
Content not less than 99 % on the anhydrous basis |
| Description |
Crystalline white powder or colourless crystals |
| Identification |
|
| A.Positive tests for citrate and for sodium |
A. |
Positive tests for citrate and for sodium |
|
| A. |
Positive tests for citrate and for sodium |
| Purity |
|
| Loss on drying |
Not more than 13,0 % by drying at 180oC for four hours |
| Oxalates |
Not more than 100 mg/kg expressed as oxalic acid, after drying |
| pH of a 1 % aqueous solution |
Between 4,9 and 5,2 |
| Arsenic |
Not more than 1 mg/kg |
| Lead |
Not more than 1 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Heavy metals (as Pb) |
Not more than 5 mg/kg |
| A. |
Positive tests for citrate and for sodium |
| Synonyms |
Trisodium citrateTribasic sodium citrate |
| Definition |
|
| Chemical name |
Trisodium citrate |
| Trisodium salt of 2-hydroxy-1,2,3-propanetricarboxylic acid |
| Trisodium salt of citric acid, in anhydrous, dihydrate or pentahydrate form |
| Einecs |
200-675-3 |
| Chemical formula |
Anhydrous: |
C6H5O7Na3 |
| Hydrated: |
C6H5O7Na3·nH2O (n = 2 or 5) |
| Molecular weight |
258,07 (anhydrous) |
| Assay |
Not less than 99 % on the anhydrous basis |
| Description |
Crystalline white powder or colourless crystals |
| Identification |
|
| A.Positive tests for citrate and for sodium |
A. |
Positive tests for citrate and for sodium |
|
| A. |
Positive tests for citrate and for sodium |
| Purity |
|
| Loss on drying |
Determined by drying at 180oC for four hours: |
| —anhydrous: |
— |
anhydrous: |
not more than 1,0 % |
| — |
anhydrous: |
| —dihydrate: |
— |
dihydrate: |
not more than 13,5 % |
| — |
dihydrate: |
| —pentahydrate: |
— |
pentahydrate: |
not more than 30,3 % |
| — |
pentahydrate: |
| Oxalates |
Not more than 100 mg/kg expressed as oxalic acid, after drying |
| pH of a 5 % aqueous solution |
Between 7,5 and 9,0 |
| Arsenic |
Not more than 1 mg/kg |
| Lead |
Not more than 1 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Heavy metals (as Pb) |
Not more than 5 mg/kg |
| A. |
Positive tests for citrate and for sodium |
| Synonyms |
Monopotassium citrateMonobasic potassium citrate |
| Definition |
|
| Chemical name |
Monopotassium citrate |
| Monopotassium salt of 2-hydroxy-1,2,3-propanetricarboxylic acid |
| Anhydrous monopotassium salt of citric acid |
| Einecs |
212-753-4 |
| Chemical formula |
C6H7O7K |
| Molecular weight |
230,21 |
| Assay |
Content not less than 99 % on the anhydrous basis |
| Description |
White, hygroscopic, granular powder or transparent crystals |
| Identification |
|
| A.Positive tests for citrate and for potassium |
A. |
Positive tests for citrate and for potassium |
|
| A. |
Positive tests for citrate and for potassium |
| Purity |
|
| Loss on drying |
Not more than 1,0 % determined by drying at 180oC for four hours |
| Oxalates |
Not more than 100 mg/kg expressed as oxalic acid, after drying |
| pH of a 1 % aqueous solution |
Between 3,5 and 3,8 |
| Arsenic |
Not more than 1 mg/kg |
| Lead |
Not more than 1 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Heavy metals (as Pb) |
Not more than 5 mg/kg |
| A. |
Positive tests for citrate and for potassium |
| Synonyms |
Tripotassium citrateTribasic potassium citrate |
| Definition |
|
| Chemical name |
Tripotassium citrate |
| Tripotassium salt of 2-hydroxy-1,2,3-propanetricarboxylic acid |
| Monohydrated tripotassium salt of citric acid |
| Einecs |
212-755-5 |
| Chemical formula |
C6H5O7K3·H2O |
| Molecular weight |
324,42 |
| Assay |
Content not less than 99 % on the anhydrous basis |
| Description |
White, hygroscopic, granular powder or transparent crystals |
| Identification |
|
| A.Positive tests for citrate and for potassium |
A. |
Positive tests for citrate and for potassium |
|
| A. |
Positive tests for citrate and for potassium |
| Purity |
|
| Loss on drying |
Not more than 6,0 % determined by drying at 180oC for four hours |
| Oxalates |
Not more than 100 mg/kg expressed as oxalic acid, after drying |
| pH of a 5 % aqueous solution |
Between 7,5 and 9,0 |
| Arsenic |
Not more than 1 mg/kg |
| Lead |
Not more than 1 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Heavy metals (as Pb) |
Not more than 5 mg/kg |
| A. |
Positive tests for citrate and for potassium |
| Synonyms |
Monocalcium citrateMonobasic calcium citrate |
| Definition |
|
| Chemical name |
Monocalcium citrate |
| Monocalcium salt of 2-hydroxy-1,2,3-propanetricarboxylic acid |
| Monohydrate monocalcium salt of citric acid |
| Chemical formula |
(C6H7O7)2Ca· H2O |
| Molecular weight |
440,32 |
| Assay |
Content not less than 97,5 % on the anhydrous basis |
| Description |
Fine white powder |
| Identification |
|
| A.Positive tests for citrate and for calcium |
A. |
Positive tests for citrate and for calcium |
|
| A. |
Positive tests for citrate and for calcium |
| Purity |
|
| Loss on drying |
Not more than 7,0 % determined by drying at 180oC for four hours |
| Oxalates |
Not more than 100 mg/kg expressed as oxalic acid, after drying |
| pH of a 1 % aqueous solution |
Between 3,2 and 3,5 |
| Fluoride |
Not more than 30 mg/kg (expressed as fluorine) |
| Arsenic |
Not more than 1 mg/kg |
| Lead |
Not more than 1 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Heavy metals (as Pb) |
Not more than 5 mg/kg |
| Carbonates |
Dissolving 1 g of calcium citrate in 10 ml 2 N hydrochloric acid must not liberate more than a few isolated bubbles |
| A. |
Positive tests for citrate and for calcium |
| Synonyms |
Dicalcium citrateDibasic calcium citrate |
| Definition |
|
| Chemical name |
Dicalcium citrate |
| Dicalcium salt of 2-hydroxy-1,2,3-propanetricarboxylic acid |
| Trihydrated dicalcium salt of citric acid |
| Chemical formula |
(C6H7O7)2Ca2·3H2O |
| Molecular weight |
530,42 |
| Assay |
Not less than 97,5 % on the anhydrous basis |
| Description |
Fine white powder |
| Identification |
|
| A.Positive tests for citrate and for calcium |
A. |
Positive tests for citrate and for calcium |
|
| A. |
Positive tests for citrate and for calcium |
| Purity |
|
| Loss on drying |
Not more than 20,0 % determined by drying at 180oC for four hours |
| Oxalates |
Not more than 100 mg/kg expressed as oxalic acid, after drying |
| Fluoride |
Not more than 30 mg/kg (expressed as fluorine) |
| Arsenic |
Not more than 1 mg/kg |
| Lead |
Not more than 1 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Heavy metals (as Pb) |
Not more than 5 mg/kg |
| Carbonates |
Dissolving 1 g of calcium citrate in 10 ml 2 N hydrochloric acid must not liberate more than a few isolated bubbles |
| A. |
Positive tests for citrate and for calcium |
| Synonyms |
Tricalcium citrateTribasic calcium citrate |
| Definition |
|
| Chemical name |
Tricalcium citrate |
| Tricalcium salt of 2-hydroxy-1,2,3-propanetricarboxylic acid |
| Tetrahydrated tricalcium salt of citric acid |
| Einecs |
212-391-7 |
| Chemical formula |
(C6H6O7)2Ca3·4H2O |
| Molecular weight |
570,51 |
| Assay |
Not less than 97,5 % on the anhydrous basis |
| Description |
Fine white powder |
| Identification |
|
| A.Positive tests for citrate and for calcium |
A. |
Positive tests for citrate and for calcium |
|
| A. |
Positive tests for citrate and for calcium |
| Purity |
|
| Loss on drying |
Not more than 14,0 % determined by drying at 180oC for four hours |
| Oxalates |
Not more than 100 mg/kg expressed as oxalic acid, after drying |
| Fluoride |
Not more than 30 mg/kg (expressed as fluorine) |
| Arsenic |
Not more than 1 mg/kg |
| Lead |
Not more than 1 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Heavy metals (as Pb) |
Not more than 5 mg/kg |
| Carbonates |
Dissolving 1 g of calcium citrate in 10 ml 2 N hydrochloric acid must not liberate more than a few isolated bubbles |
| A. |
Positive tests for citrate and for calcium |
| Definition |
|
| Chemical name |
L-tartaric acid |
| L-2,3-dihydroxybutanedioic acid |
| d-α, β-dihydroxysuccinic acid |
| Einecs |
201-766-0 |
| Chemical formula |
C4H6O6 |
| Molecular weight |
150,09 |
| Assay |
Content not less than 99,5 % on the anhydrous basis |
| Description |
Colourless or translucent crystalline solid or white crystalline powder |
| Identification |
|
| A.Melting range |
A. |
Melting range |
Between 168oC and 170oC |
| A. |
Melting range |
| B.Positive test for tartrate |
B. |
Positive test for tartrate |
|
| B. |
Positive test for tartrate |
| Purity |
|
| Loss on drying |
Not more than 0,5 % (over P2O5, three hours) |
| Sulphated ash |
Not more than 1 000 mg/kg after calcination at 800 ± 25oC |
| Specific optical rotation of a 20 % w/v aqueous solution |
[α]20Dbetween +11,5oand +13,5o |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Heavy metals (as Pb) |
Not more than 10 mg/kg |
| Oxalates |
Not more than 100 mg/kg expressed as oxalic acid, after drying |
| B. |
Positive test for tartrate |
| Synonyms |
Monosodium salt of L-(+)-tartaric acid |
| Definition |
|
| Chemical name |
Monosodium salt of L-2,3-dihydroxybutanedioic acid |
| Monohydrated monosodium salt of L-(+)-tartaric acid |
| Chemical formula |
C4H5O6Na· H2O |
| Molecular weight |
194,05 |
| Assay |
Content not less than 99 % on the anhydrous basis |
| Description |
Transparent colourless crystals |
| Identification |
|
| A.Positive tests for tartrate and for sodium |
A. |
Positive tests for tartrate and for sodium |
|
| A. |
Positive tests for tartrate and for sodium |
| Purity |
|
| Loss on drying |
Not more than 10,0 % determined by drying at 105oC for four hours |
| Oxalates |
Not more than 100 mg/kg expressed as oxalic acid, after drying |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Heavy metals (as Pb) |
Not more than 10 mg/kg |
| A. |
Positive tests for tartrate and for sodium |
| Definition |
|
| Chemical name |
Disodium L-tartrate |
| Disodium (+)-tartrate |
| Disodium (+)-2,3-dihydroxybutanedioic acid |
| Dihydrated disodium salt of L-(+)-tartaric acid |
| Einecs |
212-773-3 |
| Chemical formula |
C4H4O6Na2·2H2O |
| Molecular weight |
230,8 |
| Assay |
Content not less than 99 % on the anhydrous basis |
| Description |
Transparent, colourless crystals |
| Identification |
|
| A.Positive tests for tartrate and for sodium |
A. |
Positive tests for tartrate and for sodium |
|
| A. |
Positive tests for tartrate and for sodium |
| B.Solubility tests |
B. |
Solubility tests |
1 gram is insoluble in 3 ml of water. Insoluble in ethanol |
| B. |
Solubility tests |
| Purity |
|
| Loss on drying |
Not more than 17,0 % determined by drying at 150oC for four hours |
| Oxalates |
Not more than 100 mg/kg expressed as oxalic acid, after drying |
| pH of a 1 % aqueous solution |
Between 7,0 and 7,5 |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Heavy metals (as Pb) |
Not more than 10 mg/kg |
| A. |
Positive tests for tartrate and for sodium |
| Synonyms |
Monobasic potassium tartrate |
| Definition |
|
| Chemical name |
Anhydrous monopotassium salt of L-(+)-tartaric acid |
| Monopotassium salt of L-2,3-dihydroxybutanedioic acid |
| Chemical formula |
C4H5O6K |
| Molecular weight |
188,16 |
| Assay |
Content not less than 98 % on the anhydrous basis |
| Description |
White crystalline or granulated powder |
| Identification |
|
| A.Positive tests for tartrate and for potassium |
A. |
Positive tests for tartrate and for potassium |
|
| A. |
Positive tests for tartrate and for potassium |
| B.Melting point |
B. |
Melting point |
230oC |
| B. |
Melting point |
| Purity |
|
| pH of a 1 % aqueous solution |
3,4 |
| Loss on drying |
Not more than 1,0 % determined by drying at 105oC for four hours |
| Oxalates |
Not more than 100 mg/kg expressed as oxalic acid, after drying |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Heavy metals (as Pb) |
Not more than 10 mg/kg |
| A. |
Positive tests for tartrate and for potassium |
| Synonyms |
Dibasic potassium tartrate |
| Definition |
|
| Chemical name |
Dipotassium salt of L-2,3-dihydroxybutanedioic acid |
| Dipotassium salt with half a molecule of water of L-(+)-tartaric acid |
| Einecs |
213-067-8 |
| Chemical formula |
C4H4O6K2·1/2H2O |
| Molecular weight |
235,2 |
| Assay |
Content not less than 99 % on the anhydrous basis |
| Description |
White crystalline or granulated powder |
| Identification |
|
| A.Positive tests for tartrate and for potassium |
A. |
Positive tests for tartrate and for potassium |
|
| A. |
Positive tests for tartrate and for potassium |
| Purity |
|
| pH of a 1 % aqueous solution |
Between 7,0 and 9,0 |
| Loss on drying |
Not more than 4,0 % determined by drying at 150oC for four hours |
| Oxalates |
Not more than 100 mg/kg expressed as oxalic acid, after drying |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Heavy metals (as Pb) |
Not more than 10 mg/kg |
| A. |
Positive tests for tartrate and for potassium |
| Synonyms |
Potassium sodium L-(+)-tartrate |
| Rochelle salt |
| Seignette salt |
| Definition |
|
| Chemical name |
Potassium sodium salt of L-2,3-dihydroxybutanedioic acid |
| Potassium sodium L-(+)-tartrate |
| Einecs |
206-156-8 |
| Chemical formula |
C4H4O6KNa· 4H2O |
| Molecular weight |
282,23 |
| Assay |
Content not less than 99 % on the anhydrous basis |
| Description |
Colourless crystals or white crystalline powder |
| Identification |
|
| A.Positive tests for tartrate, for potassium and for sodium |
A. |
Positive tests for tartrate, for potassium and for sodium |
|
| A. |
Positive tests for tartrate, for potassium and for sodium |
| B.Solubility tests |
B. |
Solubility tests |
1 gram is soluble in 1 ml of water, insoluble in ethanol |
| B. |
Solubility tests |
| C.Melting range |
C. |
Melting range |
Between 70 and 80oC |
| C. |
Melting range |
| Purity |
|
| Loss on drying |
Not more than 26,0 % and not less than 21,0 % determined by drying at 150oC for three hours |
| Oxalates |
Not more than 100 mg/kg expressed as oxalic acid, after drying |
| pH of 1 % aqueous solution |
Between 6,5 and 8,5 |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Heavy metals (as Pb) |
Not more than 10 mg/kg |
| A. |
Positive tests for tartrate, for potassium and for sodium |
| Synonyms |
Orthophosphoric acid |
| Monophosphoric acid |
| Definition |
|
| Chemical name |
Phosphoric acid |
| Einecs |
231-633-2 |
| Chemical formula |
H3PO4 |
| Molecular weight |
98,00 |
| Assay |
Phosphoric acid is commercially available as an aqueous solution at variable concentrations. Content not less than 67,0 % and not more than 85,7 %. |
| Description |
Clear, colourless, viscous liquid |
| Identification |
|
| A.Positive tests for acid and for phosphate |
A. |
Positive tests for acid and for phosphate |
|
| A. |
Positive tests for acid and for phosphate |
| Purity |
|
| Volatile acids |
Not more than 10 mg/kg (as acetic acid) |
| Chlorides |
Not more than 200 mg/kg (expressed as chlorine) |
| Nitrates |
Not more than 5 mg/kg (as NaNO3) |
| Sulphates |
Not more than 1 500 mg/kg (as CaSO4) |
| Fluoride |
Not more than 10 mg/kg (expressed as fluorine) |
| Arsenic |
Not more than 3 mg/kg |
| Cadmium |
Not more than 1 mg/kg |
| Lead |
Not more than 4 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Note:This specification refers to a 75 % aqueous solution |
|
| A. |
Positive tests for acid and for phosphate |
| Synonyms |
Monosodium monophosphate |
| Acid monosodium monophosphate |
| Monosodium orthophosphate |
| Monobasic sodium phosphate |
| Sodium dihydrogen monophosphate |
| Definition |
|
| Chemical name |
Sodium dihydrogen monophosphate |
| Einecs |
231-449-2 |
| Chemical formula |
Anhydrous: NaH2PO4 |
| Monohydrate: NaH2PO4· H2O |
| Dihydrate: NaH2PO4· 2H2O |
| Molecular weight |
Anhydrous: 119,98 |
| Monohydrate: 138,00 |
| Dihydrate: 156,01 |
| Assay |
After drying at 60oC for one hour and then at 105oC for four hours, contains not less than 97 % of NaH2PO4 |
| P2O5content |
Between 58,0 % and 60,0 % on the anhydrous basis |
| Description |
A white odourless, slightly deliquescent powder, crystals or granules |
| Identification |
|
| A.Positive tests for sodium and for phosphate |
A. |
Positive tests for sodium and for phosphate |
|
| A. |
Positive tests for sodium and for phosphate |
| B.Solubility |
B. |
Solubility |
Freely soluble in water. Insoluble in ethanol or ether |
| B. |
Solubility |
| C.pH of a 1 % solution |
C. |
pH of a 1 % solution |
Between 4,1 and 5,0 |
| C. |
pH of a 1 % solution |
| Purity |
|
| Loss on drying |
The anhydrous salt loses not more than 2,0 %, the monohydrate not more than 15,0 %, and the dihydrate not more than 25 % when dried first at 60oC for one hour, then at 105oC for four hours |
| Water-insoluble substances |
Not more than 0,2 % on the anhydrous basis |
| Fluoride |
Not more than 10 mg/kg (expressed as fluorine) |
| Arsenic |
Not more than 3 mg/kg |
| Cadmium |
Not more than 1 mg/kg |
| Lead |
Not more than 4 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| A. |
Positive tests for sodium and for phosphate |
| Synonyms |
Disodium monophosphate |
| Secondary sodium phosphate |
| Disodium orthophosphate |
| Acid disodium phosphate |
| Definition |
|
| Chemical name |
Disodium hydrogen monophosphate |
| Disodium hydrogen orthophosphate |
| Einecs |
231-448-7 |
| Chemical formula |
Anhydrous: Na2HPO4 |
| Hydrat: Na2HPO4· nH2O (n = 2,7 or 12) |
| Molecular weight |
141,98 (anhydrous) |
| Assay |
After drying at 40oC for three hours and subsequently at 105oC for five hours, contains not less than 98 % of Na2HPO4 |
| P2O5content |
Between 49 % and 51 % on the anhydrous basis |
| Description |
Anhydrous disodium hydrogen phosphate is a white, hygroscopic, odourless powder. Hydrated forms available include the dihydrate: a white crystalline, odourless solid; the heptahydrate: white, odourless, efflorescent crystals or granular powder; and the dodecahydrate: white, efflorescent, odourless powder or crystals |
| Identification |
|
| A.Positive tests for sodium and for phosphate |
A. |
Positive tests for sodium and for phosphate |
|
| A. |
Positive tests for sodium and for phosphate |
| B.Solubility |
B. |
Solubility |
Freely soluble in water. Insoluble in ethanol |
| B. |
Solubility |
| C.pH of a 1 % solution |
C. |
pH of a 1 % solution |
Between 8,4 and 9,6 |
| C. |
pH of a 1 % solution |
| Purity |
|
| Loss on drying |
When dried at 40oC for three hours and then at 105oC for five hours, the losses in weight are as follows: anhydrous not more than 5,0 %, dihydrate not more than 22,0 %, heptahydrate not more than 50,0 %, dodecahydrate not more than 61,0 % |
| Water-insoluble substances |
Not more than 0,2 % on the anhydrous basis |
| Fluoride |
Not more than 10 mg/kg (expressed as fluorine) |
| Arsenic |
Not more than 3 mg/kg |
| Cadmium |
Not more than 1 mg/kg |
| Lead |
Not more than 4 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| A. |
Positive tests for sodium and for phosphate |
| Synonyms |
Sodium phosphate |
| Tribasic sodium phosphate |
| Trisodium orthophosphate |
| Definition |
Trisodium phosphate is obtained from aqueous solutions and crystallises in the anhydrous form and with 1/2, 1, 6, 8 or 12 H2O. The dodecahydrate always crystallises from aqueous solutions with an excess of sodium hydroxide. It contains 1/4 molecule of NaOH |
| Chemical name |
Trisodium monophosphate |
| Trisodium phosphate |
| Trisodium orthophosphate |
| Einecs |
231-509-8 |
| Chemical formula |
Anhydrous: Na3PO4 |
| Hydrated: Na3PO4· nH2O (n = 1/2, 1, 6, 8, or 12) |
| Molecular weight |
163,94 (anhydrous) |
| Assay |
Sodium phosphate anhydrous and the hydrated forms, with the exception of the dodecahydrate, contain not less than 97,0 % of Na3PO4calculated on the dried basis. Sodium phosphate dodecahydrate contains not less than 92,0 % of Na3PO4calculated on the ignited basis |
| P2O5content |
Between 40,5 % and 43,5 % on the anhydrous basis |
| Description |
White odourless crystals, granules or crystalline powder |
| Identification |
|
| A.Positive tests for sodium and for phosphate |
A. |
Positive tests for sodium and for phosphate |
|
| A. |
Positive tests for sodium and for phosphate |
| B.Solubility |
B. |
Solubility |
Freely soluble in water. Insoluble in ethanol |
| B. |
Solubility |
| C.pH of a 1 % solution |
C. |
pH of a 1 % solution |
Between 11,5 and 12,5 |
| C. |
pH of a 1 % solution |
| Purity |
|
| Loss on ignition |
When dried at 120oC for two hours and then ignited at about 800oC for 30 minutes, the losses in weight are as follows: anhydrous not more than 2,0 %, monohydrate not more than 11,0 %, dodecahydrate: between 45,0 % and 58,0 % |
| Water insoluble substances |
Not more than 0,2 % on the anhydrous basis |
| Fluoride |
Not more than 10 mg/kg (expressed as fluorine) |
| Arsenic |
Not more than 3 mg/kg |
| Cadmium |
Not more than 1 mg/kg |
| Lead |
Not more than 4 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| A. |
Positive tests for sodium and for phosphate |
| Synonyms |
Monobasic potassium phosphate |
| Monopotassium monophosphate |
| Potassium orthophosphate |
| Definition |
|
| Chemical name |
Potassium dihydrogen phosphate |
| Monopotassium dihydrogen orthophosphate |
| Monopotassium dihydrogen monophosphate |
| Einecs |
231-913-4 |
| Chemical formula |
KH2PO4 |
| Molecular weight |
136,09 |
| Assay |
Content not less than 98,0 % after drying at 105oC for four hours |
| P2O5content |
Between 51,0 % and 53,0 % on the anhydrous basis |
| Description |
Odourless, colourless crystals or white granular or crystalline powder, hygroscopic |
| Identification |
|
| A.Positive tests for potassium and for phosphate |
A. |
Positive tests for potassium and for phosphate |
|
| A. |
Positive tests for potassium and for phosphate |
| B.Solubility |
B. |
Solubility |
Freely soluble in water. Insoluble in ethanol |
| B. |
Solubility |
| C.pH of a 1 % solution |
C. |
pH of a 1 % solution |
Between 4,2 and 4,8 |
| C. |
pH of a 1 % solution |
| Purity |
|
| Loss on drying |
Not more than 2,0 % determined by drying at 105oC for four hours |
| Water-insoluble substances |
Not more than 0,2 % on the anhydrous basis |
| Fluoride |
Not more than 10 mg/kg (expressed as fluorine) |
| Arsenic |
Not more than 3 mg/kg |
| Cadmium |
Not more than 1 mg/kg |
| Lead |
Not more than 4 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| A. |
Positive tests for potassium and for phosphate |
| Synonyms |
Dipotassium monophosphate |
| Secondary potassium phosphate |
| Dipotassium acid phosphate |
| Dipotassium orthophosphate |
| Dibasic potassium phosphate |
| Definition |
|
| Chemical name |
Dipotassium hydrogen monophosphate |
| Dipotassium hydrogen phosphate |
| Dipotassium hydrogen orthophosphate |
| Einecs |
231-834-5 |
| Chemical formula |
K2HPO4 |
| Molecular weight |
174,18 |
| Assay |
Content not less than 98 % after drying at 105oC for four hours |
| P2O5content |
Between 40,3 % and 41,5 % on the anhydrous basis |
| Description |
Colourless or white granular powder, crystals or masses; deliquescent substance |
| Identification |
|
| A.Positive tests for potassium and for phosphate |
A. |
Positive tests for potassium and for phosphate |
|
| A. |
Positive tests for potassium and for phosphate |
| B.Solubility |
B. |
Solubility |
Freely soluble in water. Insoluble in ethanol |
| B. |
Solubility |
| C.pH of a 1 % solution |
C. |
pH of a 1 % solution |
Between 8,7 and 9,4 |
| C. |
pH of a 1 % solution |
| Purity |
|
| Loss on drying |
Not more than 2,0 % determined by drying at 105oC for four hours |
| Water-insoluble substances |
Not more than 0,2 % on the anhydrous basis |
| Fluoride |
Not more than 10 mg/kg (expressed as fluorine) |
| Arsenic |
Not more than 3 mg/kg |
| Cadmium |
Not more than 1 mg/kg |
| Lead |
Not more than 4 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| A. |
Positive tests for potassium and for phosphate |
| Synonyms |
Potassium phosphate |
| Tribasic potassium phosphate |
| Tripotassium orthophosphate |
| Definition |
|
| Chemical name |
Tripotassium monophosphate |
| Tripotassium phosphate |
| Tripotassium orthophosphate |
| Einecs |
231-907-1 |
| Chemical formula |
Anhydrous: K3PO4 |
| Hydrated: K3PO4· nH2O (n = 1 or 3) |
| Molecular weight |
212,27 (anhydrous) |
| Assay |
Content not less than 97 % calculated on the ignited basis |
| P2O5content |
Between 30,5 % and 33,0 % on the ignited basis |
| Description |
Colourless or white, odourless hygroscopic crystals or granules. Hydrated forms available include the monohydrate and trihydrate |
| Identification |
|
| A.Positive tests for potassium and for phosphate |
A. |
Positive tests for potassium and for phosphate |
|
| A. |
Positive tests for potassium and for phosphate |
| B.Solubility |
B. |
Solubility |
Freely soluble in water. Insoluble in ethanol |
| B. |
Solubility |
| C.pH of a 1 % solution |
C. |
pH of a 1 % solution |
Between 11,5 and 12,3 |
| C. |
pH of a 1 % solution |
| Purity |
|
| Loss on ignition |
Anhydrous: not more than 3,0 %; hydrated: not more than 23,0 %. Determined by drying at 105oC for one hour and then ignite at about 800oC ± 25oC for 30 minutes |
| Water insoluble substances |
Not more than 0,2 % on the anhydrous basis |
| Fluoride |
Not more than 10 mg/kg (expressed as fluorine) |
| Arsenic |
Not more than 3 mg/kg |
| Cadmium |
Not more than 1 mg/kg |
| Lead |
Not more than 4 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| A. |
Positive tests for potassium and for phosphate |
| Synonyms |
Monobasic calcium phosphate |
| Monocalcium orthophosphate |
| Definition |
|
| Chemical name |
Calcium dihydrogen phosphate |
| Einecs |
231-837-1 |
| Chemical formula |
Anhydrous: Ca(H2PO4)2 |
| Monohydrate: Ca(H2PO4)2· H2O |
| Molecular weight |
234,05 (anhydrous) |
| 252,08 (monohydrate) |
| Assay |
Content not less than 95 % on the dried basis |
| P2O5content |
Between 55,5 % and 61,1 % on the anhydrous basis |
| Description |
Granular powder or white, deliquescent crystals or granules |
| Identification |
|
| A.Positive tests for calcium and for phosphate |
A. |
Positive tests for calcium and for phosphate |
|
| A. |
Positive tests for calcium and for phosphate |
| B.CaO content |
B. |
CaO content |
Between 23,0 % and 27,5 % (anhydrous) |
| B. |
CaO content |
| Between 19,0 % and 24,8 % (monohydrate) |
| Purity |
|
| Loss on drying |
Not more than 14 % determined by drying at 105oC for four hours (anhydrous) |
| Not more than 17,5 % determined by drying at 60oC for one hour, then at 105oC for four hours (monohydrate) |
| Loss on ignition |
Not more than 17,5 % after ignition at 800oC ± 25oC for 30 minutes (anhydrous) |
| Not more than 25,0 % determined by drying at 105oC for one hour, then ignite at 800oC ± 25oC for 30 minutes (monohydrate) |
| Fluoride |
Not more than 30 mg/kg (expressed as fluorine) |
| Arsenic |
Not more than 3 mg/kg |
| Cadmium |
Not more than 1 mg/kg |
| Lead |
Not more than 4 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| A. |
Positive tests for calcium and for phosphate |
| Synonyms |
Dibasic calcium phosphate |
| Dicalcium orthophosphate |
| Definition |
|
| Chemical name |
Calcium monohydrogen phosphate |
| Calcium hydrogen orthophosphate |
| Secondary calcium phosphate |
| Einecs |
231-826-1 |
| Chemical formula |
Anhydrous: CaHPO4 |
| Dihydrate: CaHPO4· 2H2O |
| Molecular weight |
136,06 (anhydrous) |
| 172,09 (dihydrate) |
| Assay |
Dicalcium phosphate, after drying at 200oC for three hours, contains not less than 98 % and not more than the equivalent of 102 % of CaHPO4 |
| P2O5content |
Between 50,0 % and 52,5 % on the anhydrous basis |
| Description |
White crystals or granules, granular powder or powder |
| Identification |
|
| A.Positive tests for calcium and for phosphate |
A. |
Positive tests for calcium and for phosphate |
|
| A. |
Positive tests for calcium and for phosphate |
| B.Solubility tests |
B. |
Solubility tests |
Sparingly soluble in water. Insoluble in ethanol |
| B. |
Solubility tests |
| Purity |
|
| Loss on ignition |
Not more than 8,5 % (anhydrous), or 26,5 % (dihydrate) after ignition at 800oC ± 25oC for 30 minutes |
| Fluoride |
Not more than 50 mg/kg (expressed as fluorine) |
| Arsenic |
Not more than 3 mg/kg |
| Cadmium |
Not more than 1 mg/kg |
| Lead |
Not more than 4 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| A. |
Positive tests for calcium and for phosphate |
| Synonyms |
Calcium phosphate, tribasic |
| Calcium orthophosphate |
| Pentacalcium hydroxy monophosphate |
| Calcium hydroxyapatite |
| Definition |
Tricalcium phosphate consists of a variable mixture of calcium phosphates obtained from neutralisation of phosphoric acid with calcium hydroxide and having the approximate composition of 10CaO · 3P2O5· H2O |
| Chemical name |
Pentacalcium hydroxy monophosphate |
| Tricalcium monophosphate |
| Einecs |
235-330-6 (Pentacalcium hydroxy monophosphate) |
| 231-840-8 (Calcium orthophosphate) |
| Chemical formula |
Ca5(PO4)3· OH or Ca3(PO4)2 |
| Molecular weight |
502 or 310 |
| Assay |
Content not less than 90 % calculated on the ignited basis |
| P2O5 content |
Between 38,5 % and 48,0 % on the anhydrous basis |
| Description |
A white, odourless powder which is stable in air |
| Identification |
|
| A.Positive tests for calcium and for phosphate |
A. |
Positive tests for calcium and for phosphate |
|
| A. |
Positive tests for calcium and for phosphate |
| B.Solubility |
B. |
Solubility |
Practically insoluble in water; insoluble in ethanol soluble in dilute hydrochloric and nitric acid |
| B. |
Solubility |
| Purity |
|
| Loss on ignition |
Not more than 8 % after ignition at 800oC ± 25oC, to constant weight |
| Fluoride |
Not more than 50 mg/kg (expressed as fluorine) |
| Arsenic |
Not more than 3 mg/kg |
| Cadmium |
Not more than 1 mg/kg |
| Lead |
Not more than 4 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| A. |
Positive tests for calcium and for phosphate |
| Synonyms |
Magnesiumdihydrogenphosphate |
| Magnesiumphosphate, monobasic |
| Monomagnesium orthophosphate |
| Definition |
|
| Chemical name |
Monomagnesiumdihydrogenmonophosphate |
| Einecs |
236-004-6 |
| Chemical formula |
Mg(H2PO4)2· nH2O (where n = 0 to 4) |
| Molecular weight |
218,30 (anhydrous) |
| Assay |
Not less than 51,0 % after ignition |
| Description |
White, odourless, crystalline powder, slightly soluble in water |
| Identification |
|
| A.Positive test for magnesium and for phosphate |
A. |
Positive test for magnesium and for phosphate |
|
| A. |
Positive test for magnesium and for phosphate |
| B.MgO content |
B. |
MgO content |
Not less than 21,5 % after ignition |
| B. |
MgO content |
| Purity |
|
| Fluoride |
Not more than 10 mg/kg (as fluorine) |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 4 mg/kg |
| Cadmium |
Not more than 1 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| A. |
Positive test for magnesium and for phosphate |
| Synonyms |
Magnesiumhydrogenphosphate |
| Magnesiumphosphate, dibasic |
| Dimagnesium orthophosphate |
| Secondary magnesiumphosphate |
| Definition |
|
| Chemical name |
Dimagnesiummonohydrogenmonophosphate |
| Einecs |
231-823-5 |
| Chemical formula |
MgHPO4· nH2O (where n = 0-3) |
| Molecular weight |
120,30 (anhydrous) |
| Assay |
Not less than 96 % after ignition |
| Description |
White, odourless, crystalline powder, slightly soluble in water |
| Identification |
|
| A.Positive test for magnesium and for phosphate |
A. |
Positive test for magnesium and for phosphate |
|
| A. |
Positive test for magnesium and for phosphate |
| B.MgO content: |
B. |
MgO content: |
Not less than 33,0 % calculated on an anhydrous basis |
| B. |
MgO content: |
| Purity |
|
| Fluoride |
Not more than 10 mg/kg (as fluorine) |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 4 mg/kg |
| Cadmium |
Not more than 1 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| A. |
Positive test for magnesium and for phosphate |
| Synonyms |
Sodium salt of malic acid |
| Definition |
|
| Chemical name |
Disodium DL-malate, disodium salt of hydroxybutanedioic acid |
| Chemical formula |
Hemihydrate: C4H4Na2O5· 1/2 H2O |
| Trihydrate: C4H4Na2O5· 3H2O |
| Molecular weight |
Hemihydrate: 187,05 |
| Trihydrate: 232,10 |
| Assay |
Content not less than 98,0 % on the anhydrous basis |
| Description |
White crystalline powder or lumps |
| Identification |
|
| A.Positive tests for 1,2-dicarboxylic acid and for sodium |
A. |
Positive tests for 1,2-dicarboxylic acid and for sodium |
|
| A. |
Positive tests for 1,2-dicarboxylic acid and for sodium |
| B.Azo dye formation |
B. |
Azo dye formation |
Positive |
| B. |
Azo dye formation |
| C.Solubility |
C. |
Solubility |
Freely soluble in water |
| C. |
Solubility |
| Purity |
|
| Loss on drying |
Not more than 7,0 % (130oC, 4h) for the hemihydrate, or 20,5 %-23,5 % (130oC, 4h) for the trihydrate |
| Alkalinity |
Not more than 0,2 % as Na2CO3 |
| Fumaric acid |
Not more than 1,0 % |
| Maleic acid |
Not more than 0,05 % |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| A. |
Positive tests for 1,2-dicarboxylic acid and for sodium |
| Synonyms |
Monosodium salt of DL-malic acid |
| Definition |
|
| Chemical name |
Monosodium DL-malate, monosodium 2-DL-hydroxy succinate |
| Chemical formula |
C4H5NaO5 |
| Molecular weight |
156,07 |
| Assay |
Content not less than 99,0 % on the anhydrous basis |
| Description |
White powder |
| Identification |
|
| A.Positive tests for 1,2-dicarboxylic acid and for sodium |
A. |
Positive tests for 1,2-dicarboxylic acid and for sodium |
|
| A. |
Positive tests for 1,2-dicarboxylic acid and for sodium |
| B.Azo dye formation |
B. |
Azo dye formation |
Positive |
| B. |
Azo dye formation |
| Purity |
|
| Loss on drying |
Not more than 2,0 % (110oC, 3h) |
| Maleic acid |
Not more than 0,05 % |
| Fumaric acid |
Not more than 1,0 % |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| A. |
Positive tests for 1,2-dicarboxylic acid and for sodium |
| Synonyms |
Potassium salt of malic acid |
| Definition |
|
| Chemical name |
Dipotassium DL-malate, dipotassium salt of hydroxybutanedioic acid |
| Chemical formula |
C4H4K2O5 |
| Molecular weight |
210,27 |
| Assay |
Content not less than 59,5 % |
| Description |
Colourless or almost colourless aqueous solution |
| Identification |
|
| A.Positive tests for 1,2-dicarboxylic acid and for potassium |
A. |
Positive tests for 1,2-dicarboxylic acid and for potassium |
|
| A. |
Positive tests for 1,2-dicarboxylic acid and for potassium |
| B.Azo dye formation |
B. |
Azo dye formation |
Positive |
| B. |
Azo dye formation |
| Purity |
|
| Alkalinity |
Not more than 0,2 % as K2CO3 |
| Fumaric acid |
Not more than 1,0 % |
| Maleic acid |
Not more than 0,05 % |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| A. |
Positive tests for 1,2-dicarboxylic acid and for potassium |
| Synonyms |
Calcium salt of malic acid |
| Definition |
|
| Chemical name |
Calcium DL-malate, calcium-α-hydroxysuccinate, calcium salt of hydroxybutanedioic acid |
| Chemical formula |
C4H5CaO5 |
| Molecular weight |
172,14 |
| Assay |
Content not less than 97,5 % on the anhydrous basis |
| Description |
White powder |
| Identification |
|
| A.Positive tests for malate, 1,2-dicarboxylic acid and for calcium |
A. |
Positive tests for malate, 1,2-dicarboxylic acid and for calcium |
|
| A. |
Positive tests for malate, 1,2-dicarboxylic acid and for calcium |
| B.Azo dye formation |
B. |
Azo dye formation |
Positive |
| B. |
Azo dye formation |
| C.Solubility |
C. |
Solubility |
Slightly soluble in water |
| C. |
Solubility |
| Purity |
|
| Loss on drying |
Not more than 2 % (100oC, 3h) |
| Alkalinity |
Not more than 0,2 % as CaCO3 |
| Maleic acid |
Not more than 0,05 % |
| Fumaric acid |
Not more than 1,0 % |
| Fluoride |
Not more than 30 mg/kg |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| A. |
Positive tests for malate, 1,2-dicarboxylic acid and for calcium |
| Synonyms |
Monocalcium salt of DL-malic acid |
| Definition |
|
| Chemical name |
Monocalcium DL-malate, monocalcium 2-DL-hydroxysuccinate |
| Chemical formula |
(C4H5O5)2Ca |
| Assay |
Content not less than 97,5 % on the anhydrous basis |
| Description |
White powder |
| Identification |
|
| A.Positive tests for 1,2-dicarboxylic acid and for calcium |
A. |
Positive tests for 1,2-dicarboxylic acid and for calcium |
|
| A. |
Positive tests for 1,2-dicarboxylic acid and for calcium |
| B.Azo dye formation |
B. |
Azo dye formation |
Positive |
| B. |
Azo dye formation |
| Purity |
|
| Loss on drying |
Not more than 2,0 % (110oC, 3h) |
| Maleic acid |
Not more than 0,05 % |
| Fumaric acid |
Not more than 1,0 % |
| Fluoride |
Not more than 30 mg/kg |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| A. |
Positive tests for 1,2-dicarboxylic acid and for calcium |
| Synonyms |
Ditartaric acid |
| Definition |
|
| Chemical name |
Metatartaric acid |
| Chemical formula |
C4H6O6 |
| Assay |
Not less than 99,5 % |
| Description |
Crystalline or powder form with a white or yellowish colour. Very deliquescent with a faint odour of caramel |
| Identification |
|
| A. |
Very soluble in water and ethanol |
| B. |
Place a sample of 1 to 10 mg of this substance in a test tube with 2 ml of concentrated sulfuric acid and 2 drops of sulpho-resorcinol reagent. When heated to 150oC, an intense violet coloration appears |
| Purity |
|
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Synonyms |
L-Calcium tartrate |
| Definition |
|
| Chemical name |
Calcium L(+)-2,3-dihydroxybutanedioate di-hydrate |
| Chemical formula |
C4H4CaO6· 2H2O |
| Molecular weight |
224,18 |
| Assay |
Not less than 98,0 % |
| Description |
Fine crystalline powder with a white or off-white colour |
| Identification |
|
| A.Slightly soluble in water. Solubility approximately 0,01 g/100 ml water (20oC). Sparingly soluble in ethanol. Slightly soluble in diethyl ether. Soluble in acids |
A. |
Slightly soluble in water. Solubility approximately 0,01 g/100 ml water (20oC). Sparingly soluble in ethanol. Slightly soluble in diethyl ether. Soluble in acids |
|
| A. |
Slightly soluble in water. Solubility approximately 0,01 g/100 ml water (20oC). Sparingly soluble in ethanol. Slightly soluble in diethyl ether. Soluble in acids |
| B.Specific rotation [α]20D |
B. |
Specific rotation [α]20D |
+7,0oto +7,4o(0,1 % in a 1N de HCl solution) |
| B. |
Specific rotation [α]20D |
| C.pH of a 5 % slurry |
C. |
pH of a 5 % slurry |
Between 6,0 and 9,0 |
| C. |
pH of a 5 % slurry |
| Purity |
|
| Sulphates (as H2SO4) |
Not more than 1 g/kg |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| A. |
Slightly soluble in water. Solubility approximately 0,01 g/100 ml water (20oC). Sparingly soluble in ethanol. Slightly soluble in diethyl ether. Soluble in acids |
| B. |
Specific rotation [α]20D |
| Definition |
|
| Chemical name |
Hexanedioic acid, 1,4-butanedicarboxylic acid |
| Einecs |
204-673-3 |
| Chemical formula |
C6H10O4 |
| Molecular weight |
146,14 |
| Assay |
Content not less than 99,6 % |
| Description |
White odourless crystals or crystalline powder |
| Identification |
|
| A.Melting range |
A. |
Melting range |
151,5oC-154,0oC |
| A. |
Melting range |
| B.Solubility |
B. |
Solubility |
Slightly soluble in water. Freely soluble in ethanol |
| B. |
Solubility |
| Purity |
|
| Water |
Not more than 0,2 % (Karl Fischer method) |
| Sulphated ash |
Not more than 20 mg/kg |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Definition |
|
| Chemical name |
Sodium adipate |
| Einecs |
231-293-5 |
| Chemical formula |
C6H8Na2O4 |
| Molecular weight |
190,11 |
| Assay |
Content not less than 99,0 % (on anhydrous basis) |
| Description |
White odourless crystals or crystalline powder |
| Identification |
|
| A.Melting range |
A. |
Melting range |
151oC-152oC (for adipic acid) |
| A. |
Melting range |
| B.Solubility |
B. |
Solubility |
Approximately 50 g/100 ml water (20oC) |
| B. |
Solubility |
| C.Positive test for sodium |
C. |
Positive test for sodium |
|
| C. |
Positive test for sodium |
| Purity |
|
| Water |
Not more than 3 % (Karl Fischer) |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| C. |
Positive test for sodium |
| Definition |
|
| Chemical name |
Potassium adipate |
| Einecs |
242-838-1 |
| Chemical formula |
C6H8K2O4 |
| Molecular weight |
222,32 |
| Assay |
Content not less than 99,0 % (on anhydrous basis) |
| Description |
White odourless crystals or crystalline powder |
| Identification |
|
| A.Melting range |
A. |
Melting range |
151oC-152oC (for adipic acid) |
| A. |
Melting range |
| B.Solubility |
B. |
Solubility |
Approximately 60 g/100 ml water (20oC) |
| B. |
Solubility |
| C.Positive test for potassium |
C. |
Positive test for potassium |
|
| C. |
Positive test for potassium |
| Purity |
|
| Water |
Not more than 3 % (Karl Fischer) |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| C. |
Positive test for potassium |
| Definition |
|
| Chemical name |
Butanedioic acid |
| Einecs |
203-740-4 |
| Chemical formula |
C4H6O4 |
| Molecular weight |
118,09 |
| Assay |
Content no less than 99,0 % |
| Description |
Colourless or white, odourless crystals |
| Identification |
|
| A.Melting range |
A. |
Melting range |
Between 185,0oC and 190,0oC |
| A. |
Melting range |
| Purity |
|
| Residue on ignition |
Not more than 0,025 % (800oC, 15 min) |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Synonyms |
Tribasic ammonium citrate |
| Definition |
|
| Chemical name |
Triammonium salt of 2-hydroxypropan-1,2,3-tricarboxylic acid |
| Einecs |
222-394-5 |
| Chemical formula |
C6H17N3O7 |
| Molecular weight |
243,22 |
| Assay |
Content not less than 97,0 % |
| Description |
White to off-white crystals or powder |
| Identification |
|
| A.Positive tests for ammonium and for citrate |
A. |
Positive tests for ammonium and for citrate |
|
| A. |
Positive tests for ammonium and for citrate |
| B.Solubility |
B. |
Solubility |
Freely soluble in water |
| B. |
Solubility |
| Purity |
|
| Oxalate |
Not more than 0,04 % (as oxalic acid) |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| A. |
Positive tests for ammonium and for citrate |
| Synonyms |
Calcium disodium EDTA |
| Calcium disodium edetate |
| Definition |
|
| Chemical name |
N, N′-1,2-Ethanediylbis [N-(carboxymethyl)-glycinate] [(4-)-O,O′,ON,ON]calciate(2)-disodium |
| Calcium disodium ethylenediaminetetra acetate Calcium disodium (ethylenedinitrilo)tetra acetate |
| Einecs |
200-529-9 |
| Chemical formula |
C10H12O8CaN2Na2·2H2O |
| Molecular weight |
410,31 |
| Assay |
Content not less than 97 % on the anhydrous basis |
| Description |
White, odourless crystalline granules or white to nearly white powder, slightly hygroscopic |
| Identification |
|
| A.Positive tests for sodium and for calcium |
A. |
Positive tests for sodium and for calcium |
|
| A. |
Positive tests for sodium and for calcium |
| B.Chelating activity to metal ions positive |
B. |
Chelating activity to metal ions positive |
|
| B. |
Chelating activity to metal ions positive |
| C.pH of a 1 % solution between 6,5 and 7,5 |
C. |
pH of a 1 % solution between 6,5 and 7,5 |
|
| C. |
pH of a 1 % solution between 6,5 and 7,5 |
| Purity |
|
| Water content |
5 to 13 % (Karl Fischer method) |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Heavy metals (as Pb) |
Not more than 10 mg/kg |
| A. |
Positive tests for sodium and for calcium |
| B. |
Chelating activity to metal ions positive |
| C. |
pH of a 1 % solution between 6,5 and 7,5 |
| Definition |
Linear glycuronoglycan consisting mainly of β-(1-4) linked D-mannuronic and α-(1-4) linked L-guluronic acid units in pyranose ring form. Hydrophilic colloidal carbohydrate extracted by the use of dilute alkali from natural strains of various species of brown seaweeds (Phaeophyceae) |
| Einecs |
232-680-1 |
| Chemical formula |
(C6H8O6)n |
| Molecular weight |
10 000 -600 000 (typical average) |
| Assay |
Alginic acid yields, on the anhydrous basis, not less than 20 % and not more than 23 % of carbon dioxide (CO2), equivalent to not less than 91 % and not more than 104,5 % of alginic acid (C6H8O6)n(calculted on equivalent weight basis of 200) |
| Description |
Alginic acid occurs in filamentous, grainy, granular and powdered forms. It is a white to yellowish brown and nearly odourless |
| Identification |
|
| A.Solubility |
A. |
Solubility |
Insoluble in water and organic solvents, slowly soluble in solutions of sodium carbonate, sodium hydroxide and trisodium phosphate |
| A. |
Solubility |
| B.Calcium chloride precipitation test |
B. |
Calcium chloride precipitation test |
To a 0,5 % solution of the sample in 1 M sodium hydroxide solution, add one fifth of its volume of a 2,5 % solution of calcium chloride. A voluminous, gelatinous precipitate is formed. This test distinguishes alginic acid from acacia gum, sodium carboxymethyl cellulose, carboxymethyl starch, carrageenan, gelatin, gum ghatti, karaya gum, locust bean gum, methyl cellulose and tragacanth gum |
| B. |
Calcium chloride precipitation test |
| C.Ammonium sulphate precipitation test |
C. |
Ammonium sulphate precipitation test |
To a 0,5 % solution of the sample in 1 M sodium hydroxide solution, add one half of its volume of a saturated solution of ammonium sulphate. No precipitate is formed. This test distinguishes alginic acid from agar, sodium carboxymethyl cellulose, carrageenan, de-esterified pectin, gelatin, locust bean gum, methyl cellulose and starch |
| C. |
Ammonium sulphate precipitation test |
| D.Colour reaction |
D. |
Colour reaction |
Dissolve as completely as possible 0,01 g of the sample by shaking with 0,15 ml of 0,1 N sodium hydroxide and add 1 ml of acid ferric sulphate solution. Within 5 minutes, a cherry-red colour develops that finally becomes deep purple |
| D. |
Colour reaction |
| Purity |
|
| pH of a 3 % suspension |
Between 2,0 and 3,5 |
| Loss on drying |
Not more than 15 % (105oC, 4 hours) |
| Sulphated ash |
Not more than 8 % on the anhydrous basis |
| Sodium hydroxide (1 M solution) |
Not more than 2 % on the anhydrous basis insoluble matter |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Cadmium |
Not more than 1 mg/kg |
| Heavy metals (as Pb) |
Not more than 20 mg/kg |
| Total plate count |
Not more than 5 000 colonies per gram |
| Yeast and moulds |
Not more than 500 colonies per gram |
| E. coli |
Negative in 5 g |
| Salmonellaspp. |
Negative in 10 g |
| B. |
Calcium chloride precipitation test |
| C. |
Ammonium sulphate precipitation test |
| Definition |
|
| Chemical name |
Sodium salt of alginic acid |
| Chemical formula |
(C6H7NaO6)n |
| Molecular weight |
10 000 -600 000 (typical average) |
| Assay |
Yields, on the anhydrous basis, not less than 18 % and not more than 21 % of carbon dioxide corresponding to not less than 90,8 % and not more than 106,0 % of sodium alginate (calculated on equivalent weight basis of 222) |
| Description |
Nearly odourless, white to yellowish fibrous or granular powder |
| Identification |
|
| A.Positive test for sodium and alginic acid |
A. |
Positive test for sodium and alginic acid |
|
| A. |
Positive test for sodium and alginic acid |
| Purity |
|
| Loss on drying |
Not more than 15 % (105oC, 4 hours) |
| Water-insoluble matter |
Not more than 2 % on the anhydrous basis |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Cadmium |
Not more than 1 mg/kg |
| Heavy metals (as Pb) |
Not more than 20 mg/kg |
| Total plate count |
Not more than 5 000 colonies per gram |
| Yeast and moulds |
Not more than 500 colonies per gram |
| E. coli |
Negative in 5 g |
| Salmonellaspp. |
Negative in 10 g |
| A. |
Positive test for sodium and alginic acid |
| Definition |
|
| Chemical name |
Potassium salt of alginic acid |
| Chemical formula |
(C6H7KO6)n |
| Molecular weight |
10 000 -600 000 (typical average) |
| Assay |
Yields, on the anhydrous basis, not less than 16,5 % and not more than 19,5 % of carbon dioxide corresponding to not less than 89,2 % and not more than 105,5 % of potassium alginate (calculated on an equivalent weight basis of 238) |
| Description |
Nearly odourless, white to yellowish fibrous or granular powder |
| Identification |
|
| A.Positive test for potassium and for alginic acid |
A. |
Positive test for potassium and for alginic acid |
|
| A. |
Positive test for potassium and for alginic acid |
| Purity |
|
| Loss on drying |
Not more than 15 % (105oC, 4 hours) |
| Water-insoluble matter |
Not more than 2 % on the anhydrous basis |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Cadmium |
Not more than 1 mg/kg |
| Heavy metals (as Pb) |
Not more than 20 mg/kg |
| Total plate count |
Not more than 5 000 colonies per gram |
| Yeast and moulds |
Not more than 500 colonies per gram |
| E.coli |
Negative in 5 g |
| Salmonellaspp. |
Negative in 10 g |
| A. |
Positive test for potassium and for alginic acid |
| Definition |
|
| Chemical name |
Ammonium salt of alginic acid |
| Chemical formula |
(C6H11NO6)n |
| Molecular weight |
10 000 — 600 000 (typical average) |
| Assay |
Yields, on the anhydrous basis, not less than 18 % and not more than 21 % of carbon dioxide corresponding to not less than 88,7 % and not more than 103,6 % ammonium alginate (calculated on an equivalent weight basis of 217) |
| Description |
White to yellowish fibrous or granular powder |
| Identification |
|
| A.Positive test for ammonium and alginic acid |
A. |
Positive test for ammonium and alginic acid |
|
| A. |
Positive test for ammonium and alginic acid |
| Purity |
|
| Loss on drying |
Not more than 15 % (105oC, 4 hours) |
| Sulphated ash |
Not more than 7 % on the dried basis |
| Water-insoluble matter |
Not more than 2 % on the anhydrous basis |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Cadmium |
Not more than 1 mg/kg |
| Heavy metals |
Not more than 20 mg/kg |
| Total plate count |
Not more than 5 000 colonies per gram |
| Yeast and moulds |
Not more than 500 colonies per gram |
| E. coli |
Negative in 5 g |
| Salmonellaspp. |
Negative in 10 g |
| A. |
Positive test for ammonium and alginic acid |
| Synonyms |
Calcium salt of alginate |
| Definition |
|
| Chemical name |
Calcium salt of alginic acid |
| Chemical formula |
(C6H7Ca1/2O6)n |
| Molecular weight |
10 000 -600 000 (typical average) |
| Assay |
Yields, on the anhydrous basis, not less than 18 % and not more than 21 % carbon dioxide corresponding to not less than 89,6 % and not more than 104,5 % of calcium alginate (calculated on an equivalent weight basis of 219) |
| Description |
Nearly odourless, white to yellowish fibrous or granular powder |
| Identification |
|
| A.Positive test for calcium and alginic acid |
A. |
Positive test for calcium and alginic acid |
|
| A. |
Positive test for calcium and alginic acid |
| Purity |
|
| Loss on drying |
Not more than 15,0 % (105oC, 4 hours) |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Cadmium |
Not more than 1 mg/kg |
| Heavy metals (as Pb) |
Not more than 20 mg/kg |
| Total plate count |
Not more than 5 000 colonies per gram |
| Yeast and moulds |
Not more than 500 colonies per gram |
| E. coli |
Negative in 5 g |
| Salmonellaspp. |
Negative in 10 g |
| A. |
Positive test for calcium and alginic acid |
| Synonyms |
Hydroxypropyl alginate |
| 1,2-propanediol ester of alginic acid |
| Propylene glycol alginate |
| Definition |
|
| Chemical name |
Propane-1,2-diol ester of alginic acid; varies in composition according to its degree of esterification and the percentage of free and neutralised carboxyl groups in the molecule |
| Chemical formula |
(C9H14O7)n(esterified) |
| Molecular weight |
10 000 -600 000 (typical average) |
| Assay |
Yields, on the anhydrous basis, not less than 16 % and not more than 20 % of CO2of carbon dioxide |
| Description |
Nearly odourless, white to yellowish brown fibrous or granular powder |
| Identification |
|
| A.Positive test for 1,2-propanediol and alginic acid after hydrolysis |
A. |
Positive test for 1,2-propanediol and alginic acid after hydrolysis |
|
| A. |
Positive test for 1,2-propanediol and alginic acid after hydrolysis |
| Purity |
|
| Loss on drying |
Not more than 20 % (105oC, 4 hours) |
| Total propane-1,2-diol content |
Not less than 15 % and not more than 45 % |
| Free propane-1,2-diol content |
Not more than 15 % |
| Water-insoluble matter |
Not more than 2 % on the anhydrous basis |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Cadmium |
Not more than 1 mg/kg |
| Heavy metals (as Pb) |
Not more than 20 mg/kg |
| Total plate count |
Not more than 5 000 colonies per gram |
| Yeast and moulds |
Not more than 500 colonies per gram |
| E. coli |
Negative in 5 g |
| Salmonellaspp. |
Negative in 10 g |
| A. |
Positive test for 1,2-propanediol and alginic acid after hydrolysis |
| Synonyms |
Gelose |
| Japan agar |
| Bengal, Ceylon, Chinese or Japanese isinglass |
| Layor Carang |
| Definition |
|
| Chemical name |
Agar is a hydrophilic colloidal polysaccharide consisting mainly of D-galactose units. On about every tenth D-galactopyranose unit one of the hydroxyl groups is esterified with sulphuric acid which is neutralised by calcium, magnesium, potassium or sodium. It is extracted from certain natural strains of marine algae of the familiesGelidiaceaeandSphaerococcaceaeand related red algae of the classRhodophyceae |
| Einecs |
232-658-1 |
| Assay |
The threshold gel concentration should not be higher than 0,25 % |
| Description |
Agar is odourless or has a slight characteristic odour. Unground agar usually occurs in bundles consisting of thin, membranous, agglutinated strips, or in cut, flaked or granulated forms. It may be light yellowish-orange, yellowish-grey to pale yellow, or colourless. It is tough when damp, brittle when dry. Powdered agar is white to yellowish-white or pale yellow. When examined in water under a microscope, the agar appears granular and somewhat filamentous. A few fragments of the spicules of sponges and a few frustules of diatoms may be present. In chloral hydrate solution, the powdered agar appears more transparent than in water, more or less granular, striated, angular and occasionally contains frustules of diatoms. Gel strength may be standardised by the addition of dextrose and maltodextrines or sucrose |
| Identification |
|
| A.Solubility |
A. |
Solubility |
Insoluble in cold water; soluble in boiling water |
| A. |
Solubility |
| Purity |
|
| Loss on drying |
Not more than 22 % (105oC, 5 hours) |
| Ash |
Not more than 6,5 % on the anhydrous basis determined at 550oC |
| Acid-insoluble ash (insoluble in approximately 3N Hydrochloric acid) |
Not more than 0,5 % determined at 550oC on the anhydrous basis |
| Insoluble matter (in hot water) |
Not more than 1,0 % |
| Starch |
Not detectable by the following method: to a 1 in 10 solution of the sample add a few drops of iodine solution. No blue colour is produced |
| Gelatin and other proteins |
Dissolve about 1 g of agar in 100 ml of boiling water and allow to cool of about 50oC. To 5 ml of the solution add 5 ml of trinitrophenol solution (1 g of anhydrous trinitrophenol/100 ml of hot water). No turbidity appears within 10 minutes |
| Water absorption |
Place 5 g to agar in a 100 ml graduated cylinder, fill to the mark with water, mix and allow to stand at about 25oC for 24 hours. Pour the contents of the cylinder through moistened glass wool, allowing the water to drain into a second 100 ml graduated cylinder. Not more than 75 ml of water is obtained |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Cadmium |
Not more than 1 mg/kg |
| Heavy metals (as Pb) |
Not more than 20 mg/kg |
| Synonyms |
Products of commerce are sold under different names such as: |
| Irish moss gelose |
| Eucheuman (fromEucheumaspp.) |
| Iridophycan (fromIridaeaspp.) |
| Hypnean (fromHypneaspp.) |
| Furcellaran or Danish agar (fromFurcellaria fastigiata) |
| Carrageenan (fromChondrusandGigartinaspp.) |
| Definition |
Carrageenan is obtained by aqueous extraction of natural strains of seaweeds ofGigartinaceae,Solieriaceae,HypneaceaeandFurcellariaceae, families of the classRhodophyceae(red seaweeds). No organic precipitant shall be used other than methanol, ethanol and propane-2-ol. Carrageenan consists chiefly of the potassium, sodium, magnesium and calcium salts of polysaccharide sulphate esters which, on hydrolysis, yield galactose and 3,6-anhydrogalactose. Carrageenan shall not be hydrolysed or otherwise chemically degraded |
| Einecs |
232-524-2 |
| Description |
Yellowish to colourless, coarse to fine powder which is practically odourless |
| Identification |
|
| A.Positive tests for galactose, for anhydrogalactose and for sulphate |
A. |
Positive tests for galactose, for anhydrogalactose and for sulphate |
|
| A. |
Positive tests for galactose, for anhydrogalactose and for sulphate |
| Purity |
|
| Methanol, ethanol propane-2-ol content |
Not more than 0,1 % singly or in combination |
| Viscosity of a 1,5 % solution at 75oC |
Not less than 5 mPa.s |
| Loss on drying |
Not more than 12 % (105oC, four hours) |
| Sulphate |
Not less than 15 % and not more than 40 % on the dried basis (as SO4) |
| Ash |
Not less than 15 % and not more than 40 % determined on the dried basis at 550oC |
| Acid-insoluble ash |
Not more than 1 % on the dried basis (insoluble in 10 % hydrochloric acid) |
| Acid-insoluble matter |
Not more than 2 % on the dried basis (insoluble in 1 % v/v sulphuric acid) |
| Low molecular weight carrageenan (Molecular weight fraction below 50 kDa) |
Not more than 5 % |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Cadmium |
Not more than 1 mg/kg |
| Total plate count |
Not more than 5 000 colonies per gram |
| Yeast and moulds |
Not more than 300 colonies per gram |
| E. coli |
Negative in 5 g |
| Salmonellaspp. |
Negative in 10 g |
| A. |
Positive tests for galactose, for anhydrogalactose and for sulphate |
| Synonyms |
PES (acronym for processed eucheuma seaweed) |
| Definition |
Processed eucheuma seaweed is obtained by aqueous alkaline (KOH) treatment of the natural strains of seaweedsEucheuma cottoniiandEucheuma spinosum, of the classRhodophyceae(red seaweeds) to remove impurities and by fresh water washing and drying to obtain the product. Further purification may be achieved by washing with methanol, ethanol or propane-2-ol and drying. The product consists chiefly of the potassium salts of polysaccharide sulphate esters which, on hydrolysis, yield galactose and 3,6-anhydrogalactose. Sodium, calcium and magnesium salts of the polysaccharide sulphate esters are present in lesser amounts. Up to 15 % algal cellulose is also present in the product. The carrageenan in processed eucheuma seaweed shall not be hydrolysed or otherwise chemically degraded |
| Description |
Tan to yellowish, coarse to fine powder which is practically odourless |
| Identification |
|
| A.Positive tests for galactose, for anhydrogalactose and for sulphate |
A. |
Positive tests for galactose, for anhydrogalactose and for sulphate |
|
| A. |
Positive tests for galactose, for anhydrogalactose and for sulphate |
| B.Solubility |
B. |
Solubility |
Forms cloudy viscous suspensions in water. Insoluble in ethanol |
| B. |
Solubility |
| Purity |
|
| Methanol, ethanol, propane-2-ol content |
Not more than 0,1 % singly or in combination |
| Viscosity of a 1,5 % solution at 75oC |
Not less than 5 mPa.s |
| Loss on drying |
Not more than 12 % (105oC, four hours) |
| Sulphate |
Not less than 15 % and not more than 40 % on the dried basis (as SO4) |
| Ash |
Not less than 15 % and not more than 40 % determined on the dried basis at 550oC |
| Acid-insoluble ash |
Not more than 1 % on the dried basis (insoluble in 10 % hydrochloric acid) |
| Acid-insoluble matter |
Not less than 8 % and not more than 15 % on the dried basis (insoluble in 1 % v/v sulphuric acid) |
| Low molecular weight carrageenan (Molecular weight fraction below 50 kDa) |
Not more than 5 % |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Cadmium |
Not more than 1 mg/kg |
| Total plate count |
Not more than 5 000 colonies per gram |
| Yeast and moulds |
Not more than 300 colonies per gram |
| E. coli |
Negative in 5 g |
| Salmonellaspp. |
Negative in 10 g |
| A. |
Positive tests for galactose, for anhydrogalactose and for sulphate |
| Synonyms |
Carob bean gum |
| Algaroba gum |
| Definition |
Locust bean gum is the ground endosperm of the seeds of the natural strains of carob tree,Cerationia siliqua(L.) Taub. (familyLeguminosae). Consists mainly of a high molecular weight hydrocolloidal polysaccharide, composed of galactopyranose and mannopyranose units combined through glycosidic linkages, which may be described chemically as galactomannan |
| Molecular weight |
50 000 -3 000 000 |
| Einecs |
232-541-5 |
| Assay |
Galactomannan content not less than 75 % |
| Description |
White to yellowish-white, nearly odourless powder |
| Identification |
|
| A.Positive tests for galactose mannose |
A. |
Positive tests for galactose mannose |
|
| A. |
Positive tests for galactose mannose |
| B.Microscopic examination |
B. |
Microscopic examination |
Place some ground sample in an aqueous solution containing 0,5 % iodine and 1 % potassium iodide on a glass slide and examine under microscope. Locust bean gum contains long stretched tubiform cells, separated or slightly interspaced. Their brown contents are much less regularly formed in guar gum. Guar gum shows close groups of round to pear shaped cells. Their contents are yellow to brown |
| B. |
Microscopic examination |
| C.Solubility |
C. |
Solubility |
Soluble in hot water, insoluble in ethanol |
| C. |
Solubility |
| Purity |
|
| Loss on drying |
Not more than 15 % (105oC, 5 hours) |
| Ash |
Not more than 1,2 % determined at 800oC |
| Protein (N × 6,25 ) |
Not more than 7 % |
| Acid-insoluble matter |
Not more than 4 % |
| Starch |
Not detectable by the following method: to a 1 in 10 solution of the sample add a few drops of iodine solution. No blue colour is produced |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Cadmium |
Not more than 1 mg/kg |
| Heavy metals (as Pb) |
Not more than 20 mg/kg |
| Ethanol and propane-2-ol |
Not more than 1 %, single or in combination |
| A. |
Positive tests for galactose mannose |
| B. |
Microscopic examination |
| Synonyms |
Gum cyamopsis |
| Guar flour |
| Definition |
Guar gum is the ground endosperm of the seeds of natural strains of the guar plant,Cyamopsis tetragonolobus(L.) Taub. (familyLeguminosae). Consists mainly of a high molecular weight hydrocolloidal polysaccharide composed of galactopyranose and mannopyranose units combined through glycosidic linkages, which may be described chemically as galactomannan |
| Einecs |
232-536-0 |
| Molecular weight |
50 000 -8 000 000 |
| Assay |
Galactomannan content not less than 75 % |
| Description |
A white to yellowish-white, nearly odourless powder |
| Identification |
|
| A.Positive tests for galactose and for mannose |
A. |
Positive tests for galactose and for mannose |
|
| A. |
Positive tests for galactose and for mannose |
| B.Solubility |
B. |
Solubility |
Soluble in cold water |
| B. |
Solubility |
| Purity |
|
| Loss on drying |
Not more than 15 % (105oC, 5 hours) |
| Ash |
Not more than 1,5 % determined at 800oC |
| Acid-insoluble matter |
Not more than 7 % |
| Protein (N × 6,25 ) |
Not more than 10 % |
| Starch |
Not detectable by the following method: to a 1 in 10 solution of the sample add a few drops of iodine solution. (No blue colour is produced) |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Cadmium |
Not more than 1 mg/kg |
| Heavy metals (as Pb) |
Not more than 20 mg/kg |
| A. |
Positive tests for galactose and for mannose |
| Synonyms |
Tragacanth gum |
| Tragant |
| Definition |
Tragacanth is a dried exudation obtained from the stems and branches of natural strains ofAstragalus gummiferLabillardiere and other Asiatic species ofAstragalus(familyLeguminosae). It consists mainly of high molecular weight polysaccharides (galactoarabans and acidic polysaccharides) which, on hydrolysis, yield galacturonic acid, galactose, arabinose, xylose and fucose. Small amounts of rhamnose and of glucose (derived from traces of starch and/or cellulose) may also be present |
| Molecular weight |
Approximately 800 000 |
| Einecs |
232-252-5 |
| Description |
Unground Tragacanth gum occurs as flattened, lamellated, straight or curved fragments or as spirally twisted pieces 0,5 -2,5 mm thick and up to 3 cm in length. It is white to pale yellow in colour but some pieces may have a red tinge. The pieces are horny in texture, with a short fracture. It is odourless and solutions have an insipid mucilaginous taste. Powdered tragacanth is white to pale yellow or pinkish brown (pale tan) in colour |
| Identification |
|
| A.Solubility |
A. |
Solubility |
1 g of the sample in 50 ml of water swells to form a smooth, stiff, opalescent mucilage; insoluble in ethanol and does not swell in 60 % (w/v) aqueous ethanol |
| A. |
Solubility |
| Purity |
|
| Negative test for Karaya gum |
Boil 1 g with 20 ml of water until a mucilage is formed. Add 5 ml of hydrochloric acid and again boil the mixture for five minutes. No permanent pink or red colour develops |
| Loss on drying |
Not more than 16 % (105oC, 5 hours) |
| Total ash |
Not more than 4 % |
| Acid insoluble ash |
Not more than 0,5 % |
| Acid insoluble matter |
Not more than 2 % |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Cadmium |
Not more than 1 mg/kg |
| Heavy metals (as Pb) |
Not more than 20 mg/kg |
| Salmonellaspp. |
Negative in 10 g |
| E. coli |
Negative in 5 g |
| Synonyms |
Gum arabic |
| Definition |
Acacia gum is a dried exudation obtained from the stems and branches of natural strains ofAcacia senegal(L) Willdenow or closely related species of Acacia (familyLeguminosae). It consists mainly of high molecular weight polysaccharides and their calcium, magnesium and potassium salts, which on hydrolysis yield arabinose, galactose, rhamnose and glucuronic acid |
| Molecular weight |
Approximately 350 000 |
| Einecs |
232-519-5 |
| Description |
Unground acacia gum occurs as white or yellowish-white spheroidal tears of varying sizes or as angular fragments and is sometimes mixed with darker fragments. It is also available in the form of white to yellowish-white flakes, granules, powder or spray-dried material. |
| Identification |
|
| A.Solubility |
A. |
Solubility |
1 g dissolves in 2 ml of cold water forming a solution which flows readily and is acid to litmus, insoluble in ethanol |
| A. |
Solubility |
| Purity |
|
| Loss on drying |
Not more than 17 % (105oC, 5 hours) for granular and not more than 10 % (105oC, 4 hours) for spray-dried material |
| Total ash |
Not more than 4 % |
| Acid insoluble ash |
Not more than 0,5 % |
| Acid insoluble matter |
Not more than 1 % |
| Starch or dextrin |
Boil a 1 in 50 solution of the gum and cool. To 5 ml add 1 drop of iodine solution. No bluish or reddish colours are produced |
| Tannin |
To 10 ml of a 1 in 50 solution add about 0,1 ml of ferric chloride solution (9 g FeCl3.6H2O made up to 100 ml with water). No blackish colouration or blackish precipitate is formed |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Cadmium |
Not more than 1 mg/kg |
| Heavy metals (as Pb) |
Not more than 20 mg/kg |
| Hydrolysis products |
Mannose, xylose and galacturonic acid are absent (determined by chromatography) |
| Salmonellaspp. |
Negative in 10 g |
| E. coli |
Negative in 5 g |
| Definition |
Xanthan gum is a high molecular weight polysaccharide gum produced by a pure-culture fermentation of a carbohydrate with natural strains ofXanthomonas campestris, purified by recovery with ethanol or propane-2-ol, dried and milled. It contains D-glucose and D-mannose as the dominant hexose units, along with D-glucuronic acid and pyruvic acid, and is prepared as the sodium, potassium or calcium salt. Its solutions are neutral |
| Molecular weight |
Approximately 1 000 000 |
| Einecs |
234-394-2 |
| Assay |
Yields, on dried basis, not less than 4,2 % and not more than 5 % of CO2corresponding to between 91 % and 108 % of xanthan gum |
| Description |
Cream-coloured powder |
| Identification |
|
| A.Solubility |
A. |
Solubility |
Soluble in water. Insoluble in ethanol |
| A. |
Solubility |
| Purity |
|
| Loss on drying |
Not more than 15 % (105oC, 21/2 hours) |
| Total ash |
Not more than 16 % on the anhydrous basis determined at 650oC after drying at 105oC for four hours |
| Pyruvic acid |
Not less than 1,5 % |
| Nitrogen |
Not more than 1,5 % |
| Ethanol and propan-2-ol |
Not more than 500 mg/kg singly or in combination |
| Lead |
Not more than 2 mg/kg |
| Total plate count |
Not more than 5 000 colonies per gram |
| Yeast and mould |
Not more than 300 colonies per gram |
| E. coli |
Absent in 5 g |
| Salmonellaspp. |
Absent in 10 g |
| Xanthomonas campestris |
Viable cells absent in 1 g |
| Synonyms |
Katilo |
| Kadaya |
| Gumsterculia |
| Sterculia |
| Karaya, gum karaya |
| Kullo |
| Kuterra |
| Definition |
Karaya gum is a dried exudation from the stems and branches of natural strains of:Sterculia urensRoxburgh and other species ofSterculia(familySterculiaceae) or fromCochlospermum gossypiumA.P. De Candolle or other species ofCochlospermum(familyBixaceae). It consists mainly of high molecular weight acetylated polysaccharides, which on hydrolysis yield galactose, rhamnose, and galacturonic acid, together with minor amounts of glucuronic acid |
| Einecs |
232-539-4 |
| Description |
Karaya gum occurs in tears of variable size and in broken irregular pieces having a characteristic semi-crystalline appearance. It is pale yellow to pinkish brown in colour, translucent and horny. Powdered karaya gum is a pale grey to pinkish brown. The gum has a distinctive odour of acetic acid |
| Identification |
|
| A.Solubility |
A. |
Solubility |
Insoluble in ethanol |
| A. |
Solubility |
| B.Swelling in ethanol solution |
B. |
Swelling in ethanol solution |
Karaya gum swells in 60 % ethanol distinguishing it from other gums |
| B. |
Swelling in ethanol solution |
| Purity |
|
| Loss on drying |
Not more than 20 % (105oC, 5 hours) |
| Total ash |
Not more than 8 % |
| Acid insoluble ash |
Not more than 1 % |
| Acid insoluble matter |
Not more than 3 % |
| Volatile acid |
Not less than 10 % (as acetic acid) |
| Starch |
Not detectable |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Cadmium |
Not more than 1 mg/kg |
| Heavy metals (as Pb) |
Not more than 20 mg/kg |
| Salmonellaspp. |
Negative in 10 g |
| E. coli |
Negative in 5 g |
| B. |
Swelling in ethanol solution |
| Definition |
Tara gum is obtained by grinding the endosperm of the seeds of natural strains ofCaesalpinia spinosa(familyLeguminosae). It consists chiefly of polysaccharides of high molecular weight composed mainly of galactomannans. The principal component consists of a linear chain of (1-4)-β-D-mannopyranose units with α-D-galactopyranose units attached by (1-6) linkages. The ratio of mannose to galactose in tara gum is 3:1. (In locust bean gum this ratio is 4:1 and in guar gum 2:1) |
| Einecs |
254-409-6 |
| Description |
A white to white-yellow odourless powder |
| Identification |
|
| A.Solubility |
A. |
Solubility |
Soluble in water |
| A. |
Solubility |
| Insoluble in ethanol |
| B.Gel formation |
B. |
Gel formation |
To an aqueous solution of the sample add small amounts of sodium borate. A gel is formed |
| B. |
Gel formation |
| Purity |
|
| Loss on drying |
Not more than 15 % |
| Ash |
Not more than 1,5 % |
| Acid insoluble matter |
Not more than 2 % |
| Protein |
Not more than 3,5 % (factor N × 5,7 ) |
| Starch |
Not detectable |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Cadmium |
Not more than 1 mg/kg |
| Heavy metals (as Pb) |
Not more than 20 mg/kg |
| Definition |
Gellan gum is a high molecular weight polysaccharide gum produced by a pure culture fermentation of a carbohydrate by natural strains ofPseudomonas elodea, purified by recovery with isopropyl alcohol, dried, and milled. The high molecular weight polysaccharide is principally composed of a tetrasaccharide repeating unit of one rhamnose, one glucuronic acid, and two glucoses, and substituted with acyl (glyceryl and acetyl) groups as the O-glycosidically linked esters. The glucuronic acid is neutralised to a mixed potassium, sodium, calcium, and magnesium salt |
| Einecs |
275-117-5 |
| Molecular weight |
Approximately 500 000 |
| Assay |
Yields, on the dried basis, not less than 3,3 % and not more than 6,8 % of CO2 |
| Description |
An off-white powder |
| Identification |
|
| A.Solubility |
A. |
Solubility |
Soluble in water, forming a viscous solution. |
| A. |
Solubility |
| Insoluble in ethanol |
| Purity |
|
| Loss on drying |
Not more than 15 % after drying (105oC, 21/2 hours) |
| Nitrogen |
Not more than 3 % |
| Propane-2-ol |
Not more than 750 mg/kg |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 2 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Cadmium |
Not more than 1 mg/kg |
| Heavy metals (as Pb) |
Not more than 20 mg/kg |
| Total plate count |
Not more than 10 000 colonies per gram |
| Yeast and mould |
Not more than 400 colonies per gram |
| E. coli |
Negative in 5 g |
| Salmonellaspp. |
Negative in 10 g |
| Synonyms |
Glycerin |
| Glycerine |
| Definition |
|
| Chemical names |
1,2,3-propanetriol |
| Glycerol |
| Trihydroxypropane |
| Einecs |
200-289-5 |
| Chemical formula |
C3H8O3 |
| Molecular weight |
92,10 |
| Assay |
Content not less than 98 % of glycerol on the anhydrous basis |
| Description |
Clear, colourless hygroscopic syrupy liquid with not more than a slight characteristic odour, which is neither harsh nor disagreeable |
| Identification |
|
| A.Acrolein formation on heating |
A. |
Acrolein formation on heating |
Heat a few drops of the sample in a test tube with about 0,5 g of potassium bisulphate. The characteristic pungent vapours of acrolein are evolved |
| A. |
Acrolein formation on heating |
| B.Specific gravity (25/25oC) |
B. |
Specific gravity (25/25oC) |
Not less than 1,257 |
| B. |
Specific gravity (25/25oC) |
| C.Refractive index [n]D20 |
C. |
Refractive index [n]D20 |
Between 1,471 and 1,474 |
| C. |
Refractive index [n]D20 |
| Purity |
|
| Water |
Not more than 5 % (Karl Fischer method) |
| Sulphated ash |
Not more than 0,01 % determined at 800 ± 25oC |
| Butanetriols |
Not more than 0,2 % |
| Acrolein, glucose and ammonium compounds |
Heat a mixture of 5 ml of glycerol and 5 ml of potassium hydroxide solution (1 in 10) at 60oC for five minutes. It neither becomes yellow nor emits an odour of ammonia |
| Fatty acids and esters |
Not more than 0,1 % calculated as butyric acid |
| Chlorinated compounds |
Not more than 30 mg/kg (as chlorine) |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 2 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Cadmium |
Not more than 1 mg/kg |
| Heavy metals (as Pb) |
Not more than 5 mg/kg |
| A. |
Acrolein formation on heating |
| B. |
Specific gravity (25/25oC) |
| C. |
Refractive index [n]D20 |
| Definition |
Konjac gum is a water-soluble hydrocolloid obtained from the Konjac flour by aqueous extraction. Konjac flour is the unpurified raw product from the root of the perennial plantAmorphophallus konjac.The main component of Konjac gum is the water-soluble high-molecular-weight polysaccharide glucomannan, which consists of D-mannose and D-glucose units at a molar ratio of 1,6 :1,0, connected by β(1-4)-glycosidic bonds. Shorter side chains are attached through β(1-3)-glycosidic bonds, and acetyl groups occur at random at a ratio of about 1 group per 9 to 19 sugar units |
| Molecular weight |
The main component, glucomannan, has an average molecular weight of 200 000 to 2 000 000 |
| Assay |
Not less than 75 % carbohydrate |
| Description |
A white to cream to light tan powder |
| Identification |
|
| A.Solubility |
A. |
Solubility |
Dispersible in hot or cold water forming a highly viscous solution with a pH between 4,0 and 7,0 |
| A. |
Solubility |
| B.Gel formation |
B. |
Gel formation |
Add 5 ml of a 4 % sodium borate solution to a 1 % solution of the sample in a test tube, and shake vigorously. A gel forms |
| B. |
Gel formation |
| C.Formation of heat-stable gel |
C. |
Formation of heat-stable gel |
Prepare a 2 % solution of the sample by heating it in a boiling water bath for 30 min, with continuous agitation and then cooling the solution to room temperature. For each g of the sample used to prepare 30 g of the 2 % solution, add 1 ml of 10 % potassium carbonate solution to the fully hydrated sample at ambient temperature. Heat the mixture in a water bath to 85oC, and maintain for 2 h without agitation. Under these conditions a thermally stable gel is formed |
| C. |
Formation of heat-stable gel |
| D.Viscosity (1 % solution) |
D. |
Viscosity (1 % solution) |
Not less than 3 kgm-1s-1at 25oC |
| D. |
Viscosity (1 % solution) |
| Purity |
|
| Loss on drying |
Not more than 12 % (105oC, 5 h) |
| Starch |
Not more than 3 % |
| Protein |
Not more than 3 % (N × 5,7 ) |
| Determine nitrogen by Kjeldahl method. The percentage of nitrogen in the sample multiplied by 5,7 gives the percent of protein in the sample |
| Ether-soluble material |
Not more than 0,1 % |
| Total ash |
Not more than 5,0 % (800oC, 3 to 4h) |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 2 mg/kg |
| Salmonellaspp. |
Absent in 12,5 g |
| E. coli |
Absent in 5 g |
| C. |
Formation of heat-stable gel |
| D. |
Viscosity (1 % solution) |
| Definition |
Konjac glucomannan is a water-soluble hydrocolloid obtained from Konjac flour by washing with water-containing ethanol. Konjac flour is the unpurified raw product from the tuber of the perennial plantAmorphophallus konjac. The main component is the water-soluble high-molecular-weight polysaccharide glucomannan, which consists of D-mannose and D-glucose units at a molar ratio of 1,6 :1,0, connected by β(1-4)-glycosidic bonds with a branch at about each 50th or 60th unit. About each 19th sugar residue is acetylated |
| Molecular weight |
500 000 to 2 000 000 |
| Assay |
Total dietary fibre: not less than 95 % on a dry weight basis |
| Description |
White to slightly brownish fine particle size, free flowing and odourless powder |
| Identification |
|
| A.Solubility |
A. |
Solubility |
Dispersible in hot or cold water forming a highly viscous solution with a pH between 5,0 and 7,0 . Solubility is increased by heat and mechanical agitation |
| A. |
Solubility |
| B.Formation of heat-stable gel |
B. |
Formation of heat-stable gel |
Prepare a 2 % solution of the sample by heating it in a boiling water bath for 30 min, with continuous agitation and then cooling the solution to room temperature. For each g of the sample used to prepare 30 g of the 2 % solution, add 1 ml of 10 % potassium carbonate solution to the fully hydrated sample at ambient temperature. Heat the mixture in a water bath to 85oC, and maintain for 2 h without agitation. Under these conditions a thermally stable gel is formed |
| B. |
Formation of heat-stable gel |
| C.Viscosity (1 % solution) |
C. |
Viscosity (1 % solution) |
Not less than 20 kgm-1s-1at 25oC |
| C. |
Viscosity (1 % solution) |
| Purity |
|
| Loss on drying |
Not more than 8 % (105oC, 3h) |
| Starch |
Not more than 1 % |
| Protein |
Not more than 1,5 % (N × 5,7 ) |
| Determine nitrogen by Kjeldahl method. The percentage of nitrogen in the sample multiplied by 5,7 gives the percent of protein in the sample |
| Ether-soluble material |
Not more than 0,5 % |
| Sulphite (as SO2) |
Not more than 4 mg/kg |
| Chloride |
Not more than 0,02 % |
| 50 % Alcohol-soluble |
Not more than 2,0 % material |
| Total ash |
Not more than 2,0 % (800oC, 3 to 4h) |
| Lead |
Not more than 1 mg/kg |
| Salmonellaspp. |
Absent in 12,5 g |
| E. coli |
Absent in 5 g |
| B. |
Formation of heat-stable gel |
| C. |
Viscosity (1 % solution) |
| Definition |
Soybean hemicellulose is a refined water-soluble polysaccharide obtained from natural strain soybean fibre by hot water extraction |
| Chemical names |
Water soluble soybean polysaccharides |
| Water soluble soybean fibre |
| Assay |
Not less than 74 % carbohydrate |
| Description |
Free flowing spray-dried white powder |
| Identification |
|
| A.Solubility pH of 1 % solution |
A. |
Solubility pH of 1 % solution |
Soluble in hot and cold water without gel formation |
| A. |
Solubility pH of 1 % solution |
| 5,5 ±1,5 |
| B.Viscosity of 10 % solution |
B. |
Viscosity of 10 % solution |
Not more than 200 mPa.s |
| B. |
Viscosity of 10 % solution |
| Purity |
|
| Loss on drying |
Not more than 7 % (105oC, 4h) |
| Protein |
Not more than 14 % |
| Total ash |
Not more than 9,5 % (600oC, 4h) |
| Arsenic |
Not more than 2 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Cadmium |
Not more than 1 mg/kg |
| Standard plate count |
Not more than 3 000 colonies per gram |
| Yeast and mould |
Not more than 100 colonies per gram |
| E. coli |
Negative in 10 g |
| A. |
Solubility pH of 1 % solution |
| B. |
Viscosity of 10 % solution |
| Synonyms |
Polyoxyl (40) stearate |
| polyoxyethylene (40) monostearate |
| Definition |
A mixture of the mono- and diesters of edible commercial stearic acid and mixed polyoxyethylene diols (having an average polymer length of about 40 oxyethylene units) together with free polyol |
| Assay |
Content not less than 97,5 % on the anhydrous basis |
| Description |
Cream-coloured flakes or waxy solid at 25oC with a faint odour |
| Identification |
|
| A.Solubility |
A. |
Solubility |
Soluble in water, ethanol, methanol and ethyl acetate. Insoluble in mineral oil |
| A. |
Solubility |
| B.Congealing range |
B. |
Congealing range |
39oC-44oC |
| B. |
Congealing range |
| C.Infrared absorption spectrum |
C. |
Infrared absorption spectrum |
Characteristic of a partial fatty acid ester of a polyoxyethylated polyol |
| C. |
Infrared absorption spectrum |
| Purity |
|
| Water |
Not more than 3 % (Karl Fischer method) |
| Acid value |
Not more than 1 |
| Saponification value |
Not less than 25 and not more than 35 |
| Hydroxyl value |
Not less than 27 and not more than 40 |
| 1,4-Dioxane |
Not more than 5 mg/kg |
| Ethylene oxide |
Not more than 0,2 mg/kg |
| Ethylene glycols (mono- and di-) |
Not more than 0,25 % |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Cadmium |
Not more than 1 mg/kg |
| C. |
Infrared absorption spectrum |
| Synonyms |
Polysorbate 20 |
| Polyoxyethylene (20) sorbitan monolaurate |
| Definition |
A mixture of the partial esters of sorbitol and its mono- and dianhydrides with edible commercial lauric acid and condensed with approximately 20 moles of ethylene oxide per mole of sorbitol and its anhydrides |
| Assay |
Content not less than 70 % of oxyethylene groups, equivalent to not less than 97,3 % of polyoxyethylene (20) sorbitan monolaurate on the anhydrous basis |
| Description |
A lemon to amber-coloured oily liquid at 25oC with a faint characteristic odour |
| Identification |
|
| A.Solubility |
A. |
Solubility |
Soluble in water, ethanol, methanol, ethyl acetate and dioxane. Insoluble in mineral oil and petroleum ether |
| A. |
Solubility |
| B.Infrared absorption spectrum |
B. |
Infrared absorption spectrum |
Characteristic of a partial fatty acid ester of a polyoxyethylated polyol |
| B. |
Infrared absorption spectrum |
| Purity |
|
| Water |
Not more than 3 % (Karl Fischer method) |
| Acid value |
Not more than 2 |
| Saponification value |
Not less than 40 and not more than 50 |
| Hydroxyl value |
Not less than 96 and not more than 108 |
| 1,4-dioxane |
Not more than 5 mg/kg |
| Ethylene oxide |
Not more than 0,2 mg/kg |
| Ethylene glycols (mono- and di-) |
Not more than 0,25 % |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Cadmium |
Not more than 1 mg/kg |
| B. |
Infrared absorption spectrum |
| Synonyms |
Polysorbate 80 |
| Polyoxyethylene (20) sorbitan monooleate |
| Definition |
A mixture of the partial esters of sorbitol and its mono- and dianhydrides with edible commercial oleic acid and condensed with approximately 20 moles of ethylene oxide per mole of sorbitol and its anhydrides |
| Assay |
Content not less than 65 % of oxyethylene groups, equivalent to not less than 96,5 % of polyoxyethylene (20) sorbitan monooleate on the anhydrous basis |
| Description |
A lemon to amber-coloured oily liquid at 25oC with a faint characteristic odour |
| Identification |
|
| A.Solubility |
A. |
Solubility |
Soluble in water, ethanol, methanol, ethyl acetate and toluene. Insoluble in mineral oil and petroleum ether |
| A. |
Solubility |
| B.Infrared absorption spectrum |
B. |
Infrared absorption spectrum |
Characteristic of a partial fatty acid ester of a polyoxyethylated polyol |
| B. |
Infrared absorption spectrum |
| Purity |
|
| Water |
Not more than 3 % (Karl Fischer method) |
| Acid value |
Not more than 2 |
| Saponification value |
Not less than 45 and not more than 55 |
| Hydroxyl value |
Not less than 65 and not more than 80 |
| 1,4-dioxane |
Not more than 5 mg/kg |
| Ethylene oxide |
Not more than 0,2 mg/kg |
| Ethylene glycols (mono- and di-) |
Not more than 0,25 % |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Cadmium |
Not more than 1 mg/kg |
| B. |
Infrared absorption spectrum |
| Synonyms |
Polysorbate 40 |
| Polyoxyethylene (20) sorbitan monopalmitate |
| Definition |
A mixture of the partial esters of sorbitol and its mono- and dianhydrides with edible commercial palmitic acid and condensed with approximately 20 moles of ethylene oxide per mole of sorbitol and its anhydrides |
| Assay |
Content not less than 66 % of oxyethylene groups, equivalent to not less than 97 % of polyoxyethylene (20) sorbitan monopalmitate on the anhydrous basis |
| Description |
A lemon to orange-coloured oily liquid or semi-gel at 25oC with a faint characteristic odour |
| Identification |
|
| A.Solubility |
A. |
Solubility |
Soluble in water, ethanol, methanol, ethyl acetate and acetone. Insoluble in mineral oil |
| A. |
Solubility |
| B.Infrared absorption spectrum |
B. |
Infrared absorption spectrum |
Characteristic of a partial fatty acid ester of a polyoxyethylated polyol |
| B. |
Infrared absorption spectrum |
| Purity |
|
| Water |
Not more than 3 % (Karl Fischer method) |
| Acid value |
Not more than 2 |
| Saponification value |
Not less than 41 and not more than 52 |
| Hydroxyl value |
Not less than 90 and not more than 107 |
| 1,4-dioxane |
Not more than 5 mg/kg |
| Ethylene oxide |
Not more than 0,2 mg/kg |
| Ethylene glycols (mono- and di-) |
Not more than 0,25 % |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Cadmium |
Not more than 1 mg/kg |
| B. |
Infrared absorption spectrum |
| Synonyms |
Polysorbate 60 |
| Polyoxyethylene (20) sorbitan monostearate |
| Definition |
A mixture of the partial esters of sorbitol and its mono- and dianhydrides with edible commercial stearic acid and condensed with approximately 20 moles of ethylene oxide per mole of sorbitol and its anhydrides |
| Assay |
Content not less than 65 % of oxyethylene groups, equivalent to not less than 97 % of polyoxyethylene (20) sorbitan monostearate on the anhydrous basis |
| Description |
A lemon to orange-coloured oily liquid or semi-gel at 25oC with a faint characteristic odour |
| Identification |
|
| A.Solubility |
A. |
Solubility |
Soluble in water, ethyl acetate and toluene. Insoluble in mineral oil and vegetable oils |
| A. |
Solubility |
| B.Infrared absorption spectrum |
B. |
Infrared absorption spectrum |
Characteristic of a partial fatty acid ester of a polyoxyethylated polyol |
| B. |
Infrared absorption spectrum |
| Purity |
|
| Water |
Not more than 3 % (Karl Fischer method) |
| Acid value |
Not more than 2 |
| Saponification value |
Not less than 45 and not more than 55 |
| Hydroxyl value |
Not less than 81 and not more than 96 |
| 1,4-dioxane |
Not more than 5 mg/kg |
| Ethylene oxide |
Not more than 0,2 mg/kg |
| Ethylene glycols (mono- and di-) |
Not more than 0,25 % |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Cadmium |
Not more than 1 mg/kg |
| B. |
Infrared absorption spectrum |
| Synonyms |
Polysorbate 65 |
| Polyoxyethylene (20) sorbitan tristearate |
| Definition |
A mixture of the partial esters of sorbitol and its mono- and dianhydrides with edible commercial stearic acid and condensed with approximately 20 moles of ethylene oxide per mole of sorbitol and its anhydrides |
| Assay |
Content not less than 46 % of oxyethylene groups, equivalent to not less than 96 % of polyoxyethylene (20) sorbitan tristearate on the anhydrous basis |
| Description |
A tan-coloured, waxy solid at 25oC with a faint characteristic odour |
| Identification |
|
| A.Solubility |
A. |
Solubility |
Dispersible in water. Soluble in mineral oil, vegetal oils, petroleum ether, acetone, ether, dioxane, ethanol and methanol |
| A. |
Solubility |
| B.Congealing range |
B. |
Congealing range |
29-33oC |
| B. |
Congealing range |
| C.Infrared absorption spectrum |
C. |
Infrared absorption spectrum |
Characteristic of a partial fatty acid ester of a polyoxyethylated polyol |
| C. |
Infrared absorption spectrum |
| Purity |
|
| Water |
Not more than 3 % (Karl Fischer method) |
| Acid value |
Not more than 2 |
| Saponification value |
Not less than 88 and not more than 98 |
| Hydroxyl value |
Not less than 40 and not more than 60 |
| 1,4-dioxane |
Not more than 5 mg/kg |
| Ethylene oxide |
Not more than 0,2 mg/kg |
| Ethylene glycols (mono- and di-) |
Not more than 0,25 % |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Cadmium |
Not more than 1 mg/kg |
| C. |
Infrared absorption spectrum |
| Definition |
Pectin consists mainly of the partial methyl esters of polygalacturonic acid and their ammonium, sodium, potassium and calcium salts. It is obtained by extraction in an aqueous medium of natural strains of appropriate edible plant material, usually citrus fruits or apples. No organic precipitant shall be used other than methanol, ethanol and propane-2-ol |
| Einecs |
232-553-0 |
| Assay |
Content not less than 65 % of galacturonic acid on the ash-free and anhydrous basis after washing with acid and alcohol |
| Description |
White, light yellow, light grey or light brown powder |
| Identification |
|
| A.Solubility |
A. |
Solubility |
Soluble in water forming a colloidal, opalescent solution. Insoluble in ethanol |
| A. |
Solubility |
| Purity |
|
| Loss on drying |
Not more than 12 % (105oC, 2 hours) |
| Acid insoluble ash |
Not more than 1 % (insoluble in approximately 3N hydrochloric acid) |
| Sulphur dioxide |
Not more than 50 mg/kg on the anhydrous basis |
| Nitrogen content |
Not more than 1,0 % after washing with acid and ethanol |
| Free methanol, ethanol and propane-2-ol |
Not more than 1 %, singly or in combination, on the anhydrous basis |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Cadmium |
Not more than 1 mg/kg |
| Heavy metals (as Pb) |
Not more than 20 mg/kg |
| Definition |
Amidated pectin consists mainly of the partial methyl esters and amides of polygalacturonic acid and their ammonium, sodium, potassium and calcium salts. It is obtained by extraction in an aqueous medium of appropriate natural strains of edible plant material, usually citrus fruits or apples and treatment with ammonia under alkaline conditions. No organic precipitant shall be used other than methanol, ethanol and propane-2-ol |
| Assay |
Content not less than 65 % of galacturonic acid on the ash-free and anhydrous basis after washing with acid and alcohol |
| Description |
White, light yellow, light greyish or light brownish powder |
| Identification |
|
| A.Solubility |
A. |
Solubility |
Soluble in water forming a colloidal, opalescent solution. Insoluble in ethanol |
| A. |
Solubility |
| Purity |
|
| Loss on drying |
Not more than 12 % (105oC, 2 hours) |
| Acid-insoluble ash |
Not more than 1 % (insoluble in approximately 3N hydrochloric acid) |
| Degree of amidation |
Not more than 25 % of total carboxyl groups |
| Sulphur dioxide residue |
Not more than 50 mg/kg on the anhydrous basis |
| Nitrogen content |
Not more than 2,5 % after washing with acid and ethanol |
| Free methanol, ethanol and propane-2-ol |
Not more than 1 % single or in combination, on a volatile matter-free basis |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Cadmium |
Not more than 1 mg/kg |
| Heavy metals (as Pb) |
Not more than 20 mg/kg |
| Synonyms |
Ammonium salts of phosphatidic acid, mixed ammonium salts of phoshorylated glycerides |
| Definition |
A mixture of the ammonium compounds of phosphatidic acids derived from edible fat and oil (usually partially hardened rapeseed oil). One or two or three glyceride moieties may be attached to phosphorus. Moreover, two phosphorus esters may be linked together as phosphatidyl phosphatides |
| Assay |
The phosphorus content is not less than 3 % and not more than 3,4 % by weight; the ammonium content is not less than 1,2 % and not more than 1,5 % (calculated as N) |
| Description |
Unctuous semi-solid |
| Identification |
|
| A.Solubility |
A. |
Solubility |
Soluble in fats. Insoluble in water. Partially soluble in ethanol and in acetone |
| A. |
Solubility |
| B.Positive tests for glycerol, for fatty acid and for phosphate |
B. |
Positive tests for glycerol, for fatty acid and for phosphate |
|
| B. |
Positive tests for glycerol, for fatty acid and for phosphate |
| Purity |
|
| Petroleum ether insoluble matter |
Not more than 2,5 % |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Cadmium |
Not more than 1 mg/kg |
| Heavy metals (as Pb) |
Not more than 10 mg/kg |
| B. |
Positive tests for glycerol, for fatty acid and for phosphate |
| Synonyms |
SAIB |
| Definition |
Sucrose acetate isobutyrate is a mixture of the reaction products formed by the esterification of food grade sucrose with acetic acid anhydride and isobutyric anhydride, followed by distillation. The mixture contains all possible combinations of esters in which the molar ratio of acetate to butyrate is about 2:6 |
| Einecs |
204-771-6 |
| Chemical name |
Sucrose diacetate hexaisobutyrate |
| Chemical formulae |
C40H62O19 |
| Molecular weight |
832-856 (approximate), C40H62O19: 846,9 |
| Assay |
Content not less than 98,8 % and not more than 101,9 % of C40H62O19 |
| Description |
A pale straw-coloured liquid, clear and free of sediment and having a bland odour |
| Identification |
|
| A.Solubility |
A. |
Solubility |
Insoluble in water. Soluble in most organic solvents |
| A. |
Solubility |
| B.Refractive index |
B. |
Refractive index |
[n]40D: 1,4492 -1,4504 |
| B. |
Refractive index |
| C.Specific gravity |
C. |
Specific gravity |
[d]25D: 1,141 -1,151 |
| C. |
Specific gravity |
| Purity |
|
| Triacetin |
Not more than 0,1 % |
| Acid value |
Not more than 0,2 |
| Saponification value |
Not less than 524 and not more than 540 |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 3 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Cadmium |
Not more than 1 mg/kg |
| Heavy metals (as Pb) |
Not more than 5 mg/kg |
| Synonyms |
Ester gum |
| Definition |
A complex mixture of tri- and diglycerol esters of resin acids from wood rosin. The rosin is obtained by the solvent extraction of aged pine stumps followed by a liquid-liquid solvent refining process. Excluded from these specifications are substances derived from gum rosin, and exudate of living pine trees, and substances derived from tall oil rosin, a by-product of kraft (paper) pulp processing. The final product is composed of approximately 90 % resin acids and 10 % neutrals (non-acidic compounds). The resin acid fraction is a complex mixture of isomeric diterpenoid monocarboxylic acids having the empirical molecular formula of C20H30O2, chiefly abietic acid. The substance is purified by steam stripping or by countercurrent steam distillation |
| Description |
Hard, yellow to pale amber-coloured solid |
| Identification |
|
| A.Solubility |
A. |
Solubility |
Insoluble in water, soluble in acetone |
| A. |
Solubility |
| B.Infrared absorption spectrum |
B. |
Infrared absorption spectrum |
Characteristic of the compound |
| B. |
Infrared absorption spectrum |
| Purity |
|
| Specific gravity of solution |
[d]2025not less than 0,935 when determined in a 50 % solution in d-limonene (97 %, boilding point 175,5 -176oC, d204: 0,84 ) |
| Ring and ball softening range |
Between 82oC and 90oC |
| Acid value |
Not less than 3 and not more than 9 |
| Hydroxyl value |
Not less than 15 and not more than 45 |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 2 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Cadmium |
Not more than 1 mg/kg |
| Heavy metals (as Pb) |
Not more than 10 mg/kg |
| Test for absence of tall oil rosin (sulphur test) |
When sulphur-containing organic compounds are heated in the presence of sodium formate, the sulphur is converted to hydrogen sulphide which can readily be detected by the use of lead acetate paper. A positive test indicates the use of tall oil rosin instead of wood rosin |
| B. |
Infrared absorption spectrum |
| Synonyms |
Disodium dihydrogen diphosphate |
| Disodium dihydrogen pyrophosphate |
| Sodium acid pyrophosphate |
| Disodium pyrophosphate |
| Definition |
|
| Chemical name |
Disodium dihydrogen diphosphate |
| Einecs |
231-835-0 |
| Chemical formula |
Na2H2P2O7 |
| Molecular weight |
221,94 |
| Assay |
Content not less than 95 % of disodium diphosphate |
| P2O5Content |
Not less than 63,0 % and not more than 64,5 % |
| Description |
White powder or grains |
| Identification |
|
| A.Positive tests for sodium and for phosphate |
A. |
Positive tests for sodium and for phosphate |
|
| A. |
Positive tests for sodium and for phosphate |
| B.Solubility |
B. |
Solubility |
Soluble in water |
| B. |
Solubility |
| C.pH of a 1 % solution |
C. |
pH of a 1 % solution |
Between 3,7 and 5,0 |
| C. |
pH of a 1 % solution |
| Purity |
|
| Loss on drying |
Not more than 0,5 % (105oC, four hours) |
| Water-insoluble matter |
Not more than 1 % |
| Fluoride |
Not more than 10 mg/kg (expressed as fluorine) |
| Arsenic |
Not more than 3 mg/kg |
| Cadmium |
Not more than 1 mg/kg |
| Lead |
Not more than 4 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| A. |
Positive tests for sodium and for phosphate |
| Synonyms |
Acid trisodium pyrophosphate |
| Trisodium monohydrogen diphosphate |
| Definition |
|
| Einecs |
238-735-6 |
| Chemical formula |
Monohydrate: Na3HP2O7· H2O |
| Anhydrous: Na3HP2O7 |
| Molecular weight |
Monohydrate: 261,95 |
| Anhydrous: 243,93 |
| Assay |
Content not less than 95 % on the anhydrous basis |
| P2O5content |
Not less than 57 % and not more than 59 % |
| Description |
White powder or grains, occurs anhydrous or as a monohydrate |
| Identification |
|
| A.Positive tests for sodium and for phosphate |
A. |
Positive tests for sodium and for phosphate |
|
| A. |
Positive tests for sodium and for phosphate |
| B.Solubility |
B. |
Solubility |
Soluble in water |
| B. |
Solubility |
| C.pH of a 1 % solution |
C. |
pH of a 1 % solution |
Between 6,7 and 7,5 |
| C. |
pH of a 1 % solution |
| Purity |
|
| Loss on ignition |
Not more than 4,5 % on the anhydrous compound |
| Not more than 11,5 % on the monohydrous basis |
| Loss on drying |
Not more than 0,5 % (105oC, four hours) |
| Water-insoluble matter |
Not more than 0,2 % |
| Fluoride |
Not more than 10 mg/kg (expressed as fluorine) |
| Arsenic |
Not more than 3 mg/kg |
| Cadmium |
Not more than 1 mg/kg |
| Lead |
Not more than 4 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| A. |
Positive tests for sodium and for phosphate |
| Synonyms |
Tetrasodium pyrophosphate |
| Sodium pyrophosphate |
| Definition |
|
| Chemical name |
Tetrasodium diphosphate |
| Einecs |
231-767-1 |
| Chemical formula |
Anhydrous: Na4P2O7 |
| Decahydrate: Na4P2O7· 10H2O |
| Molecular weight |
Anhydrous: 265,94 |
| Decahydrate: 446,09 |
| Assay |
Content not less than 95 % of Na4P2O7on the ignited basis |
| P2O5content |
Not less than 52,5 % and not more than 54,0 % |
| Description |
Colourless or white crystals, or a white crystalline or granular powder. The decahydrate effloresces slightly in dry air |
| Identification |
|
| A.Positive tests for sodium and for phosphate |
A. |
Positive tests for sodium and for phosphate |
|
| A. |
Positive tests for sodium and for phosphate |
| B.Solubility |
B. |
Solubility |
Soluble in water. Insoluble in ethanol |
| B. |
Solubility |
| C.pH of a 1 % solution |
C. |
pH of a 1 % solution |
Between 9,8 and 10,8 |
| C. |
pH of a 1 % solution |
| Purity |
|
| Loss on ignition |
Not more than 0,5 % for the anhydrous salt, not less than 38 % and not more than 42 % for the decahydrate, in both cases determined after drying at 105oC for four hours, followed by ignition at 550oC for 30 minutes |
| Water-insoluble matter |
Not more than 0,2 % |
| Fluoride |
Not more than 10 mg/kg (expressed as fluorine) |
| Arsenic |
Not more than 3 mg/kg |
| Cadmium |
Not more than 1 mg/kg |
| Lead |
Not more than 4 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| A. |
Positive tests for sodium and for phosphate |
| Synonyms |
Potassium pyrophosphate |
| Tetrapotassium pyrophosphate |
| Definition |
|
| Chemical name |
Tetrapotassium diphosphate |
| Einecs |
230-785-7 |
| Chemical formula |
K4P2O7 |
| Molecular weight |
330,34 (anhydrous) |
| Assay |
Content not less than 95 % on the ignited basis |
| P2O5content |
Not less than 42,0 % and not more than 43,7 % on the anhydrous basis |
| Description |
Colourless crystals or white, very hygroscopic powder |
| Identification |
|
| A.Positive tests for potassium and for phosphate |
A. |
Positive tests for potassium and for phosphate |
|
| A. |
Positive tests for potassium and for phosphate |
| B.Solubility |
B. |
Solubility |
Soluble in water, insoluble in ethanol |
| B. |
Solubility |
| C.pH of a 1 % solution |
C. |
pH of a 1 % solution |
Between 10,0 and 10,8 |
| C. |
pH of a 1 % solution |
| Purity |
|
| Loss on ignition |
Not more than 2 % after drying at 105oC for four hours and then ignition at 550oC for 30 minutes |
| Water-insoluble substances |
Not more than 0,2 % |
| Fluoride |
Not more than 10 mg/kg (expressed as fluorine) |
| Arsenic |
Not more than 3 mg/kg |
| Cadmium |
Not more than 1 mg/kg |
| Lead |
Not more than 4 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| A. |
Positive tests for potassium and for phosphate |
| Synonyms |
Calcium pyrophosphate |
| Definition |
|
| Chemical name |
Dicalcium diphosphate |
| Dicalcium pyrophosphate |
| Einecs |
232-221-5 |
| Chemical formula |
Ca2P2O7 |
| Molecular weight |
254,12 |
| Assay |
Content not less than 96 % |
| P2O5content |
Not less than 55 % and not more than 56 % |
| Description |
A fine, white, odourless powder |
| Identification |
|
| A.Positive tests for calcium and for phosphate |
A. |
Positive tests for calcium and for phosphate |
|
| A. |
Positive tests for calcium and for phosphate |
| B.Solubility |
B. |
Solubility |
Insoluble in water. Soluble in dilute hydrochloric and nitric acids |
| B. |
Solubility |
| C.pH of a 10 % suspension in water |
C. |
pH of a 10 % suspension in water |
Between 5,5 and 7,0 |
| C. |
pH of a 10 % suspension in water |
| Purity |
|
| Loss on ignition |
Not more than 1,5 % at 800oC ± 25oC for 30 minutes |
| Fluoride |
Not more than 50 mg/kg (expressed as fluorine) |
| Arsenic |
Not more than 3 mg/kg |
| Cadmium |
Not more than 1 mg/kg |
| Lead |
Not more than 4 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| A. |
Positive tests for calcium and for phosphate |
| C. |
pH of a 10 % suspension in water |
| Synonyms |
Acid calcium pyrophosphate |
| Monocalcium dihydrogen pyrophosphate |
| Definition |
|
| Chemical name |
Calcium dihydrogen diphosphate |
| Einecs |
238-933-2 |
| Chemical formula |
CaH2P2O7 |
| Molecular weight |
215,97 |
| Assay |
Content not less than 90 % on the anhydrous basis |
| P2O5content |
Not less than 61 % and not more than 64 % |
| Description |
White crystals or powder |
| Identification |
|
| A.Positive tests for calcium and for phosphate |
A. |
Positive tests for calcium and for phosphate |
|
| A. |
Positive tests for calcium and for phosphate |
| Purity |
|
| Acid-insoluble matter |
Not more than 0,4 % |
| Fluoride |
Not more than 30 mg/kg (expressed as fluorine) |
| Arsenic |
Not more than 3 mg/kg |
| Cadmium |
Not more than 1 mg/kg |
| Lead |
Not more than 4 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| A. |
Positive tests for calcium and for phosphate |
| Synonyms |
Pentasodium tripolyphosphate |
| Sodium tripolyphosphate |
| Definition |
|
| Chemical name |
Pentasodium triphosphate |
| Einecs |
231-838-7 |
| Chemical formula |
Na5O10P3· nH2O (n = 0 or 6) |
| Molecular weight |
367,86 |
| Assay |
Content not less than 85,0 % (anhydrous) or 65,0 % (hexahydrate) |
| P2O5content |
Not less than 56 % and not more than 59 % (anhydrous) or not less than 43 % and not more than 45 % (hexahydrate) |
| Description |
White, slightly hygroscopic granules or powder |
| Identification |
|
| A.Solubility |
A. |
Solubility |
Freely soluble in water. Insoluble in ethanol |
| A. |
Solubility |
| B.Positive tests for sodium and for phosphate |
B. |
Positive tests for sodium and for phosphate |
|
| B. |
Positive tests for sodium and for phosphate |
| C.pH of a 1 % solution |
C. |
pH of a 1 % solution |
Between 9,1 and 10,2 |
| C. |
pH of a 1 % solution |
| Purity |
|
| Loss on drying |
Anhydrous: Not more than 0,7 % (105oC, one hour) |
| Hexahydrate: Not more than 23,5 % (60oC, one hour, followed by drying at 105oC, four hours) |
| Water-insoluble substances |
Not more than 0,1 % |
| Higher polyphosphates |
Not more than 1 % |
| Fluoride |
Not more than 10 mg/kg (expressed as fluorine) |
| Arsenic |
Not more than 3 mg/kg |
| Cadmium |
Not more than 1 mg/kg |
| Lead |
Not more than 4 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| B. |
Positive tests for sodium and for phosphate |
| Synonyms |
Pentapotassium tripolyphosphate |
| Potassium triphosphate |
| Potassium tripolyphosphate |
| Definition |
|
| Chemical name |
Pentapotassium triphosphate |
| Pentapotassium tripolyphosphate |
| Einecs |
237-574-9 |
| Chemical formula |
K5O10P3 |
| Molecular weight |
448,42 |
| Assay |
Content not less than 85 % on the anhydrous basis |
| P2O5content |
Not less than 46,5 % and not more than 48 % |
| Description |
White, very hygroscopic powder or granules |
| Identification |
|
| A.Solubility |
A. |
Solubility |
Very soluble in water |
| A. |
Solubility |
| B.Positive tests for potassium and for phosphate |
B. |
Positive tests for potassium and for phosphate |
|
| B. |
Positive tests for potassium and for phosphate |
| C.pH of a 1 % solution |
C. |
pH of a 1 % solution |
Between 9,2 and 10,5 |
| C. |
pH of a 1 % solution |
| Purity |
|
| Loss on ignition |
Not more than 0,4 % (after drying at 105oC, four hours, followed by ignition at 550oC, 30 minutes) |
| Water-insoluble matter |
Not more than 2 % |
| Fluoride |
Not more than 10 mg/kg (expressed as fluorine) |
| Arsenic |
Not more than 3 mg/kg |
| Cadmium |
Not more than 1 mg/kg |
| Lead |
Not more than 4 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| B. |
Positive tests for potassium and for phosphate |
| Synonyms |
Sodium hexametaphosphate |
| Sodium tetrapolyphosphate |
| Graham's salt |
| Sodium polyphosphates, glassy |
| Sodium polymetaphosphate |
| Sodium metaphosphate |
| Definition |
Soluble sodium polyphosphates are obtained by fusion and subsequent chilling of sodium orthophosphates. These compounds are a class consisting of several amorphous, water-soluble polyphosphates composed of linear chains of metaphosphate units, (NaPO3)xwhere x ≥ 2, terminated by Na2PO4groups. These substances are usually identified by their Na2O/P2O5ratio or their P2O5content. The Na2O/P2O5ratios vary from about 1,3 for sodium tetrapolyphosphate, where x = approximately 4; to about 1,1 for Graham's salt, commonly called sodium hexametaphosphate, where x = 13 to 18; and to about 1,0 for the higher molecular weight sodium polyphosphates, where x = 20 to 100 or more. The pH of their solutions varies from 3,0 to 9,0 |
| Chemical name |
Sodium polyphosphate |
| Einecs |
272-808-3 |
| Chemical formula |
Heterogenous mixtures of sodium salts of linear condensed polyphosphoric acids of general formula H(n + 2)PnO(3n + 1)where ‘n’ is not less than 2 |
| Molecular weight |
(102)n |
| Assay P2O5content |
Not less than 60 % and not more than 71 % on the ignited basis |
| Description |
Colourless or white, transparent platelets, granules, or powders |
| Identification |
|
| A.Solubility |
A. |
Solubility |
Very soluble in water |
| A. |
Solubility |
| B.Positive tests for sodium and for phosphate |
B. |
Positive tests for sodium and for phosphate |
|
| B. |
Positive tests for sodium and for phosphate |
| C.pH of a 1 % solution |
C. |
pH of a 1 % solution |
Between 3,0 and 9,0 |
| C. |
pH of a 1 % solution |
| Purity |
|
| Loss on ignition |
Not more than 1 % |
| Water-insoluble matter |
Not more than 0,1 % |
| Fluoride |
Not more than 10 mg/kg (expressed as fluorine) |
| Arsenic |
Not more than 3 mg/kg |
| Cadmium |
Not more than 1 mg/kg |
| Lead |
Not more than 4 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| B. |
Positive tests for sodium and for phosphate |
| Synonyms |
Insoluble sodium metaphosphate |
| Maddrell's salt |
| Insoluble sodium polyphosphate, IMP |
| Definition |
Insoluble sodium metaphosphate is a high molecular weight sodium polyphosphate composed of two long metaphosphate chains (NaPO3)xthat spiral in opposite directions about a common axis. The Na2O/P2O5ratio is about 1,0 . The pH of 1 in 3 suspension in water is about 6,5 |
| Chemical name |
Sodium polyphosphate |
| Einecs |
272-808-3 |
| Chemical formula |
Heterogenous mixtures of sodium salts of linear condensed polyphosphoric acids of general formula H(n + 2)PnO(3n + 1)where ‘n’ is not less than 2 |
| Molecular weight |
(102)n |
| P2O5content |
Not less than 68,7 % and not more than 70,0 % |
| Description |
White crystalline powder |
| Identification |
|
| A.Solubility |
A. |
Solubility |
Insoluble in water, soluble in mineral acids and in solutions of potassium and ammonium (but not sodium) chlorides |
| A. |
Solubility |
| B.Positive tests for sodium and for phosphate |
B. |
Positive tests for sodium and for phosphate |
|
| B. |
Positive tests for sodium and for phosphate |
| C.pH of 1 in 3 suspension in water |
C. |
pH of 1 in 3 suspension in water |
About 6,5 |
| C. |
pH of 1 in 3 suspension in water |
| Purity |
|
| Fluoride |
Not more than 10 mg/kg (expressed as fluorine) |
| Arsenic |
Not more than 3 mg/kg |
| Cadmium |
Not more than 1 mg/kg |
| Lead |
Not more than 4 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| B. |
Positive tests for sodium and for phosphate |
| C. |
pH of 1 in 3 suspension in water |
| Synonyms |
Potassium metaphosphate |
| Potassium polymetaphosphate |
| Kurrol salt |
| Definition |
|
| Chemical name |
Potassium polyphosphate |
| Einecs |
232-212-6 |
| Chemical formula |
(KPO3)n |
| Heterogenous mixtures of potassium salts of linear condensed polyphosphoric acids of general formula H(n + 2)PnO(3n + 1)where ‘n’ is not less than 2 |
| Molecular weight |
(118)n |
| P2O5content |
Not less than 53,5 % and not more than 61,5 % on the ignited basis |
| Description |
Fine white powder or crystals or colourless glassy platelets |
| Identification |
|
| A.Solubility |
A. |
Solubility |
1 g dissolves in 100 ml of a 1 in 25 solution of sodium acetate |
| A. |
Solubility |
| B.Positive tests for potassium and for phosphate |
B. |
Positive tests for potassium and for phosphate |
|
| B. |
Positive tests for potassium and for phosphate |
| C.pH of a 1 % suspension |
C. |
pH of a 1 % suspension |
Not more than 7,8 |
| C. |
pH of a 1 % suspension |
| Purity |
|
| Loss on ignition |
Not more than 2 % (105oC, four hours followed by ignition at 550oC, 30 minutes) |
| Cyclic phosphate |
Not more than 8 % on P2O5content |
| Fluoride |
Not more than 10 mg/kg (expressed as fluorine) |
| Arsenic |
Not more than 3 mg/kg |
| Cadmium |
Not more than 1 mg/kg |
| Lead |
Not more than 4 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| B. |
Positive tests for potassium and for phosphate |
| C. |
pH of a 1 % suspension |
| Synonym |
Sodium calcium polyphosphate, glassy |
| Definition |
|
| Chemical name |
Sodium calcium polyphosphate |
| Einecs |
233-782-9 |
| Chemical formula |
(NaPO3)nCaO where n is typically 5 |
| Assay |
Not less than 61 % and not more than 69 % as P2O5 |
| Description |
White glassy crystals, spheres |
| Identification |
|
| A.pH of a 1 % m/m slurry |
A. |
pH of a 1 % m/m slurry |
Approximately 5 to 7 |
| A. |
pH of a 1 % m/m slurry |
| B.CaO content |
B. |
CaO content |
7 %-15 % m/m |
| B. |
CaO content |
| Purity |
|
| Fluoride |
Not more than 10 mg/kg |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 4 mg/kg |
| Cadmium |
Not more than 1 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| A. |
pH of a 1 % m/m slurry |
| Synonyms |
Calcium metaphosphate |
| Calcium polymetaphosphate |
| Definition |
|
| Chemical name |
Calcium polyphosphate |
| Einecs |
236-769-6 |
| Chemical formula |
(CaP2O6)n |
| Heterogenous mixtures of calcium salts of condensed polyphosphoric acids of general formula H(n + 2)PnO(n + 1)where ‘n’ is not less than 2 |
| Molecular weight |
(198)n |
| P2O5content |
Not less than 71 % and not more than 73 % on the ignited basis |
| Description |
Odourless, colourless crystals or white powder |
| Identification |
|
| A.Solubility |
A. |
Solubility |
Usually sparingly soluble in water. Soluble in acid medium |
| A. |
Solubility |
| B.Positive tests for calcium and for phosphate |
B. |
Positive tests for calcium and for phosphate |
|
| B. |
Positive tests for calcium and for phosphate |
| C.CaO content |
C. |
CaO content |
27 to 29,5 % |
| C. |
CaO content |
| Purity |
|
| Loss on ignition |
Not more than 2 % (105oC, four hours followed by ignition at 550oC, 30 minutes) |
| Cyclic phosphate |
Not more than 8 % on P2O5content |
| Fluoride |
Not more than 30 mg/kg (expressed as fluorine) |
| Arsenic |
Not more than 3 mg/kg |
| Cadmium |
Not more than 1 mg/kg |
| Lead |
Not more than 4 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| B. |
Positive tests for calcium and for phosphate |
| Definition |
Beta-cyclodextrin is a non-reducing cyclic saccharide consisting of seven α-1,4-linked D-glucopyranosyl units. The product is manufactured by the action of the enzyme cycloglycosyltransferase (CGTase) obtained fromBacillus circulans, Paenibacillus maceransor recombinantBacillus licheniformisstrain SJ1608 on partially hydrolysed starch |
| Chemical name |
Cycloheptaamylose |
| Einecs |
231-493-2 |
| Chemical formula |
(C6H10O5)7 |
| Molecular weight |
1 135 |
| Assay |
Content not less than 98,0 % of (C6H10O5)7on an anhydrous basis |
| Description |
Virtually odourless white or almost white crystalline solid |
| Identification |
|
| A.Solubility |
A. |
Solubility |
Sparingly soluble in water; freely soluble in hot water; slightly soluble in ethanol |
| A. |
Solubility |
| B.Specific rotation |
B. |
Specific rotation |
[α]25D: + 160oto + 164o(1 % solution) |
| B. |
Specific rotation |
| Purity |
|
| Water |
Not more than 14 % (Karl Fischer method) |
| Other cyclodextrins |
Not more than 2 % on an anhydrous basis |
| Residual solvents (toluene and trichloroethylene) |
Not more than 1 mg/kg for each solvent |
| Sulphated ash |
Not more than 0,1 % |
| Arsenic |
Not more than 1 mg/kg |
| Lead |
Not more than 1 mg/kg |
| Synonyms |
Cellulose gel |
| Definition |
Microcrystalline cellulose is purified, partally depolymerised cellulose prepared by treating alpha-cellulose, obtained as a pulp from natural strains of fibrous plant material, with mineral acids. The degree of polymerisation is typically less than 400 |
| Chemical name |
Cellulose |
| Einecs |
232-674-9 |
| Chemical formula |
(C6H10O5)n |
| Molecular weight |
About 36 000 |
| Assay |
Not less than 97 % calculated as cellulose on the anhydrous basis |
| Description |
A fine white or almost white odourless powder |
| Identification |
|
| A.Solubility |
A. |
Solubility |
Insoluble in water, ethanol, ether and dilute mineral acids. Slightly soluble in sodium hydroxide solution |
| A. |
Solubility |
| B.Colour reaction |
B. |
Colour reaction |
To 1 mg of the sample, add 1 ml of phosphoric acid and heat on a water bath for 30 minutes. Add 4 ml of a 1 in 4 solution of pyrocatechol in phosphoric acid and heat for 30 minutes. A red colour is produced |
| B. |
Colour reaction |
| C.To be identified by IR spectroscopy |
C. |
To be identified by IR spectroscopy |
|
| C. |
To be identified by IR spectroscopy |
| D.Suspension test |
D. |
Suspension test |
Mix 30 g of the sample with 270 ml of water in a high-speed (12 000 rpm) power blender for 5 minutes. The resultant mixture will be either a free-following suspension or a heavy, lumpy suspension which flows poorly, if at all, settles only slightly and contains many trapped air bubbles. If a free-flowing suspension is obtained, transfer 100 ml into a 100-ml graduated cylinder and allow to stand for 1 hour. The solids settles and a supernatant liquid appears |
| D. |
Suspension test |
| Purity |
|
| Loss on drying |
Not more than 7 % (105oC, 3 hours) |
| Water-soluble matter |
Not more than 0,24 % |
| Sulphated ash |
Not more than 0,5 % determined at 800 ± 25oC |
| pH of a 10 % suspension in water |
The pH of the supernatant liquid is between 5,0 and 7,5 |
| Starch |
Not detectable |
| To 20 ml of the dispersion obtained in identification, test D, add a few drops of iodine solution and mix. No purplish to blue or blue colour should be produced |
| Particle size |
Not less than 5μm (not more than 10 % of particles of less than 5μm) |
| Carboxyl groups |
Not more than 1 % |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Cadmium |
Not more than 1 mg/kg |
| Heavy metals (as Pb) |
Not more than 10 mg/kg |
| C. |
To be identified by IR spectroscopy |
| Definition |
Purified, mechanically disintegrated celluslose prepared by processing alpha-cellulose obtained as a pulp from natural strains of fibrous plant materials |
| Chemical name |
Cellulose |
| Linear polymer of 1:4 linked glucose residues |
| Einecs |
232-674-9 |
| Chemical formula |
(C6H10O5)n |
| Molecular weight |
(162)n(n is predominantly 1 000 and greater) |
| Assay |
Content not less than 92 % |
| Description |
A white, odourless powder |
| Identification |
|
| A.Solubility |
A. |
Solubility |
Insoluble in water, ethanol, ether and dilute mineral acids. Slightly soluble in sodium hydroxide solution |
| A. |
Solubility |
| B.Suspension test |
B. |
Suspension test |
Mix 30 g of the sample with 270 ml of water in a high-speed (12 000 rpm) power blender for 5 minutes. The resultant mixture will be either a free-flowing suspension or a heavy, lumpy suspension which flows poorly, if at all, settles only slightly and contains many trapped air bubbles. If a free-flowing suspension is obtained, transfer 100 ml into a 100-ml graduated cylinder and allow to stand for 1 hour. The solids settle and a supernatant liquid appears |
| B. |
Suspension test |
| Purity |
|
| Loss on drying |
Not more than 7 % (105oC, 3 hours) |
| Water-soluble matter |
Not more than 1,0 % |
| Sulphated ash |
Not more than 0,3 % determined at 800 ± 25oC |
| pH of a 10 % suspension in water |
The pH of the supernatant liquid is between 5,0 and 7,5 |
| Starch |
Not detectable |
| To 20 ml of the dispersion obtained in identification, test B, add a few drops of iodine solution and mix. No purplish to blue or blue colour should be produced |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Cadmium |
Not more than 1 mg/kg |
| Heavy metals (as Pb) |
Not more than 10 mg/kg |
| Particle size |
Not less than 5μm (not more than 10 % of particles of less than 5μm) |
| Synonyms |
Cellulose methyl ether |
| Definition |
Methyl cellulose is cellulose obtained directly from natural strains of fibrous plant material and partially etherified with methyl groups |
| Chemical name |
Methyl ether of cellulose |
| Chemical formula |
The polymers contain substituted anhydroglucose units with the following general formula: |
| C6H7O2(OR1)(OR2)(OR3) where R1, R2, R3each may be one of the following:—H—CH3—or CH2CH3 |
— |
H |
— |
CH3 |
— |
or CH2CH3 |
| — |
H |
| — |
CH3 |
| — |
or CH2CH3 |
| Molecular weight |
From about 20 000 to 380 000 |
| Assay |
Content not less than 25 % and not more than 33 % of methoxyl groups (-OCH3) and not more than 5 % of hydroxyethoxyl groups (-OCH2CH2OH) |
| Description |
Slightly hygroscopic white or slightly yellowish or greyish odourless and tasteless, granular or fibrous powder |
| Identification |
|
| A.Solubility |
A. |
Solubility |
Swelling in water, producing a clear to opalescent, viscous, colloidal solution. |
| A. |
Solubility |
| Insoluble in ethanol, ether and chloroform. |
| Soluble in glacial acetic acid |
| Purity |
|
| Loss on drying |
Not more than 10 % (105oC, 3 hours) |
| Sulphated ash |
Not more than 1,5 % determined at 800 ± 25oC |
| pH of a 1 % colloidal solution |
Not less than 5,0 and not more than 8,0 |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Cadmium |
Not more than 1 mg/kg |
| Heavy metals (as Pb) |
Not more than 20 mg/kg |
| Synonyms |
Cellulose ethyl ether |
| Definition |
Ethyl cellulose is cellulose obtained directly from fibrous plant material and partially etherified with ethyl groups |
| Chemical name |
Ethyl ether of cellulose |
| Chemical formula |
The polymers contain substituted anhydroglucose units with the following general formula: |
| C6H7O2(OR1)(OR2) where R1and R2may be any of the following:—H—CH2CH3 |
— |
H |
— |
CH2CH3 |
| — |
H |
| — |
CH2CH3 |
| Assay |
Content not less than 44 % and not more than 50 % of ethoxyl groups (-OC2H5) on the dried basis (equivalent to not more than 2,6 ethoxyl groups per anhydroglucose unit) |
| Description |
Slightly hygroscopic white to off-white, odourless and tasteless powder |
| Identification |
|
| A.Solubility |
A. |
Solubility |
Practically insoluble in water, in glycerol and in propane-1,2-diol but soluble in varying proportions in certain organic solvents depending upon the ethoxyl content. Ethyl cellulose containing less than 46 to 48 % of ethoxyl groups is freely soluble in tetrahydrofuran, in methyl acetate, in chloroform and in aromatic hydrocarbon ethanol mixtures. Ethyl cellulose containing 46 to 48 % or more of ethoxyl groups is freely soluble in ethanol, in methanol, in toluene, in chloroform and in ethyl acetate |
| A. |
Solubility |
| B.Film forming test |
B. |
Film forming test |
Dissolve 5 g of the sample in 95 g of an 80:20 (w/w) mixture of toluene ethanol. A clear, stable, slightly yellow solution is formed. Pour a few ml of the solution onto a glass plate and allow the solvent to evaporate. A thick, tough, continuous, clear film remains. The film is flammable |
| B. |
Film forming test |
| Purity |
|
| Loss on drying |
Not more than 3 % (105oC, 2 hours) |
| Sulphated ash |
Not more than 0,4 % |
| pH of a 1 % colloidal solution |
Neutral to litmus |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 2 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Cadmium |
Not more than 1 mg/kg |
| Synonyms |
Cellulose hydroxypropyl ether |
| Definition |
Hydroxypropylcellulose is cellulose obtained directly from natural strains of fibrous plant material and partially etherified with hydroxypropyl groups |
| Chemical name |
Hydroxypropyl ether of cellulose |
| Chemical formula |
The polymers contain substituted anhydroglucose units with the following general formula: |
| C6H7O2(OR1)(OR2)(OR3), where R1, R2, R3each may be one of the following:—H—CH2CHOHCH3—CH2CHO(CH2CHOHCH3)CH3—CH2CHO[CH2CHO(CH2CHOHCH3)CH3]CH3 |
— |
H |
— |
CH2CHOHCH3 |
— |
CH2CHO(CH2CHOHCH3)CH3 |
— |
CH2CHO[CH2CHO(CH2CHOHCH3)CH3]CH3 |
| — |
H |
| — |
CH2CHOHCH3 |
| — |
CH2CHO(CH2CHOHCH3)CH3 |
| — |
CH2CHO[CH2CHO(CH2CHOHCH3)CH3]CH3 |
| Molecular weight |
From about 30 000 to 1 000 000 |
| Assay |
Content not less than 80,5 % of hydroxypropoxyl groups (-OCH2CHOHCH3) equivalent to not more than 4,6 hydroxypropyl groups per anhydroglucose unit on the anhydrous basis |
| Description |
Slightly hygroscopic white or slightly yellowish or greyish odourless and tasteless, granular or fibrous powder |
| Identification |
|
| A.Solubility |
A. |
Solubility |
Swelling in water, producing a clear to opalescent, viscous, colloidal solution. Soluble in ethanol. Insoluble in ether |
| A. |
Solubility |
| B.Gas chromatography |
B. |
Gas chromatography |
Determine the substituents by gas chromotography |
| B. |
Gas chromatography |
| Purity |
|
| Loss on drying |
Not more than 10 % (105oC, 3 hours) |
| Sulphated ash |
Not more than 0,5 % determined at 800 ± 25oC |
| pH of a 1 % colloidal solution |
Not less than 5,0 and not more than 8,0 |
| Propylene chlorohydrins |
Not more than 0,1 mg/kg |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Cadmium |
Not more than 1 mg/kg |
| Heavy metals (as Pb) |
Not more than 20 mg/kg |
| — |
CH2CHO[CH2CHO(CH2CHOHCH3)CH3]CH3 |
| Definition |
Hydroxypropyl methyl cellulose is cellulose obtained directly from natural strains of fibrous plant material and partially etherified with methyl groups and containing a small degree of hydroxypropyl substitution |
| Chemical name |
2-Hydroxypropyl ether of methylcellulose |
| Chemical formula |
The polymers contain substituted anhydroglucose units with the following general formula: |
| C6H7O2(OR1)(OR2)(OR3), where R1, R2R3each may be one of the following:—H—CH3—CH2CHOHCH3—CH2CHO (CH2CHOHCH3) CH3—CH2CHO[CH2CHO (CH2CHOHCH3) CH3]CH3 |
— |
H |
— |
CH3 |
— |
CH2CHOHCH3 |
— |
CH2CHO (CH2CHOHCH3) CH3 |
— |
CH2CHO[CH2CHO (CH2CHOHCH3) CH3]CH3 |
| — |
H |
| — |
CH3 |
| — |
CH2CHOHCH3 |
| — |
CH2CHO (CH2CHOHCH3) CH3 |
| — |
CH2CHO[CH2CHO (CH2CHOHCH3) CH3]CH3 |
| Molecular weight |
From about 13 000 to 200 000 |
| Assay |
Content not less than 19 % and not more than 30 % methoxyl groups (-OCH3) and not less than 3 % and not more than 12 % hydroxypropoxyl groups (-OCH2CHOHCH3), on the anhydrous basis |
| Description |
Slightly hygroscopic white or slightly yellowish or greyish odourless and tasteless, granular or fibrous powder |
| Identification |
|
| A.Solubility |
A. |
Solubility |
Swelling in water, producing a clear to opalescent, viscous, colloidal solution. Insoluble in ethanol |
| A. |
Solubility |
| B.Gas chromatography |
B. |
Gas chromatography |
Determine the substituents by gas chromatography |
| B. |
Gas chromatography |
| Purity |
|
| Loss on drying |
Not more than 10 % (105oC, 3 hours) |
| Sulphated ash |
Not more than 1,5 % for products with viscosities of 50 mPa.s or above |
| Not more than 3 % for products with viscosities below 50 mPa.s |
| pH of a 1 % colloidal solution |
Not less than 5,0 and not more than 8,0 |
| Propylene chlorohydrins |
Not more than 0,1 mg/kg |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Cadmium |
Not more than 1 mg/kg |
| Heavy metals (as Pb) |
Not more than 20 mg/kg |
| — |
CH2CHO (CH2CHOHCH3) CH3 |
| — |
CH2CHO[CH2CHO (CH2CHOHCH3) CH3]CH3 |
| Synonyms |
Methylethylcellulose |
| Definition |
Ethyl methyl cellulose is cellulose obtained directly from natural strains of fibrous plant material and partially etherified with methyl and ethyl groups |
| Chemical name |
Ethyl methyl ether of cellulose |
| Chemical formula |
The polymers contain substituted anhydroglucose units with the following general formula: |
| C6H7O2(OR1)(OR2)(OR3), where R1, R2R3each may be one of the following:—H—CH3—CH2CH3 |
— |
H |
— |
CH3 |
— |
CH2CH3 |
| — |
H |
| — |
CH3 |
| — |
CH2CH3 |
| Molecular weight |
From about 30 000 to 40 000 |
| Assay |
Content on the anhydrous basis not less than 3,5 % and not more than 6,5 % of methoxyl groups (-OCH3) and not less than 14,5 % and not more than 19 % of ethoxyl groups (-OCH2CH3), and not less than 13,2 % and not more than 19,6 % of total alkoxyl groups, calculated as methoxyl |
| Description |
Slightly hygroscopic white or slightly yellowish or greyish odourless and tasteless, granular or fibrous powder |
| Identification |
|
| A.Solubility |
A. |
Solubility |
Swelling in water, producing a clear to opalescent, viscous, colloidal solution. Soluble in ethanol. Insoluble in ether |
| A. |
Solubility |
| Purity |
|
| Loss on drying |
Not more than 15 % for the fibrous form, and not more than 10 % for the powdered form (105oC to constant weight) |
| Sulphated ash |
Not more than 0,6 % |
| pH of a 1 % colloidal solution |
Not less than 5,0 and not more than 8,0 |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Cadmium |
Not more than 1 mg/kg |
| Heavy metals (as Pb) |
Not more than 20 mg/kg |
| Synonyms |
Carboxy methyl cellulose |
| CMC |
| NaCMC |
| Sodium CMC |
| Cellulose gum |
| Definition |
Carboxy methyl cellulose is the partial sodium salt of a carboxymethyl ether of cellulose, the cellulose being obtained directly from natural strains of fibrous plant material |
| Chemical name |
Sodium salt of the carboxymethyl ether of cellulose |
| Chemical formula |
The polymers contain substituted anhydroglucose units with the following general formula: |
| C6H7O2(OR1)(OR2)(OR3), where R1, R2R3each may be one of the following:—H—CH2COONa—CH2COOH |
— |
H |
— |
CH2COONa |
— |
CH2COOH |
| — |
H |
| — |
CH2COONa |
| — |
CH2COOH |
| Molecular weight |
Higher than approximately 17 000 (degree of polymerisation approximately 100) |
| Assay |
Content on the anhydrous basis not less than 99,5 % |
| Description |
Slightly hygroscopic white or slightly yellowish or greyish odourless and tasteless, granular or fibrous powder |
| Identification |
|
| A.Solubility |
A. |
Solubility |
Yields a viscous colloidal solution with water. Insoluble in ethanol |
| A. |
Solubility |
| B.Foam test |
B. |
Foam test |
A 0,1 % solution of the sample is shaken vigorously. No layer of foam appears. (This test permits the distinction of sodium carboxymethyl cellulose from other cellulose ethers) |
| B. |
Foam test |
| C.Precipitate formation |
C. |
Precipitate formation |
To 5 ml of a 0,5 % solution of the sample, add 5 ml of 5 % solution of copper sulphate or of aluminium sulphate. A precipitate appears. (This test permits the distinction of sodium carboxymethyl cellulose from other cellulose ethers and from gelatine, locust bean gum and tragacanth) |
| C. |
Precipitate formation |
| D.Colour reaction |
D. |
Colour reaction |
Add 0,5 g powdered carboxy methyl cellulose sodium to 50 ml of water, while stirring to produce an uniform dispersion. Continue the stirring until a clear solution is produced, and use the solution for the following test:To 1 mg of the sample, diluted with an equal volume of water, in a small test tube, add 5 drops of 1-naphthol solution. Incline the test tube, and carefully introduce down the side of the tube 2 ml of sulphuric acid so that it forms a lower layer. A red-purple colour develops at the interface |
| D. |
Colour reaction |
| Purity |
|
| Degree of substitution |
Not less than 0,2 and not more than 1,5 carboxymethyl groups (-CH2COOH) per anhydroglucose unit |
| Loss on drying |
Not more than 12 % (105oC to constant weight) |
| pH of a 1 % colloidal solution |
Not less than 5,0 and not more than 8,5 |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Cadmium |
Not more than 1 mg/kg |
| Heavy metals (as Pb) |
Not more than 20 mg/kg |
| Total glycolate |
Not more than 0,4 %, calculated as sodium glycolate on the anhydrous basis |
| Sodium |
Not more than 12,4 % on the anhydrous basis |
| Synonyms |
Cross-linked carboxymethyl cellulose |
| Cross-linked CMC |
| Cross-linked sodium CMC |
| Cross-linked cellulose gum |
| Definition |
Cross-linked sodium carboxymethyl cellulose is the sodium salt of thermally cross-linked partly O-carboxymethylated cellulose |
| Chemical name |
Sodium salt of the cross-linked carboxymethyl ether cellulose |
| Chemical formula |
The polymers containing substituted anhydroglucose units with the general formula: |
| C6H7O2(OR1)(OR2)(OR3) |
| where R1, R2and R3may be any of the following:—H—CH2COONa—CH2COOH |
— |
H |
— |
CH2COONa |
— |
CH2COOH |
| — |
H |
| — |
CH2COONa |
| — |
CH2COOH |
| Description |
Slightly hygroscopic, white to off white, odourless powder |
| Identification |
|
| A. |
Shake 1 g with 100 ml of a solution containing 4 mg/kg methylene blue and allow to settle. The substance to be examined absorbs the methylene blue and settles as a blue, fibrous mass |
| B. |
Shake 1 g with 50 ml of water. Transfer 1 ml of the mixture to a test tube, add 1 ml water and 0,05 ml of freshly prepared 40 g/l solution of alpha-naphthol in methanol. Incline the test tube and add carefully 2 ml of sulphuric acid down the side so that it forms a lower layer. A reddish-violet colour develops at the interface |
| C. |
It gives the reaction of sodium |
| Purity |
|
| Loss on drying |
Not more than 6 % (105oC, 3h) |
| Water solubles |
Not more than 10 % |
| Degree of substitution |
Not less than 0,2 and not more than 1,5 carboxymethyl groups per anhydroglucose unit |
| pH of 1 % |
Not less than 5,0 and not more than 7,0 |
| Sodium content |
Not more than 12,4 % on anhydrous basis |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Cadmium |
Not more than 1 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Synonyms |
Sodium carboxymethyl cellulose, enzymatically hydrolysed |
| Definition |
Enzymatically hydrolysed carboxymethylcellulose is obtained from carboxymethylcellulose by enzymatic digestion with a cellulase produced byTrichoderma longibrachiatum(formerlyT. reesei) |
| Chemical name |
Carboxymethyl cellulose, sodium, partially enzymatically hydrolysed |
| Chemical formula |
Sodium salts of polymers containing substituted anhydroglucose units with the general formula: |
| [C6H7O2(OH)x(OCH2COONa)y]n |
| where n is the degree of polymerisation |
| x = 1,50 to 2,80 |
| y = 0,2 to 1,50 |
| x + y = 3,0 |
| (y = degree of substitution) |
| Formula weight |
178,14 where y = 0,20 |
| 282,18 where y = 1,50 |
| Macromolecules: Not less than 800 (n about 4) |
| Assay |
Not less than 99,5 %, including mono- and disaccharides, on the dried basis |
| Description |
White or slightly yellowish or greyish, odourless, slightly hygroscopic granular or fibrous powder |
| Identification |
|
| A.Solubility |
A. |
Solubility |
Soluble in water, insoluble in ethanol |
| A. |
Solubility |
| B.Foam test |
B. |
Foam test |
Vigorously shake a 0,1 % solution of the sample. No layer of foam appears. This test distinguishes sodium carboxymethyl cellulose, whether hydrolysed or not, from other cellulose ethers and from alginates and natural gums |
| B. |
Foam test |
| C.Precipitate formation |
C. |
Precipitate formation |
To 5 ml of a 0,5 % solution of the sample add 5 ml of a 5 % solution of copper or aluminium sulphate. A precipitate appears. This test distinguishes sodium carboxymethyl cellulose, whether hydrolysed or not, from other cellulose ethers and from gelatine, carob bean gum and tragacanth gum |
| C. |
Precipitate formation |
| D.Colour reaction |
D. |
Colour reaction |
Add 0,5 g of the powdered sample to 50 ml of water, while stirring to produce a uniform dispersion. Continue the stirring until a clear solution is produced. Dilute 1 ml of the solution with 1 ml of water in a small test tube. Add 5 drops of 1-naphthol TS. Incline the tube, and carefully introduce down the side of the tube 2 ml of sulphuric acid so that it forms a lower layer. A red-purple colour develops at the interface |
| D. |
Colour reaction |
| E.Viscosity (60 % solids) |
E. |
Viscosity (60 % solids) |
Not less than 2,500 kgm-1s-1at 25oC corresponding to an average molecule weight of 5 000 D |
| E. |
Viscosity (60 % solids) |
| Purity |
|
| Loss on drying |
Not more than 12 % (105oC to constant weight) |
| Degree of substitution |
Not less than 0,2 and not more than 1,5 carboxymethyl groups per anhydroglucose unit on the dried basis |
| pH of a 1 % colloidal solution |
Not less than 6,0 and not more than 8,5 |
| Sodium chloride and sodium glycolate |
Not more than 0,5 % singly or in combination |
| Residual enzyme activity |
Passes test. No change in viscosity of test solution occurs, which indicates hydrolysis of the sodium carboxymethyl cellulose |
| Lead |
Not more than 3 mg/kg |
| E. |
Viscosity (60 % solids) |
| Definition |
Sodium, potassium and calcium salts of fatty acids occurring in food oils and fats, these salts being obtained either from edible fats and oils or from distilled food fatty acids |
| Assay |
Content on the anhydrous basis not less than 95 % |
| Description |
White or creamy white light powders, flakes or semi-solids |
| Identification |
|
| A.Solubility |
A. |
Solubility |
Sodium and potassium salts: soluble in water and ethanol calcium salts: |
| A. |
Solubility |
| insoluble in water, ethanol and ether |
| B.Positive tests for cations and for fatty acids |
B. |
Positive tests for cations and for fatty acids |
|
| B. |
Positive tests for cations and for fatty acids |
| Purity |
|
| Sodium |
Not less than 9 % and not more than 14 % expressed as Na2O |
| Potassium |
Not less than 13 % and not more than 21,5 % expressed as K2O |
| Calcium |
Not less than 8,5 % and not more than 13 % expressed as CaO |
| Unsaponifiable matter |
Not more than 2 % |
| Free fatty acids |
Not more than 3 % estimated as oleic acid |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Cadmium |
Not more than 1 mg/kg |
| Heavy metals (as Pb) |
Not more than 10 mg/kg |
| Free alkali |
Not more than 0,1 % expressed as NaOH |
| Matter insoluble in alcohol |
Not more than 0,2 % (sodium and potassium salts only) |
| B. |
Positive tests for cations and for fatty acids |
| Definition |
Magnesium salts of fatty acids occurring in foods oils and fats, these salts being obtained either from edible fats and oils or from distilled food fatty acids |
| Assay |
Content on the anhydrous basis not less than 95 % |
| Description |
White or creamy-white light powders, flakes or semi-solids |
| Identification |
|
| A.Solubility |
A. |
Solubility |
Insoluble in water, partially soluble in ethanol and ether |
| A. |
Solubility |
| B.Positive tests for magnesium and for fatty acids |
B. |
Positive tests for magnesium and for fatty acids |
|
| B. |
Positive tests for magnesium and for fatty acids |
| Purity |
|
| Magnesium |
Not less than 6,5 % and not more than 11 % expressed as MgO |
| Free alkali |
Not more than 0,1 % expressed as MgO |
| Unsaponifiable matter |
Not more than 2 % |
| Free fatty acids |
Not more than 3 % estimated as oleic acid |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Cadmium |
Not more than 1 mg/kg |
| Heavy metals (as Pb) |
Not more than 10 mg/kg |
| B. |
Positive tests for magnesium and for fatty acids |
| Synonyms |
Glyceryl monostearate |
| Glyceryl monopalmitate |
| Glyceryl monooleate, etc. |
| Monostearin, monopalmitin, monoolein, etc. |
| GMS (for glyceryl monostearate) |
| Definition |
Mono- and diglycerides of fatty acids consist of mixtures of glycerol mono-, di- and triesters of fatty acids occurring in food oils and fats. They may contain small amounts of free fatty acids and glycerol |
| Assay |
Content of mono- and diesters: not less than 70 % |
| Description |
The product varies from a pale yellow to pale brown oily liquid to a white or slightly off-white hard waxy solid. The solids may be in the form of flakes, powders or small beads |
| Identification |
|
| A.Infrared spectrum |
A. |
Infrared spectrum |
Characteristic of a partial fatty acid ester of a polyol |
| A. |
Infrared spectrum |
| B.Positive tests for glycerol and for fatty acids |
B. |
Positive tests for glycerol and for fatty acids |
|
| B. |
Positive tests for glycerol and for fatty acids |
| C.Solubility |
C. |
Solubility |
Insoluble in water, soluble in ethanol and toluene |
| C. |
Solubility |
| Purity |
|
| Water content |
Not more than 2 % (Karl Fischer method) |
| Acid value |
Not more than 6 |
| Free glycerol |
Not more than 7 % |
| Polyglycerols |
Not more than 4 % diglycerol and not more than 1 % higher polyglycerols both based on total glycerol content |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Cadmium |
Not more than 1 mg/kg |
| Heavy metals (as Pb) |
Not more than 10 mg/kg |
| Total glycerol |
Not less than 16 % and not more than 33 % |
| Sulphated ash |
Not more than 0,5 % determined at 800 ± 25oC |
| Note:Purity criteria apply to the additive free of sodium, potassium and calcium salts of fatty acids, however these substances may be present up to a maximum level of 6 % (expressed as sodium oleate). |
Note: |
Purity criteria apply to the additive free of sodium, potassium and calcium salts of fatty acids, however these substances may be present up to a maximum level of 6 % (expressed as sodium oleate). |
| Note: |
Purity criteria apply to the additive free of sodium, potassium and calcium salts of fatty acids, however these substances may be present up to a maximum level of 6 % (expressed as sodium oleate). |
| B. |
Positive tests for glycerol and for fatty acids |
| Note: |
Purity criteria apply to the additive free of sodium, potassium and calcium salts of fatty acids, however these substances may be present up to a maximum level of 6 % (expressed as sodium oleate). |
| Synonyms |
Acetic acid esters of mono- and diglycerides |
| Acetoglycerides |
| Acetylated mono- and diglycerides |
| Acetic and fatty acid esters of glycerol |
| Definition |
Esters of glycerol with acetic and fatty acids occurring in food fats and oils. They may contain small amounts of free glycerol, free fatty acids, free acetic acid and free glycerides |
| Description |
Clear, mobile liquids to solids, from white to pale yellow in colour |
| Identification |
|
| A.Positive tests for glycerol, for fatty acids and for acetic acid |
A. |
Positive tests for glycerol, for fatty acids and for acetic acid |
|
| A. |
Positive tests for glycerol, for fatty acids and for acetic acid |
| B.Solubility |
B. |
Solubility |
Insoluble in water. Soluble in ethanol |
| B. |
Solubility |
| Purity |
|
| Acids other than acetic and fatty acids |
Not detectable |
| Free glycerol |
Not more than 2 % |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Cadmium |
Not more than 1 mg/kg |
| Heavy metals (as Pb) |
Not more than 10 mg/kg |
| Total acetic acid |
Not less than 9 % and not more than 32 % |
| Free fatty acids (and acetic acid) |
Not more than 3 % estimated as oleic acid |
| Total glycerol |
Not less than 14 % and not more than 31 % |
| Sulphated ash |
Not more than 0,5 % determined at 800 ± 25oC |
| Note:Purity criteria apply to the additive free of sodium, potassium and calcium salts of fatty acids, however these substances may be present up to a maximum level of 6 % (expressed as sodium oleate). |
Note: |
Purity criteria apply to the additive free of sodium, potassium and calcium salts of fatty acids, however these substances may be present up to a maximum level of 6 % (expressed as sodium oleate). |
| Note: |
Purity criteria apply to the additive free of sodium, potassium and calcium salts of fatty acids, however these substances may be present up to a maximum level of 6 % (expressed as sodium oleate). |
| A. |
Positive tests for glycerol, for fatty acids and for acetic acid |
| Note: |
Purity criteria apply to the additive free of sodium, potassium and calcium salts of fatty acids, however these substances may be present up to a maximum level of 6 % (expressed as sodium oleate). |
| Synonyms |
Lactic acid esters of mono- and diglycerides |
| Lactoglycerides |
| Mono- and diglycerides of fatty acids esterified with lactic acid |
| Definition |
Esters of glycerol with lactic acid and fatty acids occurring in food fats and oils. They may contain small amounts of free glycerol, free fatty acids, free lactic acid and free glycerides |
| Description |
Clear, mobile liquids to waxy solids of variable consistency, from white to pale yellow in colour |
| Identification |
|
| A.Positive tests for glycerol, for fatty acids and for lactic acid |
A. |
Positive tests for glycerol, for fatty acids and for lactic acid |
|
| A. |
Positive tests for glycerol, for fatty acids and for lactic acid |
| B.Solubility |
B. |
Solubility |
Insoluble in cold water but dispersible in hot water |
| B. |
Solubility |
| Purity |
|
| Acids other than lactic and fatty acids |
Not detectable |
| Free glycerol |
Not more than 2 % |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Cadmium |
Not more than 1 mg/kg |
| Heavy metals (as Pb) |
Not more than 10 mg/kg |
| Total lactic acid |
Not less than 13 % and not more than 45 % |
| Free fatty acids (and lactic acid) |
Not more than 3 % estimated as oleic acid |
| Total glycerol |
Not less than 13 % and not more than 30 % |
| Sulphated ash |
Not more than 0,5 % determined at 800 ± 25oC |
| Note:Purity criteria apply to the additive free of sodium, potassium and calcium salts of fatty acids, however these substances may be present up to a maximum level of 6 % (expressed as sodium oleate). |
Note: |
Purity criteria apply to the additive free of sodium, potassium and calcium salts of fatty acids, however these substances may be present up to a maximum level of 6 % (expressed as sodium oleate). |
| Note: |
Purity criteria apply to the additive free of sodium, potassium and calcium salts of fatty acids, however these substances may be present up to a maximum level of 6 % (expressed as sodium oleate). |
| A. |
Positive tests for glycerol, for fatty acids and for lactic acid |
| Note: |
Purity criteria apply to the additive free of sodium, potassium and calcium salts of fatty acids, however these substances may be present up to a maximum level of 6 % (expressed as sodium oleate). |
| Synonyms |
Citrem |
| Citric acid esters of mono- and diglycerides |
| Citroglycerides |
| Mono- and diglycerides of fatty acids esterified with citric acid |
| Definition |
Esters of glycerol with citric acid and fatty acids occurring in food oils and fats. They may contain small amounts of free glycerol, free fatty acids, free citric acid and free glycerides. They may be partially or wholly neutralised with sodium hydroxide or with potassium hydroxide |
| Description |
Yellowish or light brown liquids to waxy solids or semi-solids |
| Identification |
|
| A.Positive tests for glycerol, for fatty acids and for citric acid |
A. |
Positive tests for glycerol, for fatty acids and for citric acid |
|
| A. |
Positive tests for glycerol, for fatty acids and for citric acid |
| B.Solubility |
B. |
Solubility |
Insoluble in cold water |
| B. |
Solubility |
| Dispersible in hot water |
| Soluble in oils and fats |
| Insoluble in cold ethanol |
| Purity |
|
| Acids other than citric and fatty acids |
Not detectable |
| Free glycerol |
Not more than 2 % |
| Total glycerol |
Not less than 8 % and not more than 33 % |
| Total citric acid |
Not less than 13 % and not more than 50 % |
| Sulphated ash (determined at 800 ± 25oC) |
Non-neutralised products: not more than 0,5 % |
| Partially or wholly neutralised products: not more than 10 % |
| Lead |
Not more than 2 mg/kg |
| Free fatty acids |
Not more than 3 % estimated as oleic acid |
| Note:Purity criteria apply to the additive free of sodium, potassium and calcium salts of fatty acids, however, these substances may be present up to a maximum level of 6 % (expressed as sodium oleate). |
Note: |
Purity criteria apply to the additive free of sodium, potassium and calcium salts of fatty acids, however, these substances may be present up to a maximum level of 6 % (expressed as sodium oleate). |
| Note: |
Purity criteria apply to the additive free of sodium, potassium and calcium salts of fatty acids, however, these substances may be present up to a maximum level of 6 % (expressed as sodium oleate). |
| A. |
Positive tests for glycerol, for fatty acids and for citric acid |
| Note: |
Purity criteria apply to the additive free of sodium, potassium and calcium salts of fatty acids, however, these substances may be present up to a maximum level of 6 % (expressed as sodium oleate). |
| Synonyms |
Tartaric acid esters of mono- and diglycerides |
| Mono- and diglycerides of fatty acids esterified with tartaric acid |
| Definition |
Esters of glycerol with tartaric acid and fatty acids occurring in food fats and oils. They may contain small amounts of free glycerol, free fatty acids, free tartaric acid and free glycerides |
| Description |
Sticky viscous yellowish liquids to hard yellow waxes |
| Identification |
|
| A.Positive tests for glycerol, for fatty acids and for tartaric acid |
A. |
Positive tests for glycerol, for fatty acids and for tartaric acid |
|
| A. |
Positive tests for glycerol, for fatty acids and for tartaric acid |
| Purity |
|
| Acids other than tartaric and fatty acids |
Not detectable |
| Free glycerol |
Not more than 2 % |
| Total glycerol |
Not less than 12 % and not more than 29 % |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Cadmium |
Not more than 1 mg/kg |
| Heavy metals (as Pb) |
Not more than 10 mg/kg |
| Total tartaric acid |
Not less than 15 % and not more than 50 % |
| Free fatty acids |
Not more than 3 % estimated as oleic acid |
| Sulphated ash |
Not more than 0,5 % determined at 800 ± 25oC |
| Note:Purity criteria apply to the additive free of sodium, potassium and calcium salts of fatty acids, however these substances may be present up to a maximum level of 6 % (expressed as sodium oleate). |
Note: |
Purity criteria apply to the additive free of sodium, potassium and calcium salts of fatty acids, however these substances may be present up to a maximum level of 6 % (expressed as sodium oleate). |
| Note: |
Purity criteria apply to the additive free of sodium, potassium and calcium salts of fatty acids, however these substances may be present up to a maximum level of 6 % (expressed as sodium oleate). |
| A. |
Positive tests for glycerol, for fatty acids and for tartaric acid |
| Note: |
Purity criteria apply to the additive free of sodium, potassium and calcium salts of fatty acids, however these substances may be present up to a maximum level of 6 % (expressed as sodium oleate). |
| Synonyms |
Diacetyltartaric acid esters of mono- and diglycerides |
| Mono-and diglycerides of fatty acids esterified with mono- and diacetyltartaric acid |
| Diacetyltartaric and fatty acid esters of glycerol |
| Definition |
Mixted esters of glycerol with mono- and diacetyltartaric acids (obtained from tartaric acid) and fatty acids occurring in food fats and oils. They may contain small amounts of free glycerol, free fatty acids, free tartaric and acetic acids and their combinations, and free glycerides. Contains also tartaric and acetic esters of fatty acids |
| Description |
Sticky viscous liquids through a fat-like consistency to yellow waxes which hydrolyse in moist air to liberate acetic acid |
| Identification |
|
| A.Positive tests for glycerol, for fatty acids, for tartaric acid and for acetic acid |
A. |
Positive tests for glycerol, for fatty acids, for tartaric acid and for acetic acid |
|
| A. |
Positive tests for glycerol, for fatty acids, for tartaric acid and for acetic acid |
| Purity |
|
| Acids other than acetic, tartaric and fatty acids |
Not detectable |
| Free glycerol |
Not more than 2 % |
| Total glycerol |
Not less than 11 % and not more than 28 % |
| Sulphated ash |
Not more than 0,5 % determined at 800 ± 25oC |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Cadmium |
Not more than 1 mg/kg |
| Heavy metals (as Pb) |
Not more than 10 mg/kg |
| Total tartaric acid |
Not less than 10 % and not more than 40 % |
| Total acetic acid |
Not less than 8 % and not more than 32 % |
| Free fatty acids |
Not more than 3 % estimated as oleic acid |
| Note:Purity criteria apply to the additive free of sodium, potassium and calcium salts of fatty acids, however these substances may be present up to a maximum level of 6 % (expressed as sodium oleate). |
Note: |
Purity criteria apply to the additive free of sodium, potassium and calcium salts of fatty acids, however these substances may be present up to a maximum level of 6 % (expressed as sodium oleate). |
| Note: |
Purity criteria apply to the additive free of sodium, potassium and calcium salts of fatty acids, however these substances may be present up to a maximum level of 6 % (expressed as sodium oleate). |
| A. |
Positive tests for glycerol, for fatty acids, for tartaric acid and for acetic acid |
| Note: |
Purity criteria apply to the additive free of sodium, potassium and calcium salts of fatty acids, however these substances may be present up to a maximum level of 6 % (expressed as sodium oleate). |
| Synonyms |
Mono- and diglycerides of fatty acids esterified with acetic acid and tartaric acid |
| Definition |
Esters of glycerol with acetic and tartaric acids and fatty acids occurring in food fats and oils. They may contain small amounts of free glycerol, free fatty acids, free tartaric and ecetic acids, and free glycerides. May contain mono- and diacetyltartaric esters of mono- and diglycerides of fatty acids |
| Description |
Sticky liquids to solids, from white to pale-yellow in colour |
| Identification |
|
| A.Positive tests for glycerol, for fatty acids, for tartaric acid and for acetic acid |
A. |
Positive tests for glycerol, for fatty acids, for tartaric acid and for acetic acid |
|
| A. |
Positive tests for glycerol, for fatty acids, for tartaric acid and for acetic acid |
| Purity |
|
| Acids other than acetic, tartaric and fatty acids |
Not detectable |
| Free glycerol |
Not more than 2 % |
| Total glycerol |
Not less than 12 % and not more than 27 % |
| Sulphated ash |
Not more than 0,5 % determined at 800 ± 25oC |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Cadmium |
Not more than 1 mg/kg |
| Heavy metals (as Pb) |
Not more than 10 mg/kg |
| Total acetic acid |
Not less than 10 % and not more than 20 % |
| Total tartaric acid |
Not less than 20 % and not more than 40 % |
| Free fatty acids |
Not more than 3 % estimated as oleic acid |
| Note:Purity criteria apply to the additive free of sodium, potassium and calcium salts of fatty acids, however these substances may be present up to a maximum level of 6 % (expressed as sodium oleate). |
Note: |
Purity criteria apply to the additive free of sodium, potassium and calcium salts of fatty acids, however these substances may be present up to a maximum level of 6 % (expressed as sodium oleate). |
| Note: |
Purity criteria apply to the additive free of sodium, potassium and calcium salts of fatty acids, however these substances may be present up to a maximum level of 6 % (expressed as sodium oleate). |
| A. |
Positive tests for glycerol, for fatty acids, for tartaric acid and for acetic acid |
| Note: |
Purity criteria apply to the additive free of sodium, potassium and calcium salts of fatty acids, however these substances may be present up to a maximum level of 6 % (expressed as sodium oleate). |
| Synonyms |
Sucroesters |
| Sugar esters |
| Definition |
Essentially the mono-, di- and triesters of sucrose with fatty acids occurring in food fats and oils. They may be prepared from sucrose and the methyl and ethyl esters of food fatty acids or by extraction from sucroglycerides. No organic solvent other than dimethylsulphoxide, dimethylformamide, ethyl acetate, propane-2-ol, 2-methyl-1-propanol, propylene glycol and methyl ethyl ketone may be used for their preparation |
| Assay |
Content not less than 80 % |
| Description |
Stiff gels, soft solids or white to slightly greyish-white powders |
| Identification |
|
| A.Positive tests for sugar for fatty acids |
A. |
Positive tests for sugar for fatty acids |
|
| A. |
Positive tests for sugar for fatty acids |
| B.Solubility |
B. |
Solubility |
Sparingly soluble in water |
| B. |
Solubility |
| Soluble in ethanol |
| Purity |
|
| Sulphated ash |
Not more than 2 % determined at 800 ± 25oC |
| Free sugar |
Not more than 5 % |
| Free fatty acids |
Not more than 3 % estimated as oleic acid |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Cadmium |
Not more than 1 mg/kg |
| Heavy metals (as Pb) |
Not more than 10 mg/kg |
| Methanol |
Not more than 10 mg/kg |
| Dimethylsulphoxide |
Not more than 2 mg/kg |
| Dimethylformamide |
Not more than 1 mg/kg |
| 2-methyl-1-propanol |
Not more than 10 mg/kg |
| Ethylacetate |
|
Not more than 350 mg/kg, singly or in combination |
| Propane-2-ol |
| Prolyleneglycol |
| Methyl ethyl ketone |
Not more than 10 mg/kg |
| Note:Purity criteria apply to the additive free of sodium, potassium and calcium salts of fatty acids, however these substances may be present up to a maximum level of 6 % (expressed as sodium oleate). |
Note: |
Purity criteria apply to the additive free of sodium, potassium and calcium salts of fatty acids, however these substances may be present up to a maximum level of 6 % (expressed as sodium oleate). |
| Note: |
Purity criteria apply to the additive free of sodium, potassium and calcium salts of fatty acids, however these substances may be present up to a maximum level of 6 % (expressed as sodium oleate). |
| A. |
Positive tests for sugar for fatty acids |
| Note: |
Purity criteria apply to the additive free of sodium, potassium and calcium salts of fatty acids, however these substances may be present up to a maximum level of 6 % (expressed as sodium oleate). |
| Synonyms |
Sugar glycerides |
| Definition |
Sucroglycerides are produced by reacting sucrose with an edible fat or oil to produce a mixture of essentially mono-, di- and triesters of sucrose and fatty acids together with residual mono-, di- and triglycerides from fat or oil. No organic solvents shall be used in their preparation other than cyclohexane, dimethylformamide, ethyl acetate, 2-methyl-1-propanol and propane-2-ol |
| Assay |
Content not less than 40 % and not more than 60 % of sucrose fatty acid esters |
| Description |
Soft solid masses, stiff gels or white to off-white powders |
| Identification |
|
| A.Positive tests for sugar and for fatty acids |
A. |
Positive tests for sugar and for fatty acids |
|
| A. |
Positive tests for sugar and for fatty acids |
| B.Solubility |
B. |
Solubility |
Insoluble in cold water |
| B. |
Solubility |
| Soluble in ethanol |
| Purity |
|
| Sulphated ash |
Not more than 2 % determined at 800 ± 25oC |
| Free sugar |
Not more than 5 % |
| Free fatty acids |
Not more than 3 % estimated as oleic acid |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Cadmium |
Not more than 1 mg/kg |
| Heavy metals (as Pb) |
Not more than 10 mg/kg |
| Methanol |
Not more than 10 mg/kg |
| Dimethylformamide |
Not more than 1 mg/kg |
| 2-methyl-1-propanol |
|
Not more than 10 mg/kg, single or in combination |
| Cyclohexane |
| Ethylacetate |
|
Not more than 350 mg/kg, single or in combination |
| Propane-2-ol |
| Note:Purity criteria apply to the additive free of sodium, potassium and calcium salts of fatty acids, however these substances may be present up to a maximum level of 6 % (expressed as sodium oleate). |
Note: |
Purity criteria apply to the additive free of sodium, potassium and calcium salts of fatty acids, however these substances may be present up to a maximum level of 6 % (expressed as sodium oleate). |
| Note: |
Purity criteria apply to the additive free of sodium, potassium and calcium salts of fatty acids, however these substances may be present up to a maximum level of 6 % (expressed as sodium oleate). |
| A. |
Positive tests for sugar and for fatty acids |
| Note: |
Purity criteria apply to the additive free of sodium, potassium and calcium salts of fatty acids, however these substances may be present up to a maximum level of 6 % (expressed as sodium oleate). |
| Synonyms |
Polyglycerol fatty acid esters |
| Polyglycerin esters of fatty acid esters |
| Definition |
Polyglycerol esters of fatty acids are produced by the esterification of polyglycerol with food fats and oils or with fatty acids occurring in foods fats and oils. The polyglycerol moiety is predominantly di-, tri- and tetraglycerol and contains not more than 10 % of polyglycerols equal to or higher than heptaglycerol |
| Assay |
Content of total fatty acid ester not less than 90 % |
| Description |
Light yellow to amber, oily to very viscous liquids; light tan to medium brown, plastic or soft solids; and light tan to brown, hard, waxy solids |
| Identification |
|
| A.Positive tests for glycerol, for polyglycerols and for fatty acids |
A. |
Positive tests for glycerol, for polyglycerols and for fatty acids |
|
| A. |
Positive tests for glycerol, for polyglycerols and for fatty acids |
| B.Solubility |
B. |
Solubility |
The esters range from very hydrophilic to very lipophilic, but as a class tend to be dispersible in water and soluble in organic solvents and oils |
| B. |
Solubility |
| Purity |
|
| Sulphated ash |
Not more than 0,5 % determined at 800 ± 25oC |
| Acids other than fatty acids |
Not detectable |
| Free fatty acids |
Not more than 6 % estimated as oleic acid |
| Total glycerol and polyglycerol |
Not less than 18 % and not more than 60 % |
| Free glycerol and polyglycerol |
Not more than 7 % |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Cadmium |
Not more than 1 mg/kg |
| Heavy metals (as Pb) |
Not more than 10 mg/kg |
| Note:Purity criteria apply to the additive free of sodium, potassium and calcium salts of fatty acids, however these substances may be present up to a maximum level of 6 % (expressed as sodium oleate). |
Note: |
Purity criteria apply to the additive free of sodium, potassium and calcium salts of fatty acids, however these substances may be present up to a maximum level of 6 % (expressed as sodium oleate). |
| Note: |
Purity criteria apply to the additive free of sodium, potassium and calcium salts of fatty acids, however these substances may be present up to a maximum level of 6 % (expressed as sodium oleate). |
| A. |
Positive tests for glycerol, for polyglycerols and for fatty acids |
| Note: |
Purity criteria apply to the additive free of sodium, potassium and calcium salts of fatty acids, however these substances may be present up to a maximum level of 6 % (expressed as sodium oleate). |
| Synonyms |
Glycerol esters of condensed castor oil fatty acids |
| Polyglycerol esters of polycondensed fatty acids from castor oil |
| Polyglycerol esters of interesterified ricinoleic acid |
| PGPR |
| Definition |
Polyglycerol polyricinoleate is prepared by the esterification of polyglycerol with condensed castor oil fatty acids |
| Description |
Clear, highly viscous liquid |
| Identification |
|
| A.Solubility |
A. |
Solubility |
Insoluble in water and in ethanol. |
| A. |
Solubility |
| Soluble in ether, hydrocarbons and halogenated hydrocarbons |
| B.Positive tests for glycerol, polyglycerol and for ricinoleic acid |
B. |
Positive tests for glycerol, polyglycerol and for ricinoleic acid |
|
| B. |
Positive tests for glycerol, polyglycerol and for ricinoleic acid |
| C.Refractive index [n]65 |
C. |
Refractive index [n]65 |
Between 1,4630 and 1,4665 |
| C. |
Refractive index [n]65 |
| Purity |
|
| Polyglycerols |
The polyglycerol moiety shall be composed of not less than 75 % of di-, tri- and tetraglycerols and shall contain not more than 10 % of polyglycerols equal to or higher than heptaglycerol |
| Hydroxyl value |
Not less than 80 and not more than 100 |
| Acid value |
Not more than 6 |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Cadmium |
Not more than 1 mg/kg |
| Heavy metals (as Pb) |
Not more than 10 mg/kg |
| B. |
Positive tests for glycerol, polyglycerol and for ricinoleic acid |
| C. |
Refractive index [n]65 |
| Synonyms |
Propylene glycol esters of fatty acids |
| Definition |
Consists of mixtures of propane-1,2-diol mono- and diesters of fatty acids occurring in food fats and oils. The alcohol moiety is exclusively propane-1,2-diol together with dimer and traces of trimer. Organic acids other than food fatty acids are absent |
| Assay |
Content of total fatty acid ester not less than 85 % |
| Description |
Clear liquids or waxy white flakes, beads or solids having a bland odour |
| Identification |
|
| A.Positive tests for propylene glycol and for fatty acids |
A. |
Positive tests for propylene glycol and for fatty acids |
|
| A. |
Positive tests for propylene glycol and for fatty acids |
| Purity |
|
| Sulphated ash |
Not more than 0,5 % determined at 800 ± 25oC |
| Acids other than fatty acids |
Not detectable |
| Free fatty acids |
Not more than 6 % estimated as oleic acid |
| Total propane-1,2-diol |
Not less than 11 % and not more than 31 % |
| Free propane-1,2-diol |
Not more than 5 % |
| Dimer and trimer of propylene glycol |
Not more than 0,5 % |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Cadmium |
Not more than 1 mg/kg |
| Heavy metals (as Pb) |
Not more than 10 mg/kg |
| Note:Purity criteria apply to the additive free of sodium, potassium and calcium salts of fatty acids, however these substances may be present up to a maximum level of 6 % (expressed as sodium oleate). |
Note: |
Purity criteria apply to the additive free of sodium, potassium and calcium salts of fatty acids, however these substances may be present up to a maximum level of 6 % (expressed as sodium oleate). |
| Note: |
Purity criteria apply to the additive free of sodium, potassium and calcium salts of fatty acids, however these substances may be present up to a maximum level of 6 % (expressed as sodium oleate). |
| A. |
Positive tests for propylene glycol and for fatty acids |
| Note: |
Purity criteria apply to the additive free of sodium, potassium and calcium salts of fatty acids, however these substances may be present up to a maximum level of 6 % (expressed as sodium oleate). |
| Synonyms |
TOSOM |
| Definition |
Thermally oxidised soya bean oil interacted with mono- and diglycerides of fatty acids is a complex mixture of esters of glycerol and fatty acids found in edible fat and fatty acids from thermally oxidised soya bean oil. It is produced by interaction and desodorisation under vacuum at 130oC of 10 % of thermally oxidised soya bean oil and 90 % mono- and diglycerides of food fatty acids. Soya bean oil is exclusively made from natural strains of soya beans |
| Description |
Pale yellow to light brown a waxy or solid consistency |
| Identification |
|
| A.Solubility |
A. |
Solubility |
Insoluble in water. Soluble in hot oil or fat |
| A. |
Solubility |
| Purity |
|
| Melting range |
55-65oC |
| Free fatty acids |
Not more than 1,5 % estimated as oleic acid |
| Free glycerol |
Not more than 2 % |
| Total fatty acids |
83-90 % |
| Total glycerol |
16-22 % |
| Fatty acid methyl esters, not forming adduct with urea |
Not more than 9 % of total fatty acid methyl esters |
| Fatty acids, insoluble in petroleum ether |
Not more than 2 % of total fatty acids |
| Peroxide value |
Not more than 3 |
| Epoxides |
Not more than 0,03 % oxirane oxygen |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Cadmium |
Not more than 1 mg/kg |
| Heavy metals (as Pb) |
Not more than 10 mg/kg |
| Synonyms |
Sodium stearoyl lactylate |
| Sodium stearoyl lactate |
| Definition |
A mixture of the sodium salts of stearoyl lactylic acids and its polymers and minor amounts of sodium salts of other related acids, manufactured by the reaction of stearic acid and lactic acid. Other food fatty acids may also be present, free or esterified, due to their presence in the stearic acid used |
| Chemical names |
Sodium di-2-stearoyl lactate |
| Sodium di(2-stearoyloxy)propionate |
| Einecs |
246-929-7 |
| Chemical formula (major components) |
C21H39O4Na |
| C19H35O4Na |
| Description |
White or slightly yellowish powder or brittle solid with a characteristic odour |
| Identification |
|
| A.Positive tests for sodium, for fatty acids and for lactic acid |
A. |
Positive tests for sodium, for fatty acids and for lactic acid |
|
| A. |
Positive tests for sodium, for fatty acids and for lactic acid |
| B.Solubility |
B. |
Solubility |
Insoluble in water. Soluble in ethanol |
| B. |
Solubility |
| Purity |
|
| Sodium |
Not less than 2,5 % and not more than 5 % |
| Ester value |
Not less than 90 and not more than 190 |
| Acid value |
Not less than 60 and not more than 130 |
| Total lactic acid |
Not less than 15 % and not more than 40 % |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Cadmium |
Not more than 1 mg/kg |
| Heavy metals (as Pb) |
Not more than 10 mg/kg |
| A. |
Positive tests for sodium, for fatty acids and for lactic acid |
| Synonyms |
Calcium stearoyl lactate |
| Definition |
A mixture of the calcium salts of stearoyl lactylic acids and its polymers and minor amounts of calcium salts of other related acids, manufactured by the reaction of stearic acid and lactic acid. Other food fatty acids may also be present, free or esterified, due to their presence in the stearic acid used |
| Chemical name |
Calcium di-2-stearoyl lactate |
| Calcium di(2-stearoyloxy)propionate |
| Einecs |
227-335-7 |
| Chemical formula |
C42H78O8Ca |
| C38H70O8Ca |
| Description |
White or slightly yellowish powder or brittle solid with a characteristic odour |
| Identification |
|
| A.Positive tests for calcium, for fatty acids and for lactid acid |
A. |
Positive tests for calcium, for fatty acids and for lactid acid |
|
| A. |
Positive tests for calcium, for fatty acids and for lactid acid |
| B.Solubility |
B. |
Solubility |
Slightly soluble in hot water |
| B. |
Solubility |
| Purity |
|
| Calcium |
Not less than 1 % and not more than 5,2 % |
| Ester value |
Not less than 125 and not more than 190 |
| Total lactic acid |
Not less than 15 % and not more than 40 % |
| Acid value |
Not less than 50 and not more than 130 |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Cadmium |
Not more than 1 mg/kg |
| Heavy metals (as Pb) |
Not more than 10 mg/kg |
| A. |
Positive tests for calcium, for fatty acids and for lactid acid |
| Synonyms |
Stearyl palmityl tartrate |
| Definition |
Product of the esterification of tartaric acid with commercial stearyl alcohol, which consists essentially of stearyl and palmityl alcohols. It consists mainly of diester, with minor amounts of monoester and of unchanged starting materials |
| Chemical name |
Distearyl tartrate |
| Dipalmityl tartrate |
| Chemical formula |
C38H74O6to C40H78O6 |
| Molecular weight |
627 to 655 |
| Assay |
Content of total ester not less than 90 % corresponding to an ester value of not less than 163 and not more than 180 |
| Description |
Cream-coloured unctuous solid (at 25oC) |
| Identification |
|
| A.Positive tests for tartare |
A. |
Positive tests for tartare |
|
| A. |
Positive tests for tartare |
| B.Melting range |
B. |
Melting range |
Between 67oC and 77oC. After saponification the saturated long chain fatty alcohols have a melting range of 49oC to 55oC |
| B. |
Melting range |
| Purity |
|
| Hydroxyl value |
Not less than 200 and not more than 220 |
| Acid value |
Not more than 5,6 |
| Total tartaric acid content |
Not less than 18 % and not more than 35 % |
| Sulphated ash |
Not more than 0,5 % determined at 800 ± 25oC |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Cadmium |
Not more than 1 mg/kg |
| Heavy metals (as Pb) |
Not more than 10 mg/kg |
| Unsaponifiable matter |
Not less than 77 % and not more than 83 % |
| Iodine value |
Not more than 4 (Wijs method) |
| A. |
Positive tests for tartare |
| Definition |
A mixture of the partial esters of sorbitol and its anhydrides with edible, commercial stearic acid |
| Einecs |
215-664-9 |
| Assay |
Content not less than 95 % of a mixture of sorbitol, sorbitan, and isosorbide esters |
| Description |
Light, cream- to tan-coloured beads or flakes or a hard, waxy solid with a slight characteristic odour |
| Identification |
|
| A.Solubility |
A. |
Solubility |
Soluble at temperatures above its melting point in toluene, dioxane, carbon tetrachloride, ether, methanol, ethanol and aniline; insoluble in petroleum ether and acetone; insoluble in cold water but dispersible in warm water; soluble with haze at temperatures above 50oC in mineral oil and ethyl acetate |
| A. |
Solubility |
| B.Congealing range |
B. |
Congealing range |
50-52oC |
| B. |
Congealing range |
| C.Infrared absorption spectrum |
C. |
Infrared absorption spectrum |
Characteristic of a partial fatty acid ester of a polyol |
| C. |
Infrared absorption spectrum |
| Purity |
|
| Water |
Not more than 2 % (Karl Fischer method) |
| Sulphated ash |
Not more than 0,5 % |
| Acid value |
Not more than 10 |
| Saponification value |
Not less than 147 and not more than 157 |
| Hydroxyl value |
Not less than 235 and not more than 260 |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Cadmium |
Not more than 1 mg/kg |
| Heavy metals (as Pb) |
Not more than 10 mg/kg |
| C. |
Infrared absorption spectrum |
| Definition |
A mixture of the partial esters of sorbitol and its anhydrides with edible, commercial stearic acid |
| Einecs |
247-891-4 |
| Assay |
Content not less than 95 % of a mixture of sorbitol, sorbitan, and isosorbide esters |
| Description |
Light, cream- to tan-coloured beads or flakes or hard, waxy solid with a slight odour |
| Identification |
|
| A.Solubility |
A. |
Solubility |
Slightly soluble in toluene, ether, carbon tetrachloride and ethyl acetate; dispersible in petroleum ether, mineral oil, vegetable oils, acetone and dioxane; insoluble in water, methanol and ethanol |
| A. |
Solubility |
| B.Congealing range |
B. |
Congealing range |
47-50oC |
| B. |
Congealing range |
| C.Infrared absorption spectrum |
C. |
Infrared absorption spectrum |
Characteristic of a partial fatty acid ester of a polyol |
| C. |
Infrared absorption spectrum |
| Purity |
|
| Water |
Not more than 2 % (Karl Fischer method) |
| Sulphated ash |
Not more than 0,5 % |
| Acid value |
Not more than 15 |
| Saponification value |
Not less than 176 and not more than 188 |
| Hydroxyl value |
Not less than 66 and not more than 80 |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Cadmium |
Not more than 1 mg/kg |
| Heavy metals (as Pb) |
Not more than 10 mg/kg |
| C. |
Infrared absorption spectrum |
| Definition |
A mixture of the partial esters of sorbitol and its anhydrides with edible, commercial lauric acid |
| Einecs |
215-663-3 |
| Assay |
Content not less than 95 % of a mixture of sorbitol, sorbitan, and isosorbide esters |
| Description |
Amber-coloured oily viscous liquid, light cream to tan-coloured beads or flakes or a hard, waxy solid with a slight odour |
| Identification |
|
| A.Solubility |
A. |
Solubility |
Dispersible in hot and cold water |
| A. |
Solubility |
| B.Infrared absorption spectrum |
B. |
Infrared absorption spectrum |
Characteristic of a partial fatty acid ester of a polyol |
| B. |
Infrared absorption spectrum |
| Purity |
|
| Water |
Not more than 2 % (Karl Fischer method) |
| Sulphated ash |
Not more than 0,5 % |
| Acid value |
Not more than 7 |
| Saponification value |
Not less than 155 and not more than 170 |
| Hydroxyl value |
Not less than 330 and not more than 358 |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Cadmium |
Not more than 1 mg/kg |
| Heavy metals (as Pb) |
Not more than 10 mg/kg |
| B. |
Infrared absorption spectrum |
| Definition |
A mixture of the partial esters of sorbitol and its anhydrides with edible, commercial oleic acid. Major constituent is 1,4-sorbitan monooleate. Other constituents include isosorbide monooleate, sorbitan dioleate and sorbitan trioleate |
| Einecs |
215-665-4 |
| Assay |
Content not less than 95 % of a mixture of sorbitol, sorbitan and isosorbide esters |
| Description |
Amber-coloured viscous liquid, light cream to tan-coloured beads or flakes or a hard, waxy solid with a slight characteristic odour |
| Identification |
|
| A.Solubility |
A. |
Solubility |
Soluble at temperatures above its melting point in ethanol, ether, ethyl acetate, aniline, toluene, dioxane, petroleum ether and carbon tetrachloride. Insoluble in cold water, dispersible in warm water |
| A. |
Solubility |
| B.Iodine value |
B. |
Iodine value |
The residue of oleic acid, obtained from the saponification of the sorbitan monoleate in assay, has a iodine value between 80 and 100 |
| B. |
Iodine value |
| Purity |
|
| Water |
Not more than 2 % (Karl Fischer method) |
| Sulphated ash |
Not more than 0,5 % |
| Acid value |
Not more than 8 |
| Saponification value |
Not less than 145 and not more than 160 |
| Hydroxyl value |
Not less than 193 and not more than 210 |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Cadmium |
Not more than 1 mg/kg |
| Heavy metals (as Pb) |
Not more than 10 mg/kg |
| Synonyms |
Sorbitan palmitate |
| Definition |
A mixture of the partial esters of sorbitol and its anhydrides with edible, commercial palmitic acid |
| Einecs |
247-568-8 |
| Assay |
Content not less than 95 % of a mixture of sorbitol, sorbitan, and isosorbide esters |
| Description |
Light cream to tan-coloured beads or flakes or a hard, waxy solid with a slight characteristic odour |
| Identification |
|
| A.Solubility |
A. |
Solubility |
Soluble at temperatures above its melting point in ethanol, methanol, ether, ethyl acetate, aniline, toluene, dioxane, petroleum ether and carbon tetrachloride. Insoluble in cold water but dispersible in warm water |
| A. |
Solubility |
| B.Congealing range |
B. |
Congealing range |
45-47oC |
| B. |
Congealing range |
| C.Infrared absorption spectrum |
C. |
Infrared absorption spectrum |
Characteristic of a partial fatty acid ester of polyol |
| C. |
Infrared absorption spectrum |
| Purity |
|
| Water |
Not more than 2 % (Karl Fischer method) |
| Sulphate ash |
Not more than 0,5 % |
| Acid value |
Not more than 7,5 |
| Saponification value |
Not less than 140 and not more than 150 |
| Hydroxyl value |
Not less than 270 and not more than 305 |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Cadmium |
Not more than 1 mg/kg |
| Heavy metals (as Pb) |
Not more than 10 mg/kg |
| C. |
Infrared absorption spectrum |
| Synonyms |
Soda ash |
| Definition |
|
| Chemical name |
Sodium carbonate |
| Einecs |
207-838-8 |
| Chemical formula |
Na2CO3· nH2O (n = 0, 1 or 10) |
| Molecular weight |
106,00 (anhydrous) |
| Assay |
Content not less than 99 % of Na2CO3on the anhydrous basis |
| Description |
Colourless crystals or white, granular or crystalline powder |
| The anhydrous form is hygroscopic, the decahydrate efflorescent |
| Identification |
|
| A.Positive tests for sodium and for carbonate |
A. |
Positive tests for sodium and for carbonate |
|
| A. |
Positive tests for sodium and for carbonate |
| B.Solubility |
B. |
Solubility |
Freely soluble in water. Insoluble in ethanol |
| B. |
Solubility |
| Purity |
|
| Loss on drying |
Not more than 2 % (anhydrous), 15 % (monohydrate) or 55 %-65 % (decahydrate) (70oC raising gradually to 300oC, to constant weight) |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| A. |
Positive tests for sodium and for carbonate |
| Synonyms |
Sodium bicarbonate, sodium acid carbonate, bicarbonate of soda, baking soda |
| Definition |
|
| Chemical name |
Sodium hydrogen carbonate |
| Einecs |
205-633-8 |
| Chemical formula |
NaHCO3 |
| Molecular weight |
84,01 |
| Assay |
Content not less than 99 % on the anhydrous basis |
| Description |
Colourless or white crystalline masses or crystalline powder |
| Identification |
|
| A.Positive tests for sodium and for carbonate |
A. |
Positive tests for sodium and for carbonate |
|
| A. |
Positive tests for sodium and for carbonate |
| B.pH of a 1 % solution |
B. |
pH of a 1 % solution |
Between 8,0 and 8,6 |
| B. |
pH of a 1 % solution |
| C.Solubility |
C. |
Solubility |
Soluble in water. Insoluble in ethanol |
| C. |
Solubility |
| Purity |
|
| Loss on drying |
Not more than 0,25 % (over silica gel, 4h) |
| Ammonium salts |
No odour of ammonia detectable after heating |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| A. |
Positive tests for sodium and for carbonate |
| Definition |
|
| Chemical name |
Sodium monohydrogen dicarbonate |
| Einecs |
208-580-9 |
| Chemical formula |
Na2(CO)3· NaHCO3· 2H2O |
| Molecular weight |
226,03 |
| Assay |
Content between 35,0 % and 38,6 % of NaHCO3and between 46,4 % and 50,0 % of Na2CO3 |
| Description |
White flakes, crystals or crystalline powder |
| Identification |
|
| A.Positive tests for sodium and for carbonate |
A. |
Positive tests for sodium and for carbonate |
|
| A. |
Positive tests for sodium and for carbonate |
| B.Solubility |
B. |
Solubility |
Freely soluble in water |
| B. |
Solubility |
| Purity |
|
| Sodium chloride |
Not more than 0,5 % |
| Iron |
Not more than 20 mg/kg |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| A. |
Positive tests for sodium and for carbonate |
| Definition |
|
| Chemical name |
Potassium carbonate |
| Einecs |
209-529-3 |
| Chemical formula |
K2CO3· nH2O (n = 0 or 1,5 ) |
| Molecular weight |
138,21 (anhydrous) |
| Assay |
Content not less than 99,0 % on the anhydrous basis |
| Description |
White, very deliquescent powder. |
| The hydrate occurs as small, white, translucent crystals or granules |
| Identification |
|
| A.Positive tests for potassium and for carbonate |
A. |
Positive tests for potassium and for carbonate |
|
| A. |
Positive tests for potassium and for carbonate |
| B.Solubility |
B. |
Solubility |
Very soluble in water. Insoluble in ethanol |
| B. |
Solubility |
| Purity |
|
| Loss on drying |
Not more than 5 % (anhydrous) or 18 % (hydrate) (180oC, 4h) |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| A. |
Positive tests for potassium and for carbonate |
| Synonyms |
Potassium bicarbonate, acid potassium carbonate |
| Definition |
|
| Chemical name |
Potassium hydrogen carbonate |
| Einecs |
206-059-0 |
| Chemical formula |
KHCO3 |
| Molecular weight |
100,11 |
| Assay |
Content not less than 99,0 % and not more than 101,0 % KHCO3on the anhydrous basis |
| Description |
Colourless crystals or white powder or granules |
| Identification |
|
| A.Positive tests for potassium and for carbonate |
A. |
Positive tests for potassium and for carbonate |
|
| A. |
Positive tests for potassium and for carbonate |
| B.Solubility |
B. |
Solubility |
Freely soluble in water. Insoluble in ethanol |
| B. |
Solubility |
| Purity |
|
| Loss on drying |
Not more than 0,25 % (over silica gel, 4h) |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| A. |
Positive tests for potassium and for carbonate |
| Definition |
Ammonium carbonate consists of ammonium carbamate, ammonium carbonate and ammonium hydrogen carbonate in varying proportions |
| Chemical name |
Ammonium carbonate |
| Einecs |
233-786-0 |
| Chemical formula |
CH6N2O2, CH8N2O3and CH5NO3 |
| Molecular weight |
Ammonium carbamate 78,06 ; ammonium carbonate 98,73 ; ammonium hydrogen carbonate 79,06 |
| Assay |
Content not less than 30,0 % and not more than 34,0 % of NH3 |
| Description |
White powder or hard, white or translucent masses or crystals. Becomes opaque on exposure to air and is finally converted into white porous lumps or powder (of ammonium bicarbonate) due to loss of ammonia and carbon dioxide |
| Identification |
|
| A.Positive tests for ammonium and for carbonate |
A. |
Positive tests for ammonium and for carbonate |
|
| A. |
Positive tests for ammonium and for carbonate |
| B.pH of a 5 % solution |
B. |
pH of a 5 % solution |
about 8,6 |
| B. |
pH of a 5 % solution |
| C.Solubility |
C. |
Solubility |
Soluble in water |
| C. |
Solubility |
| Purity |
|
| Non-volatile matter |
Not more than 500 mg/kg |
| Chlorides |
Not more than 30 mg/kg |
| Sulphate |
Not more than 30 mg/kg |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| A. |
Positive tests for ammonium and for carbonate |
| Synonyms |
Ammonium bicarbonate |
| Definition |
|
| Chemical name |
Ammonium hydrogen carbonate |
| Einecs |
213-911-5 |
| Chemical formula |
CH5NO3 |
| Molecular weight |
79,06 |
| Assay |
Content not less than 99,0 % |
| Description |
White crystals or crystalline powder |
| Identification |
|
| A.Positive tests for ammonium and for carbonate |
A. |
Positive tests for ammonium and for carbonate |
|
| A. |
Positive tests for ammonium and for carbonate |
| B.pH of a 5 % solution |
B. |
pH of a 5 % solution |
about 8,0 |
| B. |
pH of a 5 % solution |
| C.Solubility |
C. |
Solubility |
Freely soluble in water. Insoluble in ethanol |
| C. |
Solubility |
| Purity |
|
| Non-volatile matter |
Not more than 500 mg/kg |
| Chlorides |
Not more than 30 mg/kg |
| Sulphate |
Not more than 30 mg/kg |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| A. |
Positive tests for ammonium and for carbonate |
| Synonyms |
Magnesium hydrogen carbonate, magnesium subcarbonate (light or heavy), hydrated basic magnesium carbonate, magnesium carbonate hydroxide |
| Definition |
|
| Chemical name |
Magnesium carbonate hydroxide hydrated |
| Einecs |
235-192-7 |
| Chemical formula |
4MgCO3Mg(OH)25H2O |
| Molecular weight |
485 |
| Assay |
Mg content not less than 40,0 % and not more than 45,0 % calculated as MgO |
| Description |
Light, white friable mass or bulky white powder |
| Identification |
|
| A.Positive tests for magnesium and for carbonate |
A. |
Positive tests for magnesium and for carbonate |
|
| A. |
Positive tests for magnesium and for carbonate |
| B.Solubility |
B. |
Solubility |
Practically insoluble in water. Insoluble in ethanol |
| B. |
Solubility |
| Purity |
|
| Acid insoluble matter |
Not more than 0,05 % |
| Water soluble matter |
Not more than 1,0 % |
| Calcium |
Not more than 1,0 % |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 10 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| A. |
Positive tests for magnesium and for carbonate |
| Synonyms |
Hydrogen chloride, muriatic acid |
| Definition |
|
| Chemical name |
Hydrochloric acid |
| Einecs |
231-595-7 |
| Chemical formula |
HCl |
| Molecular weight |
36,46 |
| Assay |
Hydrochloric acid is commercially available in varying concentrations. Concentrated hydrochloric acid contains not less than 35,0 % HCl |
| Description |
Clear, colourless or slightly yellowish, corrosive liquid having a pungent odour |
| Identification |
|
| A.Positive tests for acid and for chloride |
A. |
Positive tests for acid and for chloride |
|
| A. |
Positive tests for acid and for chloride |
| B.Solubility |
B. |
Solubility |
Soluble in water and in ethanol |
| B. |
Solubility |
| Purity |
|
| Total organic compounds |
Total organic compounds (non-fluorine containing): not more than 5 mg/kg |
| Benzene: not more than 0,05 mg/kg |
| Fluorinated compounds (total): not more than 25 mg/kg |
| Non-volatile matter |
Not more than 0,5 % |
| Reducing substances |
Not more than 70 mg/kg (as SO2) |
| Oxidising substances |
Not more than 30 mg/kg (as Cl2) |
| Sulphate |
Not more than 0,5 % |
| Iron |
Not more than 5 mg/kg |
| Arsenic |
Not more than 1 mg/kg |
| Lead |
Not more than 1 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| A. |
Positive tests for acid and for chloride |
| Synonyms |
Sylvine |
| Sylvite |
| Definition |
|
| Chemical name |
Potassium chloride |
| Einecs |
231-211-8 |
| Chemical formulae |
KCl |
| Molecular weight |
74,56 |
| Assay |
Content not less than 99 % on the dried basis |
| Description |
Colourless, elongated, prismatic or cubital crystals or white granular powder. Odourless |
| Identification |
|
| A.Solubility |
A. |
Solubility |
Freely soluble in water. Insoluble in ethanol |
| A. |
Solubility |
| B.Positive tests for potassium and for chloride |
B. |
Positive tests for potassium and for chloride |
|
| B. |
Positive tests for potassium and for chloride |
| Purity |
|
| Loss on drying |
Not more than 1 % (105oC, 2 hours) |
| Sodium |
Negative test |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Cadmium |
Not more than 1 mg/kg |
| Heavy metals (as Pb) |
Not more than 10 mg/kg |
| B. |
Positive tests for potassium and for chloride |
| Definition |
|
| Chemical name |
Calcium chloride |
| Einecs |
233-140-8 |
| Chemical formula |
CaCl2· nH2O (n = 0,2 or 6) |
| Molecular weight |
110,99 (anhydrous), 147,02 (dihydrate), 219,08 (hexahydrate) |
| Assay |
Content not less than 93,0 % on the anhydrous basis |
| Description |
White, odourless, hygroscopic powder or deliquescent crystals |
| Identification |
|
| A.Positive tests for calcium and for chloride |
A. |
Positive tests for calcium and for chloride |
|
| A. |
Positive tests for calcium and for chloride |
| B.Solubility |
B. |
Solubility |
Anhydrous calcium chloride: freely soluble in water and ethanol |
| B. |
Solubility |
| Dihydrate: freely soluble in water, soluble in ethanol |
| Hexahydrate: very soluble in water and ethanol |
| Purity |
|
| Magnesium and alkali salts |
Not more than 5 % on the anhydrous basis |
| Fluoride |
Not more than 40 mg/kg |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 10 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| A. |
Positive tests for calcium and for chloride |
| Definition |
|
| Chemical name |
Magnesium chloride |
| Einecs |
232-094-6 |
| Chemical formula |
MgCl2· 6H2O |
| Molecular weight |
203,30 |
| Assay |
Content not less than 99,0 % |
| Description |
Colourless, odourless, very deliquescent flakes or crystals |
| Identification |
|
| A.Positive tests for magnesium and for chloride |
A. |
Positive tests for magnesium and for chloride |
|
| A. |
Positive tests for magnesium and for chloride |
| B.Solubility |
B. |
Solubility |
Very soluble in water, freely soluble in ethanol |
| B. |
Solubility |
| Purity |
|
| Ammonium |
Not more than 50 mg/kg |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 10 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| A. |
Positive tests for magnesium and for chloride |
| Synonyms |
Tin chloride, tin dichloride |
| Definition |
|
| Chemical name |
Stannous chloride dihydrate |
| Einecs |
231-868-0 |
| Chemical formula |
SnCl2· 2H2O |
| Molecular weight |
225,63 |
| Assay |
Content not less than 98,0 % |
| Description |
Colourless or white crystals |
| May have a slight odour of hydrochloric acid |
| Identification |
|
| A.Positive tests for tin (II) and for chloride |
A. |
Positive tests for tin (II) and for chloride |
|
| A. |
Positive tests for tin (II) and for chloride |
| B.Solubility |
B. |
Solubility |
Water: soluble in less than its own weight of water, but it forms an insoluble basic salt with excess water |
| B. |
Solubility |
| Ethanol: soluble |
| Purity |
|
| Sulphate |
Not more than 30 mg/kg |
| Arsenic |
Not more than 2 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Lead |
Not more than 5 mg/kg |
| A. |
Positive tests for tin (II) and for chloride |
| Synonyms |
Oil of vitriol, dihydrogen sulphate |
| Definition |
|
| Chemical name |
Sulphuric acid |
| Einecs |
231-639-5 |
| Chemical formula |
H2SO4 |
| Molecular weight |
98,07 |
| Assay |
Sulphuric acid is commercially available in varying concentrations. The concentrated form contains not less than 96,0 % |
| Description |
Clear, colourless or slightly brown, very corrosive oily liquid |
| Identification |
|
| A.Positive tests for acid and for sulphate |
A. |
Positive tests for acid and for sulphate |
|
| A. |
Positive tests for acid and for sulphate |
| B.Solubility |
B. |
Solubility |
Miscible with water, with generation of much heat, also with ethanol |
| B. |
Solubility |
| Purity |
|
| Ash |
Not more than 0,02 % |
| Reducing matter |
Not more than 40 mg/kg (as SO2) |
| Nitrate |
Not more than 10 mg/kg (on H2SO4basis) |
| Chloride |
Not more than 50 mg/kg |
| Iron |
Not more than 20 mg/kg |
| Selenium |
Not more than 20 mg/kg |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| A. |
Positive tests for acid and for sulphate |
| Definition |
|
| Chemical name |
Sodium sulphate |
| Chemical formula |
Na2SO4· nH2O (n = 0 or 10) |
| Molecular weight |
142,04 (anhydrous) |
| 322,04 (decahydrate) |
| Assay |
Content not less than 99,0 % on the anhydrous basis |
| Description |
Colourless crystals or a fine, white, crystalline powder |
| The decahydrate is efflorescent |
| Identification |
|
| A.Positive tests for sodium and for sulphate |
A. |
Positive tests for sodium and for sulphate |
|
| A. |
Positive tests for sodium and for sulphate |
| B.Acidity of a 5 % solution: neutral or slightly alkaline to litmus paper |
B. |
Acidity of a 5 % solution: neutral or slightly alkaline to litmus paper |
|
| B. |
Acidity of a 5 % solution: neutral or slightly alkaline to litmus paper |
| Purity |
|
| Loss on drying |
Not more than 1,0 % (anhydrous) or not more than 57 % (decahydrate) at 130 °C |
| Selenium |
Not more than 30 mg/kg |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| A. |
Positive tests for sodium and for sulphate |
| B. |
Acidity of a 5 % solution: neutral or slightly alkaline to litmus paper |
| Synonyms |
Acid sodium sulphate, sodium bisulphate, nitre cake |
| Definition |
|
| Chemical name |
Sodium hydrogen sulphate |
| Chemical formula |
NaHSO4 |
| Molecular weight |
120,06 |
| Assay |
Content not less than 95,2 % |
| Description |
White, odourless crystals or granules |
| Identification |
|
| A.Positive tests for sodium and for sulphate |
A. |
Positive tests for sodium and for sulphate |
|
| A. |
Positive tests for sodium and for sulphate |
| B.Solutions are strongly acidic |
B. |
Solutions are strongly acidic |
|
| B. |
Solutions are strongly acidic |
| Purity |
|
| Loss on drying |
Not more than 0,8 % |
| Water insoluble |
Not more than 0,05 % |
| Selenium |
Not more than 30 mg/kg |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| A. |
Positive tests for sodium and for sulphate |
| B. |
Solutions are strongly acidic |
| Definition |
|
| Chemical name |
Potassium sulphate |
| Chemical formula |
K2SO4 |
| Molecular weight |
174,25 |
| Assay |
Content not less than 99,0 % |
| Description |
Colourless or white crystals or crystalline powder |
| Identification |
|
| A.Positive tests for potassium and for sulphate |
A. |
Positive tests for potassium and for sulphate |
|
| A. |
Positive tests for potassium and for sulphate |
| B.pH of a 5 % solution |
B. |
pH of a 5 % solution |
Between 5,5 and 8,5 |
| B. |
pH of a 5 % solution |
| C.Solubility |
C. |
Solubility |
Freely soluble in water, insoluble in ethanol |
| C. |
Solubility |
| Purity |
|
| Selenium |
Not more than 30 mg/kg |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| A. |
Positive tests for potassium and for sulphate |
| Definition |
|
| Synonyms |
Potassium bisulphate, potassium acid sulphate |
| Chemical name |
Potassium hydrogen sulphate |
| Chemical formula |
KHSO4 |
| Molecular weight |
136,17 |
| Assay |
Content not less than 99 % |
| Melting point |
197oC |
| Description |
White deliquescent crystals, pieces or granules |
| Identification |
|
| A.Positive test for potassium |
A. |
Positive test for potassium |
|
| A. |
Positive test for potassium |
| B.Solubility |
B. |
Solubility |
Freely soluble in water, insoluble in ethanol |
| B. |
Solubility |
| Purity |
|
| Selenium |
Not more than 30 mg/kg |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| A. |
Positive test for potassium |
| Synonyms |
Gypsum, selenite, anhydrite |
| Definition |
|
| Chemical name |
Calcium sulphate |
| Einecs |
231-900-3 |
| Chemical formula |
CaSO4· nH2O (n = 0 or 2) |
| Molecular weight |
136,14 (anhydrous), 172,18 (dihydrate) |
| Assay |
Content not less than 99,0 % on the anhydrous basis |
| Description |
Fine, white to slightly yellowish-white odourless powder |
| Identification |
|
| A.Positive tests for calcium and for sulphate |
A. |
Positive tests for calcium and for sulphate |
|
| A. |
Positive tests for calcium and for sulphate |
| B.Solubility |
B. |
Solubility |
Slightly soluble in water, insoluble in ethanol |
| B. |
Solubility |
| Purity |
|
| Loss on drying |
Anhydrous: not more than 1,5 % (250oC, constant weight) |
| Dihydrate: not more than 23 % (ibid.) |
| Fluoride |
Not more than 30 mg/kg |
| Selenium |
Not more than 30 mg/kg |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| A. |
Positive tests for calcium and for sulphate |
| Definition |
|
| Chemical name |
Ammonium sulphate |
| Einecs |
231-984-1 |
| Chemical formula |
(NH4)2SO4 |
| Molecular weight |
132,14 |
| Assay |
Content not less than 99,0 % and not more than 100,5 % |
| Description |
White powder, shining plates or crystalline fragments |
| Identification |
|
| A.Positive tests for ammonium and for sulphate |
A. |
Positive tests for ammonium and for sulphate |
|
| A. |
Positive tests for ammonium and for sulphate |
| B.Solubility |
B. |
Solubility |
Freely soluble in water, insoluble in ethanol |
| B. |
Solubility |
| Purity |
|
| Loss on ignition |
Not more than 0,25 % |
| Selenium |
Not more than 30 mg/kg |
| Lead |
Not more than 5 mg/kg |
| A. |
Positive tests for ammonium and for sulphate |
| Synonyms |
Alum |
| Definition |
|
| Chemical name |
Aluminium sulphate |
| Einecs |
233-135-0 |
| Chemical formula |
Al2(SO4)3 |
| Molecular weight |
342,13 |
| Assay |
Content not less than 99,5 % on the ignited basis |
| Description |
White powder, shining plates or crystalline fragments |
| Identification |
|
| A.Positive tests for aluminium and for sulphateB.pH of a 5 % solution 2,9 or above |
A. |
Positive tests for aluminium and for sulphate |
B. |
pH of a 5 % solution 2,9 or above |
|
| A. |
Positive tests for aluminium and for sulphate |
| B. |
pH of a 5 % solution 2,9 or above |
| C.Solubility |
C. |
Solubility |
Freely soluble in water, insoluble in ethanol |
| C. |
Solubility |
| Purity |
|
| Loss on ignition |
Not more than 5 % (500oC, 3h) |
| Alkalies and alkaline earths |
Not more than 0,4 % |
| Selenium |
Not more than 30 mg/kg |
| Fluoride |
Not more than 30 mg/kg |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 10 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| A. |
Positive tests for aluminium and for sulphate |
| B. |
pH of a 5 % solution 2,9 or above |
| Synonyms |
Soda alum, sodium alum |
| Definition |
|
| Chemical name |
Aluminium sodium sulphate |
| Einecs |
233-277-3 |
| Chemical formula |
AlNa(SO4)2· nH2O (n = 0 or 12) |
| Molecular weight |
242,09 (anhydrous) |
| Assay |
Content on the anhydrous basis not less than 96,5 % (anhydrous) and 99,5 % (dodecahydrate) |
| Description |
Transparent crystals or white crystalline powder |
| Identification |
|
| A.Positive tests for aluminium, for sodium and for sulphate |
A. |
Positive tests for aluminium, for sodium and for sulphate |
|
| A. |
Positive tests for aluminium, for sodium and for sulphate |
| B.Solubility |
B. |
Solubility |
Dodecahydrate is freely soluble in water. The anhydrous form is slowly soluble in water. Both forms are insoluble in ethanol |
| B. |
Solubility |
| Purity |
|
| Loss on drying |
Anhydrous form: not more than 10,0 % (220oC, 16h) |
| Dodecahydrate: not more than 47,2 % (50oC-55oC, 1h then 200oC, 16h) |
| Ammonium salts |
No odour of ammonia detectable after heating |
| Selenium |
Not more than 30 mg/kg |
| Fluoride |
Not more than 30 mg/kg |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| A. |
Positive tests for aluminium, for sodium and for sulphate |
| Synonyms |
Potassium alum, potash alum |
| Definition |
|
| Chemical name |
Aluminium potassium sulphate dodecahydrate |
| Einecs |
233-141-3 |
| Chemical formula |
AlK(SO4)2· 12 H2O |
| Molecular weight |
474,38 |
| Assay |
Content not less than 99,5 % |
| Description |
Large, transparent crystals or white crystalline powder |
| Identification |
|
| A.Positive tests for aluminium, for potassium and for sulphate |
A. |
Positive tests for aluminium, for potassium and for sulphate |
|
| A. |
Positive tests for aluminium, for potassium and for sulphate |
| B.pH of a 10 % solution between 3,0 and 4,0 |
B. |
pH of a 10 % solution between 3,0 and 4,0 |
|
| B. |
pH of a 10 % solution between 3,0 and 4,0 |
| C.Solubility |
C. |
Solubility |
Freely soluble in water, insoluble in ethanol |
| C. |
Solubility |
| Purity |
|
| Ammonium salts |
No odour of ammonia detectable after heating |
| Selenium |
Not more than 30 mg/kg |
| Fluoride |
Not more than 30 mg/kg |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| A. |
Positive tests for aluminium, for potassium and for sulphate |
| B. |
pH of a 10 % solution between 3,0 and 4,0 |
| Synonyms |
Ammonium alum |
| Definition |
|
| Chemical name |
Aluminium ammonium sulphate |
| Einecs |
232-055-3 |
| Chemical formula |
AlNH4(SO4)2· 12 H2O |
| Molecular weight |
453,32 |
| Assay |
Content not less than 99,5 % |
| Description |
Large, colourless crystals or white powder |
| Identification |
|
| A.Positive tests for aluminium, for ammonium and for sulphate |
A. |
Positive tests for aluminium, for ammonium and for sulphate |
|
| A. |
Positive tests for aluminium, for ammonium and for sulphate |
| B.Solubility |
B. |
Solubility |
Freely soluble in water, soluble in ethanol |
| B. |
Solubility |
| Purity |
|
| Alkali metals and alkaline earths |
Not more than 0,5 % |
| Selenium |
Not more than 30 mg/kg |
| Fluoride |
Not more than 30 mg/kg |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| A. |
Positive tests for aluminium, for ammonium and for sulphate |
| Synonyms |
Caustic soda, lye |
| Definition |
|
| Chemical name |
Sodium hydroxide |
| Einecs |
215-185-5 |
| Chemical formula |
NaOH |
| Molecular weight |
40,0 |
| Assay |
Content of solid forms not less than 98,0 % of total alkali (as NaOH). Content of solutions accordingly, based on the stated or labelled percentage of NaOH |
| Description |
White or nearly white pellets, flakes, sticks, fused masses or other forms. Solutions are clear or slightly turbid, colourless or slightly coloured, strongly caustic and hygroscopic and when exposed to the air they absorb carbon dioxide, forming sodium carbonate |
| Identification |
|
| A.Positive tests for sodium |
A. |
Positive tests for sodium |
|
| A. |
Positive tests for sodium |
| B.A 1 % solution is strongly alkaline |
B. |
A 1 % solution is strongly alkaline |
|
| B. |
A 1 % solution is strongly alkaline |
| C.Solubility |
C. |
Solubility |
Very soluble in water. Freely soluble in ethanol |
| C. |
Solubility |
| Purity |
|
| Water insoluble and organic matter |
A 5 % solution is completely clear and colourless to slightly coloured |
| Carbonate |
Not more than 0,5 % (as Na2CO3) |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 0,5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| A. |
Positive tests for sodium |
| B. |
A 1 % solution is strongly alkaline |
| Synonyms |
Caustic potash |
| Definition |
|
| Chemical name |
Potassium hydroxide |
| Einecs |
215-181-3 |
| Chemical formula |
KOH |
| Molecular weight |
56,11 |
| Assay |
Content not less than 85,0 % of alkali calculated as KOH |
| Description |
White or nearly white pellets, flakes, sticks, fused masses or other forms |
| Identification |
|
| A.Positive tests for potassium |
A. |
Positive tests for potassium |
|
| A. |
Positive tests for potassium |
| B.A 1 % solution is strongly alkaline |
B. |
A 1 % solution is strongly alkaline |
|
| B. |
A 1 % solution is strongly alkaline |
| C.Solubility |
C. |
Solubility |
Very soluble in water. Freely soluble in ethanol |
| C. |
Solubility |
| Purity |
|
| Water insoluble matter |
A 5 % solution is completely clear and colourless |
| Carbonate |
Not more than 3,5 % (as K2CO3) |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 10 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| A. |
Positive tests for potassium |
| B. |
A 1 % solution is strongly alkaline |
| Synonyms |
Slaked lime, hydrated lime |
| Definition |
|
| Chemical name |
Calcium hydroxide |
| Einecs |
215-137-3 |
| Chemical formula |
Ca(OH)2 |
| Molecular weight |
74,09 |
| Assay |
Content not less than 92,0 % |
| Description |
White powder |
| Identification |
|
| A.Positive tests for alkali and for calcium |
A. |
Positive tests for alkali and for calcium |
|
| A. |
Positive tests for alkali and for calcium |
| B.Solubility |
B. |
Solubility |
Slightly soluble in water. Insoluble in ethanol. Soluble in glycerol |
| B. |
Solubility |
| Purity |
|
| Acid insoluble ash |
Not more than 1,0 % |
| Magnesium and alkali salts |
Not more than 1,0 % |
| Barium |
Not more than 300 mg/kg |
| Fluoride |
Not more than 50 mg/kg |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 10 mg/kg |
| A. |
Positive tests for alkali and for calcium |
| Synonyms |
Aqua ammonia, strong ammonia solution |
| Definition |
|
| Chemical name |
Ammonium hydroxide |
| Chemical formula |
NH4OH |
| Molecular weight |
35,05 |
| Assay |
Content not less than 27 % of NH3 |
| Description |
Clear, colourless solution, having an exceedingly pungent, characteristic odour |
| Identification |
|
| A.Positive tests for ammonia |
A. |
Positive tests for ammonia |
|
| A. |
Positive tests for ammonia |
| Purity |
|
| Non-volatile matter |
Not more than 0,02 % |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| A. |
Positive tests for ammonia |
| Definition |
|
| Chemical name |
Magnesium hydroxide |
| Einecs |
215-170-3 |
| Chemical formula |
Mg(OH)2 |
| Molecular weight |
58,32 |
| Assay |
Content not less than 95,0 % on the anhydrous basis |
| Description |
Odourless, white bulky powder |
| Identification |
|
| A.Positive test for magnesium and for alkali |
A. |
Positive test for magnesium and for alkali |
|
| A. |
Positive test for magnesium and for alkali |
| B.Solubility |
B. |
Solubility |
Practically insoluble in water and in ethanol |
| B. |
Solubility |
| Purity |
|
| Loss on drying |
Not more than 2,0 % (105oC, 2h) |
| Loss on ignition |
Not more than 33 % (800oC to constant weight) |
| Calcium oxide |
Not more than 1,5 % |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 10 mg/kg |
| A. |
Positive test for magnesium and for alkali |
| Synonyms |
Burnt lime |
| Definition |
|
| Chemical name |
Calcium oxide |
| Einecs |
215-138-9 |
| Chemical formula |
CaO |
| Molecular weight |
56,08 |
| Assay |
Content not less than 95,0 % on the ignited basis |
| Description |
Odourless, hard, white or greyish white masses of granules, or white to greyish powder |
| Identification |
|
| A.Positive test for alkali and for calcium |
A. |
Positive test for alkali and for calcium |
|
| A. |
Positive test for alkali and for calcium |
| B.Heat is generated on moistening the sample with water |
B. |
Heat is generated on moistening the sample with water |
|
| B. |
Heat is generated on moistening the sample with water |
| C.Solubility |
C. |
Solubility |
Slightly soluble in water. Insoluble in ethanol. Soluble in glycerol |
| C. |
Solubility |
| Purity |
|
| Loss on ignition |
Not more than 10,0 % (ca 800oC to constant weight) |
| Acid insoluble matter |
Not more than 1,0 % |
| Barium |
Not more than 300 mg/kg |
| Magnesium and alkali salts |
Not more than 1,5 % |
| Fluoride |
Not more than 50 mg/kg |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 10 mg/kg |
| A. |
Positive test for alkali and for calcium |
| B. |
Heat is generated on moistening the sample with water |
| Definition |
|
| Chemical name |
Magnesium oxide |
| Einecs |
215-171-9 |
| Chemical formula |
MgO |
| Molecular weight |
40,31 |
| Assay |
Content not less than 98,0 % on the ignited basis |
| Description |
A very bulky, white powder known as light magnesium oxide or a relative dense, white powder known as heavy magnesium oxide. 5 g of light magnesium oxide occupy a volume of 40 to 50 ml, while 5 g of heavy magnesium oxide occupy a volume of 10 to 20 ml |
| Identification |
|
| A.Positive test for alkali and for magnesium |
A. |
Positive test for alkali and for magnesium |
|
| A. |
Positive test for alkali and for magnesium |
| B.Solubility |
B. |
Solubility |
Practically insoluble in water. Insoluble in ethanol |
| B. |
Solubility |
| Purity |
|
| Loss on ignition |
Not more than 5,0 % (ca 800oC to constant weight) |
| Calcium oxide |
Not more than 1,5 % |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 10 mg/kg |
| A. |
Positive test for alkali and for magnesium |
| Synonyms |
Yellow prussiate of soda, sodium hexacyanoferrate |
| Definition |
|
| Chemical name |
Sodium ferrocyanide |
| Einecs |
237-081-9 |
| Chemical formula |
Na4Fe(CN)6· 10 H2O |
| Molecular weight |
484,1 |
| Assay |
Content not less than 99,0 % |
| Description |
Yellow crystals or crystalline powder |
| Identification |
|
| A.Positive test for sodium and for ferrocyanide |
A. |
Positive test for sodium and for ferrocyanide |
|
| A. |
Positive test for sodium and for ferrocyanide |
| Purity |
|
| Free moisture |
Not more than 1,0 % |
| Water insoluble matter |
Not more than 0,03 % |
| Chloride |
Not more than 0,2 % |
| Sulphate |
Not more than 0,1 % |
| Free cyanide |
Not detectable |
| Ferricyanide |
Not detectable |
| Lead |
Not more than 5 mg/kg |
| A. |
Positive test for sodium and for ferrocyanide |
| Synonyms |
Yellow prussiate of potash, potassium hexacyanoferrate |
| Definition |
|
| Chemical name |
Potassium ferrocyanide |
| Einecs |
237-722-2 |
| Chemical formula |
K4Fe(CN)6· 3 H2O |
| Molecular weight |
422,4 |
| Assay |
Content not less than 99,0 % |
| Description |
Lemon yellow crystals |
| Identification |
|
| A.Positive test for potassium and for ferrocyanide |
A. |
Positive test for potassium and for ferrocyanide |
|
| A. |
Positive test for potassium and for ferrocyanide |
| Purity |
|
| Free moisture |
Not more than 1,0 % |
| Water insoluble matter |
Not more than 0,03 % |
| Chloride |
Not more than 0,2 % |
| Sulphate |
Not more than 0,1 % |
| Free cyanide |
Not detectable |
| Ferricyanide |
Not detectable |
| Lead |
Not more than 5 mg/kg |
| A. |
Positive test for potassium and for ferrocyanide |
| Synonyms |
Yellow prussiate of lime, calcium hexacyanoferrate |
| Definition |
|
| Chemical name |
Calcium ferrocyanide |
| Einecs |
215-476-7 |
| Chemical formula |
Ca2Fe(CN)6· 12H2O |
| Molecular weight |
508,3 |
| Assay |
Content not less than 99,0 % |
| Description |
Yellow crystals or crystalline powder |
| Identification |
|
| A.Positive test for calcium and for ferrocyanide |
A. |
Positive test for calcium and for ferrocyanide |
|
| A. |
Positive test for calcium and for ferrocyanide |
| Purity |
|
| Free moisture |
Not more than 1,0 % |
| Water insoluble matter |
Not more than 0,03 % |
| Chloride |
Not more than 0,2 % |
| Sulphate |
Not more than 0,1 % |
| Free cyanide |
Not detectable |
| Ferricyanide |
Not detectable |
| Lead |
Not more than 5 mg/kg |
| A. |
Positive test for calcium and for ferrocyanide |
| Synonyms |
SALP |
| Definition |
|
| Chemical name |
Sodium trialuminium tetradecahydrogen octaphosphate tetrahydrate (A) or |
| Trisodium dialuminium pentadecahydrogen octaphosphate (B) |
| Einecs |
232-090-4 |
| Chemical formula |
NaAl3H14(PO4)8· 4H2O (A) |
| Na3Al2H15(PO4)8(B) |
| Molecular weight |
949,88 (A) |
| 897,82 (B) |
| Assay |
Content not less than 95,0 % (both forms) |
| Description |
White odourless powder |
| Identification |
|
| A.Positive test for sodium, for aluminium and for phosphate |
A. |
Positive test for sodium, for aluminium and for phosphate |
|
| A. |
Positive test for sodium, for aluminium and for phosphate |
| B.pH |
B. |
pH |
Acid to litmus |
| B. |
pH |
| C.Solubility |
C. |
Solubility |
Insoluble in water. Soluble in hydrochloric acid |
| C. |
Solubility |
| Purity |
|
| Loss on ignition |
19,5 %-21,0 % (A) } (750oC-800oC, 2h) |
| 15 %-16 % (B) } (750oC-800oC, 2h) |
| Fluoride |
Not more than 25 mg/kg |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 4 mg/kg |
| Cadmium |
Not more than 1 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| A. |
Positive test for sodium, for aluminium and for phosphate |
| Synonyms |
Silica, silicium dioxide |
| Definition |
Silicon dioxide is an amorphous substance, which is produced synthetically by either a vapour-phase hydrolysis process, yielding fumed silica, or by a wet process, yielding precipitated silica, silica gel, or hydrous silica. Fumed silica is produced in essentially an anhydrous state, whereas the wet-process products are obtained as hydrates or contain surface absorbed water |
| Chemical name |
Silicon dioxide |
| Einecs |
231-545-4 |
| Chemical formula |
(SiO2)n |
| Molecular weight |
60,08 (SiO2) |
| Assay |
Content after ignition not less than 99,0 % (fumed silica) or 94,0 % (hydrated forms) |
| Description |
White, fluffy powder or granules |
| Hygroscopic |
| Identification |
|
| A.Positive test for silica |
A. |
Positive test for silica |
|
| A. |
Positive test for silica |
| Purity |
|
| Loss on drying |
Not more than 2,5 % (fumed silica, 105oC, 2h) |
| Not more than 8,0 % (precipitated silica and silica gel, 105oC, 2h) |
| Not more than 70 % (hydrous silica, 105oC, 2h) |
| Loss on ignition |
Not more than 2,5 % after drying (1 000oC, fumed silica) |
| Not more than 8,5 % after drying (1 000oC, hydrated forms) |
| Soluble ionisable salts |
Not more than 5,0 % (as Na2SO4) |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| A. |
Positive test for silica |
| Definition |
Calcium silicate is a hydrous or anhydrous silicate with varying proportions of CaO and SiO2 |
| Chemical name |
Calcium silicate |
| Einecs |
215-710-8 |
| Assay |
Content on the anhydrous basis:—as SiO2not less than 50 % and not more than 95 %—as CaO not less than 3 % and not more than 35 % |
— |
as SiO2not less than 50 % and not more than 95 % |
— |
as CaO not less than 3 % and not more than 35 % |
| — |
as SiO2not less than 50 % and not more than 95 % |
| — |
as CaO not less than 3 % and not more than 35 % |
| Description |
White to off-white free-flowing powder that remains so after absorbing relatively large amounts of water or other liquids |
| Identification |
|
| A.Positive test for silicate and for calcium |
A. |
Positive test for silicate and for calcium |
|
| A. |
Positive test for silicate and for calcium |
| B.Forms a gel with mineral acids |
B. |
Forms a gel with mineral acids |
|
| B. |
Forms a gel with mineral acids |
| Purity |
|
| Loss on drying |
Not more than 10 % (105oC, 2h) |
| Loss on ignition |
Not less than 5 % and not more than 14 % (1 000oC, constant weight) |
| Sodium |
Not more than 3 % |
| Fluoride |
Not more than 50 mg/kg |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| — |
as SiO2not less than 50 % and not more than 95 % |
| — |
as CaO not less than 3 % and not more than 35 % |
| A. |
Positive test for silicate and for calcium |
| B. |
Forms a gel with mineral acids |
| Definition |
Magnesium silicate is a synthetic compound of which the molar ratio of magnesium oxide to silicon dioxide is approximately 2:5 |
| Assay |
Content not less than 15 % of MgO and not less than 67 % of SiO2on the ignited basis |
| Description |
Very fine, white, odourless powder, free from grittiness |
| Identification |
|
| A.Positive test for magnesium and for silicate |
A. |
Positive test for magnesium and for silicate |
|
| A. |
Positive test for magnesium and for silicate |
| B.pH of a 10 % slurry |
B. |
pH of a 10 % slurry |
Between 7,0 and 10,8 |
| B. |
pH of a 10 % slurry |
| Purity |
|
| Loss on drying |
Not more than 15 % (105oC, 2h) |
| Loss on ignition |
Not more than 15 % after drying (1 000oC, 20 min) |
| Water soluble salts |
Not more than 3 % |
| Free alkali |
Not more than 1 % (as NaOH) |
| Fluoride |
Not more than 10 mg/kg |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| A. |
Positive test for magnesium and for silicate |
| Definition |
|
| Chemical name |
Magnesium trisilicate |
| Chemical formula |
Mg2Si3O8· xH2O (approximate composition) |
| Einecs |
239-076-7 |
| Assay |
Content not less than 29,0 % of MgO and not less than 65,0 % of SiO2both on the ignited basis |
| Description |
Fine, white powder, free from grittiness |
| Identification |
|
| A.Positive test for magnesium and for silicate |
A. |
Positive test for magnesium and for silicate |
|
| A. |
Positive test for magnesium and for silicate |
| B.pH of a 5 % slurry |
B. |
pH of a 5 % slurry |
Between 6,3 and 9,5 |
| B. |
pH of a 5 % slurry |
| Purity |
|
| Loss on ignition |
Not less than 17 % and not more than 34 % (1 000oC) |
| Water soluble salts |
Not more than 2 % |
| Free alkali |
Not more than 1 % (as NaOH) |
| Fluoride |
Not more than 10 mg/kg |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| A. |
Positive test for magnesium and for silicate |
| Synonyms |
Talcum |
| Definition |
Naturally occurring form of hydrous magnesium silicate containing varying proportions of such associated minerals as alpha-quartz, calcite, chlorite, dolomite, magnesite, and phlogopite |
| Chemical name |
Magnesium hydrogen metasilicate |
| Einecs |
238-877-9 |
| Chemical formula |
Mg3(Si4O10)(OH)2 |
| Molecular weight |
379,22 |
| Description |
Light, homogeneous, white or almost white powder, greasy to the touch |
| Identification |
|
| A.IR absorption |
A. |
IR absorption |
Characteristic peaks at 3 677 , 1 018 and 669 cm-1 |
| A. |
IR absorption |
| B.X-ray diffraction |
B. |
X-ray diffraction |
Peaks at 9,34 /4,66/3,12 Å |
| B. |
X-ray diffraction |
| C.Solubility |
C. |
Solubility |
Insoluble in water and ethanol |
| C. |
Solubility |
| Purity |
|
| Loss on drying |
Not more than 0,5 % (105oC, 1h) |
| Acid-soluble matter |
Not more than 6 % |
| Water-soluble matter |
Not more than 0,2 % |
| Acid-soluble iron |
Not detectable |
| Arsenic |
Not more than 10 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Synonyms |
Sodium silicoaluminate, sodium aluminosilicate, aluminium sodium silicate |
| Definition |
|
| Chemical name |
Sodium aluminium silicate |
| Assay |
Content on the anhydrous basis:—as SiO2not less than 66,0 % and not more than 88,0 %—as Al2O3not less than 5,0 % and not more than 15,0 % |
— |
as SiO2not less than 66,0 % and not more than 88,0 % |
— |
as Al2O3not less than 5,0 % and not more than 15,0 % |
| — |
as SiO2not less than 66,0 % and not more than 88,0 % |
| — |
as Al2O3not less than 5,0 % and not more than 15,0 % |
| Description |
Fine white amorphous powder or beads |
| Identification |
|
| A.Positive tests for sodium, for aluminium and for silicate |
A. |
Positive tests for sodium, for aluminium and for silicate |
|
| A. |
Positive tests for sodium, for aluminium and for silicate |
| B.pH of a 5 % slurry |
B. |
pH of a 5 % slurry |
Between 6,5 and 11,5 |
| B. |
pH of a 5 % slurry |
| Purity |
|
| Loss on drying |
Not more than 8,0 % (105oC, 2h) |
| Loss on ignition |
Not less than 5,0 % and not more than 11,0 % on the anhydrous basis (1 000oC, constant weight) |
| Sodium |
Not less than 5 % and not more than 8,5 % (as Na2O) on the anhydrous basis |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| — |
as SiO2not less than 66,0 % and not more than 88,0 % |
| — |
as Al2O3not less than 5,0 % and not more than 15,0 % |
| A. |
Positive tests for sodium, for aluminium and for silicate |
| Synonyms |
Mica |
| Definition |
Natural mica consists of mainly potassium aluminium silicate (muscovite) |
| Einecs |
310-127-6 |
| Chemical name |
Potassium aluminium silicate |
| Chemical formulae |
KAl2[AlSi3O10](OH)2 |
| Molecular weight |
398 |
| Assay |
Content not less than 98 % |
| Description |
Light grey to white crystalline platelets or powder |
| Identification |
|
| A.Solubility |
A. |
Solubility |
Insoluble in water, diluted acids and alkali and organic solvents |
| A. |
Solubility |
| Purity |
|
| Loss on drying |
Not more than 0,5 % (105oC, 2h) |
| Antimony |
Not more than 20 mg/kg |
| Zinc |
Not more than 25 mg/kg |
| Barium |
Not more than 25 mg/kg |
| Chromium |
Not more than 100 mg/kg |
| Copper |
Not more than 25 mg/kg |
| Nickel |
Not more than 50 mg/kg |
| Arsenic |
Not more than 3 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Cadmium |
Not more than 2 mg/kg |
| Lead |
Not more than 10 mg/kg |
| Synonyms |
Calcium aluminosilicate, calcium silicoaluminate, aluminium calcium silicate |
| Definition |
|
| Chemical name |
Calcium aluminium silicate |
| Assay |
Content on the anhydrous basis:—as SiO2not less than 44,0 % and not more than 50,0 %—as Al2O3not less than 3,0 % and not more than 5,0 %—as CaO not less than 32,0 % and not more than 38,0 % |
— |
as SiO2not less than 44,0 % and not more than 50,0 % |
— |
as Al2O3not less than 3,0 % and not more than 5,0 % |
— |
as CaO not less than 32,0 % and not more than 38,0 % |
| — |
as SiO2not less than 44,0 % and not more than 50,0 % |
| — |
as Al2O3not less than 3,0 % and not more than 5,0 % |
| — |
as CaO not less than 32,0 % and not more than 38,0 % |
| Description |
Fine white, free-flowing powder |
| Identification |
|
| A.Positive tests for calcium, for aluminium and for silicate |
A. |
Positive tests for calcium, for aluminium and for silicate |
|
| A. |
Positive tests for calcium, for aluminium and for silicate |
| Purity |
|
| Loss on drying |
Not more than 10,0 % (105oC, 2h) |
| Loss on ignition |
Not less than 14,0 % and not more than 18,0 on the anhydrous basis (1 000oC, constant weight) |
| Fluoride |
Not more than 50 mg/kg |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 10 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| — |
as SiO2not less than 44,0 % and not more than 50,0 % |
| — |
as Al2O3not less than 3,0 % and not more than 5,0 % |
| — |
as CaO not less than 32,0 % and not more than 38,0 % |
| A. |
Positive tests for calcium, for aluminium and for silicate |
| Definition |
Bentonite is a natural clay containing a high proportion of montmorillonite, a native hydrated aluminium silicate in which some aluminium and silicon atoms were naturally replaced by other atoms such as magnesium and iron. Calcium and sodium ions are trapped between the mineral layers. There are four common types of bentonite: natural sodium bentonite, natural calcium bentonite, sodium-activated bentonite and acid-activated bentonite |
| Einecs |
215-108-5 |
| Chemical formula |
(Al, Mg)8(Si4O10)4(OH)8· 12H2O |
| Molecular weight |
819 |
| Assay |
Montmorillonite content not less than 80 % |
| Description |
Very fine, yellowish or greyish white powder or granules. The structure of bentonite allows it to absorb water in its structure and on its external surface (swelling properties) |
| Identification |
|
| A.Methylene blue test |
A. |
Methylene blue test |
|
| A. |
Methylene blue test |
| B.X-Ray diffraction |
B. |
X-Ray diffraction |
Characteristic peaks at 12,5 /15 A |
| B. |
X-Ray diffraction |
| C.IR absorption |
C. |
IR absorption |
Peaks at 428/470/530/1 110 -1 020 /3 750 — 3 400 cm-1 |
| C. |
IR absorption |
| Purity |
|
| Loss on drying |
Not more than 15,0 % (105oC, 2h) |
| Arsenic |
Not more than 2 mg/kg |
| Lead |
Not more than 20 mg/kg |
| Synonyms |
Kaolin, light or heavy |
| Definition |
Aluminium silicate hydrous (kaolin) is a purified white plastic clay composed of kaolinite, potassium aluminium silicate, feldspar and quartz. Processing should not include calcination. The raw kaolinitic clay used in the production of aluminium silicate shall have a level of dioxin which does not make it injurious to health or unfit for human consumption |
| Einecs |
215-286-4 (kaolinite) |
| Chemical formula |
Al2Si2O5(OH)4(kaolinite) |
| Molecular weight |
264 |
| Assay |
Content not less than 90 % (sum of silica and alumina, after ignition) |
| Silica (SiO2) |
Between 45 % and 55 % |
| Alumina (Al2O3) |
Between 30 % and 39 % |
| Description |
Fine, white or greyish white, unctuous powder. Kaolin is made up of loose aggregations of randomly oriented stacks of kaolinite flakes or of individual hexagonal flakes |
| Identification |
|
| A.Positive tests for alumina and for silicate |
A. |
Positive tests for alumina and for silicate |
|
| A. |
Positive tests for alumina and for silicate |
| B.X-ray diffraction: |
B. |
X-ray diffraction: |
Characteristic peaks at 7,18 /3,58/2,38/1,78 Å |
| B. |
X-ray diffraction: |
| C.IR absorption: |
C. |
IR absorption: |
Peaks at 3 700 and 3 620 cm-1 |
| C. |
IR absorption: |
| Purity |
|
| Loss on ignition |
Between 10 and 14 % (1 000oC, constant weight) |
| Water soluble matter |
Not more than 0,3 % |
| Acid soluble matter |
Not more than 2 % |
| Iron |
Not more than 5 % |
| Potassium oxide (K2O) |
Not more than 5 % |
| Carbon |
Not more than 0,5 % |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| A. |
Positive tests for alumina and for silicate |
| Definition |
Linear fatty acids, caprylic acid (C8), capric acid (C10), laurinc acid (C12), myristic acid (C14), palmitic acid (C16), stearic acid (C18), oleic acid (C18:1) |
| Chemical name |
octanoic acid (C8), decanoic acid (C10), dodecanoic acid (C12), tetradecanoic acid (C14), hexadecanoic acid (C16), octadecanoic acid (C18), 9-octadecenoic acid (C18:1) |
| Assay |
Not less than 98 % by chromatography |
| Description |
A colourless liquid or white solid obtained from oils and fats |
| Identification |
|
| A.Individual fatty acids can be identified by acid value, iodine value, gas chromatog-raphy and molecular weight |
A. |
Individual fatty acids can be identified by acid value, iodine value, gas chromatog-raphy and molecular weight |
|
| A. |
Individual fatty acids can be identified by acid value, iodine value, gas chromatog-raphy and molecular weight |
| Purity |
|
| Residue on ignition |
Not more than 0,1 % |
| Unsaponifiable matter |
Not more than 1,5 % |
| Water |
Not more than 0,2 % (Karl Fischer method) |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 1 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| A. |
Individual fatty acids can be identified by acid value, iodine value, gas chromatog-raphy and molecular weight |
| Synonyms |
D-gluconic acid, dextronic acid |
| Definition |
Gluconic acid is an aqueous solution of gluconic acid and glucono-delta-lactone |
| Chemical name |
Gluconic acid |
| Chemical formula |
C6H12O7(gluconic acid) |
| Molecular weight |
196,2 |
| Assay |
Content not less than 50,0 % (as gluconic acid) |
| Description |
Colourless to light yellow, clear syrupy liquid |
| Identification |
|
| A.Formation of phenylhydrazine derivative positive |
A. |
Formation of phenylhydrazine derivative positive |
Compound formed melts between 196oC and 202oC with decomposition |
| A. |
Formation of phenylhydrazine derivative positive |
| Purity |
|
| Residue on ignition |
Not more than 1,0 % |
| Reducing matter |
Not more than 0,75 % (as D-glucose) |
| Chloride |
Not more than 350 mg/kg |
| Sulphate |
Not more than 240 mg/kg |
| Sulphite |
Not more than 20 mg/kg |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| A. |
Formation of phenylhydrazine derivative positive |
| Synonyms |
Gluconolactone, GDL, D-gluconic acid delta-lactone, delta-gluconolactone |
| Definition |
Glucono-delta-lactone is the cyclic 1,5-intramolecular ester of D-gluconic acid. In aqueous media it is hydrolysed to an equilibrium mixture of D-gluconic acid (55 %-66 %) and the delta- and gamma-lactones |
| Chemical name |
D-Glucono-1,5 -lactone |
| Einecs |
202-016-5 |
| Chemical formula |
C6H10O6 |
| Molecular weight |
178,14 |
| Assay |
Content not less than 99,0 % on the anhydrous basis |
| Description |
Fine, white, nearly odourless, crystalline powder |
| Identification |
|
| A.Formation of phenylhydrazine derivative of gluconic acid positive |
A. |
Formation of phenylhydrazine derivative of gluconic acid positive |
Compound formed melts between 196oC and 202oC with decomposition |
| A. |
Formation of phenylhydrazine derivative of gluconic acid positive |
| B.Solubility |
B. |
Solubility |
Freely soluble in water. Sparingly soluble in ethanol |
| B. |
Solubility |
| C.Melting point |
C. |
Melting point |
152oC ± 2oC |
| C. |
Melting point |
| Purity |
|
| Water |
Not more than 1,0 % (Karl Fischer method) |
| Reducing substances |
Not more than 0,75 % (as D-glucose) |
| Lead |
Not more than 2 mg/kg |
| A. |
Formation of phenylhydrazine derivative of gluconic acid positive |
| Synonyms |
Sodium salt of D-gluconic acid |
| Definition |
|
| Chemical name |
Sodium D-gluconate |
| Einecs |
208-407-7 |
| Chemical formula |
C6H11NaO7(anhydrous) |
| Molecular weight |
218,14 |
| Assay |
Content not less than 98,0 % |
| Description |
White to tan, granular to fine, crystalline powder |
| Identification |
|
| A.Positive test for sodium and for gluconate |
A. |
Positive test for sodium and for gluconate |
|
| A. |
Positive test for sodium and for gluconate |
| B.Solubility |
B. |
Solubility |
Very soluble in water. Sparingly soluble in ethanol |
| B. |
Solubility |
| C.pH of a 10 % solution |
C. |
pH of a 10 % solution |
Between 6,5 and 7,5 |
| C. |
pH of a 10 % solution |
| Purity |
|
| Reducing matter |
Not more than 1,0 % (as D-glucose) |
| Lead |
Not more than 2 mg/kg |
| A. |
Positive test for sodium and for gluconate |
| Synonyms |
Potassium salt of D-gluconic acid |
| Definition |
|
| Chemical name |
Potassium D-gluconate |
| Einecs |
206-074-2 |
| Chemical formula |
C6H11KO7(anhydrous) |
| C6H11KO7· H2O (monohydrate) |
| Molecular weight |
234,25 (anhydrous) |
| 252,26 (monohydrate) |
| Assay |
Content not less than 97,0 % and not more than 103,0 % on dried basis |
| Description |
Odourless, free flowing white to yellowish white, crystalline powder or granules |
| Identification |
|
| A.Positive test for potassium and for gluconate |
A. |
Positive test for potassium and for gluconate |
|
| A. |
Positive test for potassium and for gluconate |
| B.pH of a 10 % solution |
B. |
pH of a 10 % solution |
Between 7,0 and 8,3 |
| B. |
pH of a 10 % solution |
| Purity |
|
| Loss on drying |
Anhydrous: not more than 3,0 % (105oC, 4h, vacuum)Monohydrate: not less than 6 % and not more than 7,5 % (105oC, 4h, vacuum) |
| Reducing substances |
Not more than 1,0 % (as D-glucose) |
| Lead |
Not more than 2 mg/kg |
| A. |
Positive test for potassium and for gluconate |
| Synonyms |
Calcium salt of D-gluconic acid |
| Definition |
|
| Chemical name |
Calcium di-D-gluconate |
| Einecs |
206-075-8 |
| Chemical formula |
C12H22CaO14(anhydrous) |
| C12H22CaO14· H2O (monohydrate) |
| Molecular weight |
430,38 (anhydrous form) |
| 448,39 (monohydrate) |
| Assay |
Content not less than 98,0 % and not more than 102 % on the anhydrous and monohydrate basis |
| Description |
Odourless, white crystalline granules or powder, stable in air |
| Identification |
|
| A.Positive test for calcium and for gluconate |
A. |
Positive test for calcium and for gluconate |
|
| A. |
Positive test for calcium and for gluconate |
| B.Solubility |
B. |
Solubility |
Soluble in water, insoluble in ethanol |
| B. |
Solubility |
| C.pH of a 5 % solution |
C. |
pH of a 5 % solution |
Between 6,0 and 8,0 |
| C. |
pH of a 5 % solution |
| Purity |
|
| Loss on drying |
Not more than 3,0 % (105oC, 16h) (anhydrous) |
| Not more than 2,0 % (105oC, 16h) (monohydrate) |
| Reducing substances |
Not more than 1,0 % (as D-glucose) |
| Lead |
Not more than 2 mg/kg |
| A. |
Positive test for calcium and for gluconate |
| Definition |
|
| Chemical name |
Ferrous di-D-gluconate dihydrate |
| Iron(II) di-gluconate dihydrate |
| Einecs |
206-076-3 |
| Chemical formulae |
C12H22FeO14·2H2O |
| Molecular weight |
482,17 |
| Assay |
Content not less than 95 % on the dried basis |
| Description |
Pale greenish-yellow to yellowish-grey powder or granules, which may have a faint odour of burnt sugar |
| Identification |
|
| A.Solubility |
A. |
Solubility |
Soluble with slight heating in water. Practically insoluble in ethanol |
| A. |
Solubility |
| B.Positive test for ferrous ion |
B. |
Positive test for ferrous ion |
|
| B. |
Positive test for ferrous ion |
| C.Formation of phenylhy-drazine derivative of gluconic acid positive |
C. |
Formation of phenylhy-drazine derivative of gluconic acid positive |
|
| C. |
Formation of phenylhy-drazine derivative of gluconic acid positive |
| D.pH of a 10 % solution |
D. |
pH of a 10 % solution |
Between 4 and 5,5 |
| D. |
pH of a 10 % solution |
| Purity |
|
| Loss on drying |
Not more than 10 % (105oC, 16 hours) |
| Oxalic acid |
Not detectable |
| Iron (Fe III) |
Not more than 2 % |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Cadmium |
Not more than 1 mg/kg |
| Reducing substances |
Not more than 0,5 % expressed as glucose |
| B. |
Positive test for ferrous ion |
| C. |
Formation of phenylhy-drazine derivative of gluconic acid positive |
| Synonyms |
Iron(II) lactate |
| Iron(II) 2-hydroxy propanoate |
| Propanoic acid, 2-hydroxy-iron(2 +) salt (2:1) |
| Definition |
|
| Chemical name |
Ferrous 2-hydroxy propanoate |
| Einecs |
227-608-0 |
| Chemical formulae |
C6H10FeO6·xH2O (x = 2 or 3) |
| Molecular weight |
270,02 (dihydrate) |
| 288,03 (trihydrate) |
| Assay |
Content not less than 96 % on the dried basis |
| Description |
Greenish-white crystals or light green powder having a characteristic smell |
| Identification |
|
| A.Solubility |
A. |
Solubility |
Soluble in water. Practically insoluble in ethanol |
| A. |
Solubility |
| B.Positive test for ferrous ion and for lactate |
B. |
Positive test for ferrous ion and for lactate |
|
| B. |
Positive test for ferrous ion and for lactate |
| C.pH of a 2 % solution |
C. |
pH of a 2 % solution |
Between 4 and 6 |
| C. |
pH of a 2 % solution |
| Purity |
|
| Loss on drying |
Not more than 18 % (100oC, under vacuum, approximately 700 mm Hg) |
| Iron (Fe III) |
Not more than 0,6 % |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Cadmium |
Not more than 1 mg/kg |
| B. |
Positive test for ferrous ion and for lactate |
| Synonyms |
4-Hexyl-1,3-benzenediol |
| Hexylresorcinol |
| Definition |
|
| Chemical name |
4-Hexylresorcinol |
| Einecs |
205-257-4 |
| Chemical formula |
C12H18O2 |
| Molecular weight |
197,24 |
| Assay |
Not less than 98 % on the dried basis |
| Description |
White powder |
| Identification |
|
| A.Solubility |
A. |
Solubility |
Freely soluble in ether and acetone; very slightly soluble in water |
| A. |
Solubility |
| B.Nitric acid test |
B. |
Nitric acid test |
To 1 ml of a saturated solution of the sample, add 1 ml of nitric acid. A light red colour appears |
| B. |
Nitric acid test |
| C.Bromine test |
C. |
Bromine test |
To 1 ml of saturated solution of the sample, add 1 ml of bromine TS. A yellow, flocculent precipitate dissolves producing a yellow solution |
| C. |
Bromine test |
| D.Melting range |
D. |
Melting range |
62 to 67oC |
| D. |
Melting range |
| Purity |
|
| Acidity |
Not more than 0,05 % |
| Sulphated ash |
Not more than 0,1 % |
| Resorcinol and other phenols |
Shake about 1 g of the sample with 50 ml of water for a few minutes, filter, and to the filtrate add 3 drops of ferric chloride TS. No red or blue colour is produced |
| Nickel |
Not more than 2 mg/kg |
| Lead |
Not more than 2 mg/kg |
| Mercury |
Not more than 3 mg/kg |
| Synonyms |
L-Glutamic acid, L-α-aminoglutaric acid |
| Definition |
|
| Chemical name |
L-Glutamic acid, L-2-amino-pentanedioic acid |
| Einecs |
200-293-7 |
| Chemical formula |
C5H9NO4 |
| Molecular weight |
147,13 |
| Assay |
Content not less than 99,0 % and not more than 101,0 % on the anhydrous basis |
| Description |
White crystals or crystalline powder |
| Identification |
|
| A.Positive test for glutamic acid by thin layer chromatography |
A. |
Positive test for glutamic acid by thin layer chromatography |
|
| A. |
Positive test for glutamic acid by thin layer chromatography |
| B.Specific rotation [α]D20 |
B. |
Specific rotation [α]D20 |
Between +31,5oand +32,2o |
| B. |
Specific rotation [α]D20 |
| (10 % solution (anhydrous basis) in 2N HCl, 200 mm tube) |
| C.pH of a saturated solution |
C. |
pH of a saturated solution |
Between 3,0 and 3,5 |
| C. |
pH of a saturated solution |
| Purity |
|
| Loss on drying |
Not more than 0,2 % (80oC, 3h) |
| Sulphated ash |
Not more than 0,2 % |
| Chloride |
Not more than 0,2 % |
| Pyrrolidone carboxylic acid |
Not more than 0,2 % |
| Lead |
Not more than 2 mg/kg |
| A. |
Positive test for glutamic acid by thin layer chromatography |
| B. |
Specific rotation [α]D20 |
| C. |
pH of a saturated solution |
| Synonyms |
Sodium glutamate, MSG |
| Definition |
|
| Chemical name |
Monosodium L-glutamate monohydrate |
| Einecs |
205-538-1 |
| Chemical formula |
C5H8NaNO4· H2O |
| Molecular weight |
187,13 |
| Assay |
Content not less than 99,0 % and not more than 101,0 % on the anhydrous basis |
| Description |
White, practically odourless crystals or crystalline powder |
| Identification |
|
| A.Positive test for sodium |
A. |
Positive test for sodium |
|
| A. |
Positive test for sodium |
| B.Positive test for glutamic acid by thin-layer chromatography |
B. |
Positive test for glutamic acid by thin-layer chromatography |
|
| B. |
Positive test for glutamic acid by thin-layer chromatography |
| C.Specific rotation [α]D20 |
C. |
Specific rotation [α]D20 |
Between +24,8oand +25,3o |
| C. |
Specific rotation [α]D20 |
| (10 % solution (anhydrous basis) in 2N HCl, 200 mm tube) |
| D.pH of a 5 % solution |
D. |
pH of a 5 % solution |
Between 6,7 and 7,2 |
| D. |
pH of a 5 % solution |
| Purity |
|
| Loss on drying |
Not more than 0,5 % (98oC, 5h) |
| Chloride |
Not more than 0,2 % |
| Pyrrolidone carboxylic acid |
Not more than 0,2 % |
| Lead |
Not more than 2 mg/kg |
| A. |
Positive test for sodium |
| B. |
Positive test for glutamic acid by thin-layer chromatography |
| C. |
Specific rotation [α]D20 |
| Synonyms |
Potassium glutamate, MPG |
| Definition |
|
| Chemical name |
Monopotassium L-glutamate monohydrate |
| Einecs |
243-094-0 |
| Chemical formula |
C5H8KNO4· H2O |
| Molecular weight |
203,24 |
| Assay |
Content not less than 99,0 % and not more than 101,0 % on the anhydrous basis |
| Description |
White, practically odourless crystals or crystalline powder |
| Identification |
|
| A.Positive test for potassium |
A. |
Positive test for potassium |
|
| A. |
Positive test for potassium |
| B.Positive test for glutamic acid by thin-layer chromatog-raphy |
B. |
Positive test for glutamic acid by thin-layer chromatog-raphy |
|
| B. |
Positive test for glutamic acid by thin-layer chromatog-raphy |
| C.Specific rotation [α]D20 |
C. |
Specific rotation [α]D20 |
Between +22,5oand +24,0o |
| C. |
Specific rotation [α]D20 |
| (10 % solution (anhydrous basis) in 2N HCl, 200 mm tube) |
| D.pH of a 2 % solution |
D. |
pH of a 2 % solution |
Between 6,7 and 7,3 |
| D. |
pH of a 2 % solution |
| Purity |
|
| Loss on drying |
Not more than 0,2 % (80oC, 5h) |
| Chloride |
Not more than 0,2 % |
| Pyrrolidone carboxylic acid |
Not more than 0,2 % |
| Lead |
Not more than 2 mg/kg |
| A. |
Positive test for potassium |
| B. |
Positive test for glutamic acid by thin-layer chromatog-raphy |
| C. |
Specific rotation [α]D20 |
| Synonyms |
Calcium glutamate |
| Definition |
|
| Chemical name |
Monocalcium di-L-glutamate |
| Einecs |
242-905-5 |
| Chemical formula |
C10H16CaN2O8· x H2O (x = 0, 1, 2 or 4) |
| Molecular weight |
332,32 (anhydrous) |
| Assay |
Content not less than 98,0 % and not more than 102,0 % on the anhydrous basis |
| Description |
White, practically odourless crystals or crystalline powder |
| Identification |
|
| A.Positive test for calcium |
A. |
Positive test for calcium |
|
| A. |
Positive test for calcium |
| B.Positive test for glutamic acid by thin-layer chromatog-raphy |
B. |
Positive test for glutamic acid by thin-layer chromatog-raphy |
|
| B. |
Positive test for glutamic acid by thin-layer chromatog-raphy |
| C.Specific rotation [α]D20 |
C. |
Specific rotation [α]D20 |
Between +27,4 and +29,2 (for calcium diglutamate with x = 4) (10 % solution (anhydrous basis) in 2N HCl, 200 mm tube) |
| C. |
Specific rotation [α]D20 |
| Purity |
|
| Water |
Not more than 19,0 % (for calcium diglutamate with x = 4) (Karl Fischer) |
| Chloride |
Not more than 0,2 % |
| Pyrrolidone carboxylic acid |
Not more than 0,2 % |
| Lead |
Not more than 2 mg/kg |
| A. |
Positive test for calcium |
| B. |
Positive test for glutamic acid by thin-layer chromatog-raphy |
| C. |
Specific rotation [α]D20 |
| Synonyms |
Ammonium glutamate |
| Definition |
|
| Chemical name |
Monoammonium L-glutamate monohydrate |
| Einecs |
231-447-1 |
| Chemical formula |
C5H12N2O4· H2O |
| Molecular weight |
182,18 |
| Assay |
Content not less than 99,0 % and not more 101,0 % on the anhydrous basis |
| Description |
White, practically odourless crystals or crystalline powder |
| Identification |
|
| A.Positive test for ammonium |
A. |
Positive test for ammonium |
|
| A. |
Positive test for ammonium |
| B.Positive test for glutamic acid by thin-layer chromatog-raphy |
B. |
Positive test for glutamic acid by thin-layer chromatog-raphy |
|
| B. |
Positive test for glutamic acid by thin-layer chromatog-raphy |
| C.Specific rotation [α]D20 |
C. |
Specific rotation [α]D20 |
Between +25,4oand +26,4o |
| C. |
Specific rotation [α]D20 |
| (10 % solution (anhydrous basis) in 2N HCl, 200 mm tube) |
| D.pH of a 5 % solution |
D. |
pH of a 5 % solution |
Between 6,0 and 7,0 |
| D. |
pH of a 5 % solution |
| Purity |
|
| Loss on drying |
Not more than 0,5 % (50oC, 4h) |
| Sulphated ash |
Not more than 0,1 % |
| Pyrrolidone carboxylic acid |
Not more than 0,2 % |
| Lead |
Not more than 2 mg/kg |
| A. |
Positive test for ammonium |
| B. |
Positive test for glutamic acid by thin-layer chromatog-raphy |
| C. |
Specific rotation [α]D20 |
| Synonyms |
Magnesium glutamate |
| Definition |
|
| Chemical name |
Monomagnesium di-L-glutamate tetrahydrate |
| Einecs |
242-413-0 |
| Chemical formula |
C10H16MgN2O8· 4H2O |
| Molecular weight |
388,62 |
| Assay |
Content not less than 95,0 % and not more than 105,0 % on the anhydrous basis |
| Description |
Odourless, white or off-white crystals or powder |
| Identification |
|
| A.Positive test for magnesium |
A. |
Positive test for magnesium |
|
| A. |
Positive test for magnesium |
| B.Positive test for glutamic acid by thin-layer chromatog-raphy |
B. |
Positive test for glutamic acid by thin-layer chromatog-raphy |
|
| B. |
Positive test for glutamic acid by thin-layer chromatog-raphy |
| C.Specific rotation [α]D20 |
C. |
Specific rotation [α]D20 |
Between +23,8oand +24,4o |
| C. |
Specific rotation [α]D20 |
| (10 % solution (anhydrous basis) in 2N HCl, 200 mm tube) |
| D.pH of a 10 % solution |
D. |
pH of a 10 % solution |
Between 6,4 and 7,5 |
| D. |
pH of a 10 % solution |
| Purity |
|
| Water |
Not more than 24 % (Karl Fischer) |
| Chloride |
Not more than 0,2 % |
| Pyrrolidone carboxylic acid |
Not more than 0,2 % |
| Lead |
Not more than 2 mg/kg |
| A. |
Positive test for magnesium |
| B. |
Positive test for glutamic acid by thin-layer chromatog-raphy |
| C. |
Specific rotation [α]D20 |
| Synonyms |
Guanylic acid |
| Definition |
|
| Chemical name |
Guanosine-5'-monophosphoric acid |
| Einecs |
201-598-8 |
| Chemical formula |
C10H14N5O8P |
| Molecular weight |
363,22 |
| Assay |
Content not less than 97,0 % on the anhydrous basis |
| Description |
Odourless, colourless or white crystals or white crystalline powder |
| Identification |
|
| A.Positive test for ribose and for organic phosphate |
A. |
Positive test for ribose and for organic phosphate |
|
| A. |
Positive test for ribose and for organic phosphate |
| B.pH of a 0,25 % solution |
B. |
pH of a 0,25 % solution |
Between 1,5 and 2,5 |
| B. |
pH of a 0,25 % solution |
| C.Spectrometry: |
C. |
Spectrometry: |
maximum absorption of a 20 mg/l solution in 0,01 N HCl at 256 nm |
| C. |
Spectrometry: |
| Purity |
|
| Loss on drying |
Not more than 1,5 % (120oC, 4h) |
| Other nucleotides |
Not detectable by thin-layer chromatography |
| Lead |
Not more than 2 mg/kg |
| A. |
Positive test for ribose and for organic phosphate |
| B. |
pH of a 0,25 % solution |
| Synonyms |
Sodium guanylate, sodium 5'-guanylate |
| Definition |
|
| Chemical name |
Disodium guanosine-5'-monophosphate |
| Einecs |
221-849-5 |
| Chemical formula |
C10H12N5Na2O8P· x H2O (x = ca. 7) |
| Molecular weight |
407,19 (anhydrous) |
| Assay |
Content not less than 97,0 % on the anhydrous basis |
| Description |
Odourless, colourless or white crystals or white crystalline powder |
| Identification |
|
| A.Positive test for ribose, for organic phosphate, and for sodium |
A. |
Positive test for ribose, for organic phosphate, and for sodium |
|
| A. |
Positive test for ribose, for organic phosphate, and for sodium |
| B.pH of a 5 % solution |
B. |
pH of a 5 % solution |
Between 7,0 and 8,5 |
| B. |
pH of a 5 % solution |
| C.Spectrometry: |
C. |
Spectrometry: |
maximum absorption of a 20 mg/l solution in 0,01 N HCl at 256 nm |
| C. |
Spectrometry: |
| Purity |
|
| Loss on drying |
Not more than 25 % (120oC, 4h) |
| Other nucleotides |
Not detectable by thin-layer chromatography |
| Lead |
Not more than 2 mg/kg |
| A. |
Positive test for ribose, for organic phosphate, and for sodium |
| Synonyms |
Potassium guanylate, potassium 5'-guanylate |
| Definition |
|
| Chemical name |
Dipotassium guanosine-5'-monophosphate |
| Einecs |
226-914-1 |
| Chemical formula |
C10H12K2N5O8P |
| Molecular weight |
439,40 |
| Assay |
Content not less than 97,0 % on the anhydrous basis |
| Description |
Odourless, colourless or white crystals or white crystalline powder |
| Identification |
|
| A.Positive test for ribose, for organic phosphate, and for potassium |
A. |
Positive test for ribose, for organic phosphate, and for potassium |
|
| A. |
Positive test for ribose, for organic phosphate, and for potassium |
| B.pH of a 5 % solution |
B. |
pH of a 5 % solution |
Between 7,0 and 8,5 |
| B. |
pH of a 5 % solution |
| C.Spectrometry: |
C. |
Spectrometry: |
maximum absorption of a 20 mg/l solution in 0,01 N HCl at 256 nm |
| C. |
Spectrometry: |
| Purity |
|
| Loss on drying |
Not more than 5 % (120oC, 4h) |
| Other nucleotides |
Not detectable by thin-layer chromatography |
| Lead |
Not more than 2 mg/kg |
| A. |
Positive test for ribose, for organic phosphate, and for potassium |
| Synonyms |
Calcium 5'-guanylate |
| Definition |
|
| Chemical name |
Calcium guanosine-5'-monophosphate |
| Chemical formula |
C10H12CaN5O8P· nH2O |
| Molecular weight |
401,20 (anhydrous) |
| Assay |
Content not less than 97,0 % on the anhydrous basis |
| Description |
Odourless, white or off-white crystals or powder |
| Identification |
|
| A.Positive test for ribose, for organic phosphate, and for calcium |
A. |
Positive test for ribose, for organic phosphate, and for calcium |
|
| A. |
Positive test for ribose, for organic phosphate, and for calcium |
| B.pH of a 0,05 % solution |
B. |
pH of a 0,05 % solution |
Between 7,0 and 8,0 |
| B. |
pH of a 0,05 % solution |
| C.Spectrometry: |
C. |
Spectrometry: |
maximum absorption of a 20 mg/l solution in 0,01 N HCl at 256 nm |
| C. |
Spectrometry: |
| Purity |
|
| Loss on drying |
Not more than 23,0 % (120oC, 4h) |
| Other nucleotides |
Not detectable by thin-layer chromatography |
| Lead |
Not more than 2 mg/kg |
| A. |
Positive test for ribose, for organic phosphate, and for calcium |
| B. |
pH of a 0,05 % solution |
| Synonyms |
5'-Inosinic acid |
| Definition |
|
| Chemical name |
Inosine-5'-monophosphoric acid |
| Einecs |
205-045-1 |
| Chemical formula |
C10H13N4O8P |
| Molecular weight |
348,21 |
| Assay |
Content not less than 97,0 % on the anhydrous basis |
| Description |
Odourless, colourless or white crystals or powder |
| Identification |
|
| A.Positive test for ribose, and for organic phosphate |
A. |
Positive test for ribose, and for organic phosphate |
|
| A. |
Positive test for ribose, and for organic phosphate |
| B.pH of a 5 % solution |
B. |
pH of a 5 % solution |
Between 1,0 and 2,0 |
| B. |
pH of a 5 % solution |
| C.Spectrometry: |
C. |
Spectrometry: |
maximum absorption of a 20 mg/l solution in 0,01 N HCl at 250 nm |
| C. |
Spectrometry: |
| Purity |
|
| Loss on drying |
Not more than 3,0 % (120oC, 4h) |
| Other nucleotides |
Not detectable by thin-layer chromatography |
| Lead |
Not more than 2 mg/kg |
| A. |
Positive test for ribose, and for organic phosphate |
| Synonyms |
Sodium inosinate, sodium 5'-inosinate |
| Definition |
|
| Chemical name |
Disodium inosine-5'-monophosphate |
| Einecs |
225-146-4 |
| Chemical formula |
C10H11N4Na2O8P· H2O |
| Molecular weight |
392,17 (anhydrous) |
| Assay |
Content not less than 97,0 % on the anhydrous basis |
| Description |
Odourless, colourless or white crystals or powder |
| Identification |
|
| A.Positive test for ribose, and for organic phosphate and for sodium |
A. |
Positive test for ribose, and for organic phosphate and for sodium |
|
| A. |
Positive test for ribose, and for organic phosphate and for sodium |
| B.pH of a 5 % solution |
B. |
pH of a 5 % solution |
Between 7,0 and 8,5 |
| B. |
pH of a 5 % solution |
| C.Spectrometry: |
C. |
Spectrometry: |
maximum absorption of a 20 mg/l solution in 0,01 N HCl at 250 nm |
| C. |
Spectrometry: |
| Purity |
|
| Water |
Not more than 28,5 % (Karl Fischer) |
| Other nucleotides |
Not detectable by thin-layer chromatography |
| Lead |
Not more than 2 mg/kg |
| A. |
Positive test for ribose, and for organic phosphate and for sodium |
| Synonyms |
Potassium inosinate, potassium 5'-inosinate |
| Definition |
|
| Chemical name |
Dipotassium inosine-5'-monophosphate |
| Einecs |
243-652-3 |
| Chemical formula |
C10H11K2N4O8P |
| Molecular weight |
424,39 |
| Assay |
Content not less than 97,0 % on the anhydrous basis |
| Description |
Odourless, colourless or white crystals or powder |
| Identification |
|
| A.Positive test for ribose, and for organic phosphate and for potassium |
A. |
Positive test for ribose, and for organic phosphate and for potassium |
|
| A. |
Positive test for ribose, and for organic phosphate and for potassium |
| B.pH of a 5 % solution |
B. |
pH of a 5 % solution |
Between 7,0 and 8,5 |
| B. |
pH of a 5 % solution |
| C.Spectrometry: |
C. |
Spectrometry: |
maximum absorption of a 20 mg/l solution in 0,01 N HCl at 250 nm |
| C. |
Spectrometry: |
| Purity |
|
| Water |
Not more than 10,0 % (Karl Fischer) |
| Other nucleotides |
Not detectable by thin-layer chromatography |
| Lead |
Not more than 2 mg/kg |
| A. |
Positive test for ribose, and for organic phosphate and for potassium |
| Synonyms |
Calcium 5'-inosinate |
| Definition |
|
| Chemical name |
Calcium inosine-5'-monophosphate |
| Chemical formula |
C10H11CaN4O8P· nH2O |
| Molecular weight |
386,19 (anhydrous) |
| Assay |
Content not less than 97,0 % on the anhydrous basis |
| Description |
Odourless, colourless or white crystals or powder |
| Identification |
|
| A.Positive test for ribose, and for organic phosphate and for calcium |
A. |
Positive test for ribose, and for organic phosphate and for calcium |
|
| A. |
Positive test for ribose, and for organic phosphate and for calcium |
| B.pH of a 0,05 % solution |
B. |
pH of a 0,05 % solution |
Between 7,0 and 8,0 |
| B. |
pH of a 0,05 % solution |
| C.Spectrometry: |
C. |
Spectrometry: |
maximum absorption of a 20 mg/l solution in 0,01 N HCl at 250 nm |
| C. |
Spectrometry: |
| Purity |
|
| Water |
Not more than 23,0 % (Karl Fischer) |
| Other nucleotides |
Not detectable by thin-layer chromatography |
| Lead |
Not more than 2 mg/kg |
| A. |
Positive test for ribose, and for organic phosphate and for calcium |
| B. |
pH of a 0,05 % solution |
| Definition |
|
| Chemical name |
Calcium 5'-ribonucleotide is essentially a mixture of calcium inosine-5'-monophosphate and calcium guanosine-5'-monophosphate |
| Chemical formula |
C10H11N4CaO8P· nH2O y |
| C10H12N5CaO8P· nH2O |
| Assay |
Content of both major components not less than 97,0 %, and of each component not less than 47,0 % and not more than 53 %, in every case on the anhydrous basis |
| Description |
Odourless, white or nearly white crystals or powder |
| Identification |
|
| A.Positive test for ribose, and for organic phosphate and for calcium |
A. |
Positive test for ribose, and for organic phosphate and for calcium |
|
| A. |
Positive test for ribose, and for organic phosphate and for calcium |
| B.pH of a 0,05 % solution |
B. |
pH of a 0,05 % solution |
Between 7,0 and 8,0 |
| B. |
pH of a 0,05 % solution |
| Purity |
|
| Water |
Not more than 23,0 % (Karl Fischer) |
| Other nucleotides |
Not detectable by thin-layer chromatography |
| Lead |
Not more than 2 mg/kg |
| A. |
Positive test for ribose, and for organic phosphate and for calcium |
| B. |
pH of a 0,05 % solution |
| Synonyms |
Sodium 5'-ribonucleotide |
| Definition |
|
| Chemical name |
Disodium 5'-ribonucleotide is essentially a mixture of disodium inosine-5'-monophosphate and disodium guanosine-5'-monophosphate |
| Chemical formula |
C10H11N4Na2O8P · nH2O and |
| C10H12N5Na2O8P· nH2O |
| Assay |
Content of both major components not less than 97,0 %, and of each component not less than 47,0 % and not more than 53 %, in every case on the anhydrous basis |
| Description |
Odourless, white or nearly white crystals or powder |
| Identification |
|
| A.Positive test for ribose, and for organic phosphate and for sodium |
A. |
Positive test for ribose, and for organic phosphate and for sodium |
|
| A. |
Positive test for ribose, and for organic phosphate and for sodium |
| B.pH of a 5 % solution |
B. |
pH of a 5 % solution |
Between 7,0 and 8,5 |
| B. |
pH of a 5 % solution |
| Purity |
|
| Water |
Not more than 26,0 % (Karl Fischer) |
| Other nucleotides |
Not detectable by thin-layer chromatography |
| Lead |
Not more than 2 mg/kg |
| A. |
Positive test for ribose, and for organic phosphate and for sodium |
| Synonyms(gly) |
Aminoacetic acid, glycocoll |
| (Na salt) |
Sodium glycinate |
| Definition |
|
| Chemical name (gly) |
Aminoacetic acid |
| (Na salt) |
Sodium glycinate |
| Chemical formula (gly) |
C2H5NO2 |
| (Na salt) |
C2H5NO2Na |
| Einecs (gly) |
200-272-2 |
| (Na salt) |
227-842-3 |
| Molecular weight (gly) |
75,07 |
| (Na salt) |
98 |
| Assay |
Content not less than 98,5 % on the anhydrous basis |
| Description |
White crystals or crystalline powder |
| Identification |
|
| A.Positive test for amino acid (gly and Na salt) |
A. |
Positive test for amino acid (gly and Na salt) |
|
| A. |
Positive test for amino acid (gly and Na salt) |
| B.Positive test for sodium (Na salt) |
B. |
Positive test for sodium (Na salt) |
|
| B. |
Positive test for sodium (Na salt) |
| Purity |
|
| Loss on drying (gly) |
Not more than 0,2 % (105oC, 3h) |
| (Na salt) |
Not more than 0,2 % (105oC, 3h) |
| Residue on ignition (gly) |
Not more than 0,1 % |
| (Na salt) |
Not more than 0,1 % |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| A. |
Positive test for amino acid (gly and Na salt) |
| B. |
Positive test for sodium (Na salt) |
| Synonyms |
Acetic acid, zinc salt, dihydrate |
| Definition |
|
| Chemical name |
Zinc acetate dihydrate |
| Chemical formula |
C4H6O4Zn· 2H2O |
| Molecular weight |
219,51 |
| Assay |
Content not less than 98 % and not more than 102 % of C4H6O4Zn · 2H2O |
| Description |
Colourless crystals or fine, off-white powder |
| Identification |
|
| A.Positive tests for acetate and for zinc |
A. |
Positive tests for acetate and for zinc |
|
| A. |
Positive tests for acetate and for zinc |
| B.pH of a 5 % solution |
B. |
pH of a 5 % solution |
Between 6,0 and 8,0 |
| B. |
pH of a 5 % solution |
| Purity |
|
| Insoluble matter |
Not more than 0,005 % |
| Chlorides |
Not more than 50 mg/kg |
| Sulphates |
Not more than 100 mg/kg |
| Alkalines and alkaline earths |
Not more than 0,2 % |
| Organic volatile impurities |
Passes test |
| Iron |
Not more than 50 mg/kg |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 20 mg/kg |
| Cadmium |
Not more than 5 mg/kg |
| A. |
Positive tests for acetate and for zinc |
| Synonyms |
Polydimethyl siloxane, silicone fluid, silicone oil, dimethyl silicone |
| Definition |
Dimethylpolysiloxane is a mixture of fully methylated linear siloxane polymers containing repeating units of the formula (CH3)2SiO and stablised with trimethylsiloxy end-blocking units of the formula (CH3)3SiO |
| Chemical name |
Siloxanes and silicones, di-methyl |
| Chemical formula |
(CH3)3-Si-[O-Si(CH3)2]n-O-Si(CH3)3 |
| Assay |
Content of total silicon not less than 37,3 % and not more than 38,5 % |
| Description |
Clear, colourless, viscous liquid |
| Identification |
|
| A.Specific gravity (25o/25oC) |
A. |
Specific gravity (25o/25oC) |
Between 0,964 and 0,977 |
| A. |
Specific gravity (25o/25oC) |
| B.Refractive index [n]D25 |
B. |
Refractive index [n]D25 |
Between 1,400 and 1,405 |
| B. |
Refractive index [n]D25 |
| C.Infrared spectrum characteristic of the compound |
C. |
Infrared spectrum characteristic of the compound |
|
| C. |
Infrared spectrum characteristic of the compound |
| Purity |
|
| Loss on drying |
Not more than 0,5 % (150oC, 4h) |
| Viscosity |
Not less than 1,00 · 10-4m2s-1at 25oC |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| A. |
Specific gravity (25o/25oC) |
| B. |
Refractive index [n]D25 |
| C. |
Infrared spectrum characteristic of the compound |
| Synonyms |
White wax, yellow wax |
| Definition |
Yellow bees wax is the wax obtained by melting the walls of the honeycomb made by the honey bee,Apis melliferaL., with hot water and removing foreign matter |
| White beeswax is obtained by bleaching yellow beeswax |
| Einecs |
232-383-7 (beeswax) |
| Description |
Yellowish white (white form) or yellowish to greyish brown (yellow form) pieces or plates with a fine-grained and non-crystalline fracture, having an agreeable, honey-like odour |
| Identification |
|
| A.Melting range |
A. |
Melting range |
Between 62oC and 65oC |
| A. |
Melting range |
| B.Specific gravity |
B. |
Specific gravity |
About 0,96 |
| B. |
Specific gravity |
| C.Solubility |
C. |
Solubility |
Insoluble in water |
| C. |
Solubility |
| Sparingly soluble in alcohol |
| Very soluble in chloroform and ether |
| Purity |
|
| Acid value |
Not less than 17 and not more than 24 |
| Saponification value |
87-104 |
| Peroxide value |
Not more than 5 |
| Glycerol and other polyols |
Not more than 0,5 % (as glycerol) |
| Ceresin, paraffins and certain other waxes |
Absent |
| Fats, Japan wax, rosin and soaps |
Absent |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Definition |
Candelilla wax is a purified wax obtained from the leaves of the candelilla plant,Euphorbia antisyphilitica |
| Einecs |
232-347-0 |
| Description |
Hard, yellowish brown, opaque to translucent wax |
| Identification |
|
| A.Specific gravity |
A. |
Specific gravity |
About 0,983 |
| A. |
Specific gravity |
| B.Melting range |
B. |
Melting range |
Between 68,5oC and 72,5oC |
| B. |
Melting range |
| C.Solubility |
C. |
Solubility |
Insoluble in water |
| C. |
Solubility |
| Soluble in chloroform and toluene |
| Purity |
|
| Acid value |
Not less than 12 and not more than 22 |
| Saponification value |
Not less than 43 and not more than 65 |
| Glycerol and other polyols |
Not more than 0,5 % (as glycerol) |
| Ceresin, paraffins and certain other waxes |
Absent |
| Fats, Japan wax, rosin and soaps |
Absent |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Definition |
Carnauba wax is a purified wax obtained from the leaf buds and leaves of the Brazilian Mart wax palm,Copernicia cerifera |
| Einecs |
232-399-4 |
| Description |
Light brown to pale yellow powder or flakes or hard and brittle solid with a resinous fracture |
| Identification |
|
| A.Specific gravity |
A. |
Specific gravity |
About 0,997 |
| A. |
Specific gravity |
| B.Melting range |
B. |
Melting range |
Between 82oC and 86oC |
| B. |
Melting range |
| C.Solubility |
C. |
Solubility |
Insoluble in water |
| C. |
Solubility |
| Partly soluble in boiling ethanol |
| Soluble in chloroform and diethyl ether |
| Purity |
|
| Sulphated ash |
Not more than 0,25 % |
| Acid value |
Not less than 2 and not more than 7 |
| Ester value |
Not less than 71 and not more than 88 |
| Unsaponifiable matter |
Not less than 50 % and not more than 55 % |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Synonyms |
Bleached shellac, white shellac |
| Definition |
Shellac is the purified and bleached lac, the resinous secretion of the insectLaccifer (Tachardia) laccaKerr (Fam.Coccidae) |
| Einecs |
232-549-9 |
| Description |
Bleached shellac — off-white, amorphous, granular resin |
| Wax-free bleached shellac — light yellow, amorphous, granular resin |
| Identification |
|
| A.Solubility |
A. |
Solubility |
Insoluble in water; freely (though very slowly) soluble in alcohol; slightly soluble in acetone |
| A. |
Solubility |
| B.Acid value |
B. |
Acid value |
Between 60 and 89 |
| B. |
Acid value |
| Purity |
|
| Loss on drying |
Not more than 6,0 % (40oC, over silica gel, 15h) |
| Rosin |
Absent |
| Wax |
Bleached shellac: not more than 5,5 % |
| Wax-free bleached shellac: not more than 0,2 % |
| Lead |
Not more than 2 mg/kg |
| Synonyms |
Petroleum wax |
| Definition |
Microcrystalline wax is a refined mixture of solid, saturated hydrocarbons, mainly branched paraffin, obtained from petroleum |
| Description |
White to amber, odourless wax |
| Identification |
|
| A.Solubility |
A. |
Solubility |
Insoluble in water, very slightly soluble in ethanol |
| A. |
Solubility |
| B.Refractive Index |
B. |
Refractive Index |
nD1001,434 -1,448 |
| B. |
Refractive Index |
| Purity |
|
| Molecular weight |
Average not less than 500 |
| Viscosity at 100oC |
Not less than 1,1 · 10-5m2s-1 |
| Residue on ignition |
Not more than 0,1 % |
| Carbon number at 5 % distillation point |
Not more than 5 % of molecules with carbon number less than 25 |
| Colour |
Passes test |
| Sulphur |
Not more than 0,4 % |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 3 mg/kg |
| Polycyclic aromatic compounds |
The polycyclic aromatic hydrocarbons, obtained by extraction with dimethyl sulfoxide, shall meet the following ultraviolet absorbency limits: |
|
nm |
Maximum absorbance per cm path length |
|
280-289 |
0,15 |
|
290-299 |
0,12 |
|
300-359 |
0,08 |
|
360-400 |
0,02 |
| Synonyms |
Hydrogenated polydec-1-ene |
| Hydrogenated poly-alpha-olefin |
| Definition |
|
| Chemical formula |
C10nH20n+2where n = 3-6 |
| Molecular weight |
560 (average) |
| Assay |
Not less than 98,5 % of hydrogenated poly-1-decene, having the following oligomer distribution: |
| C30: 13-37 % |
| C40: 35-70 % |
| C50: 9-25 % |
| C60: 1-7 % |
| Description |
|
| Identification |
|
| A.Solubility |
A. |
Solubility |
Insoluble in water; slightly soluble in ethanol; soluble in toluene |
| A. |
Solubility |
| B.Burning |
B. |
Burning |
Burns with a bright flame and a paraffin-like characteristic smell |
| B. |
Burning |
| Purity |
|
| Viscosity |
Between 5,7 × 10-6and 6,1 × 10-6m2s-1at 100oC |
| Compounds with carbon number less than 30 |
Not more than 1,5 % |
| Readily carbonisable substances |
After 10 minutes shaking in a boiling water bath, a tube of sulphuric acid with a 5 g sample of hydrogenated poly-1-decene is not darker than a very slight straw colour |
| Nickel |
Not more than 1 mg/kg |
| Lead |
Not more than 1 mg/kg |
| Definition |
Montan acids and/or esters with ethylene glycol and/or 1,3-butanediol and/or glycerol |
| Chemical name |
Montan acid esters |
| Description |
Almost white to yellowish flakes, powder, granules or pellets |
| Identification |
|
| A.Density (20oC) |
A. |
Density (20oC) |
Between 0,98 and 1,05 |
| A. |
Density (20oC) |
| B.Drop point |
B. |
Drop point |
Greater than 77oC |
| B. |
Drop point |
| Purity |
|
| Acid value |
Not more than 40 |
| Glycerol |
Not more than 1 % (by gas chromatography) |
| Other polyols |
Not more than 1 % (by gas chromatography) |
| Other wax types |
Not detectable (by differential scanning calorimetry and/or infrared spectroscopy) |
| Arsenic |
Not more than 2 mg/kg |
| Chromium |
Not more than 3 mg/kg |
| Lead |
Not more than 2 mg/kg |
| Definition |
Polar reaction products from mild oxidation of polyethylene |
| Chemical name |
Oxidised polyethylene |
| Description |
Almost white flakes, powder, granules or pellets |
| Identification |
|
| A.Density (20oC) |
A. |
Density (20oC) |
Between 0,92 and 1,05 |
| A. |
Density (20oC) |
| B.Drop point |
B. |
Drop point |
Greater than 95oC |
| B. |
Drop point |
| Purity |
|
| Acid value |
Not more than 70 |
| Viscosity at 120oC |
Not less than 8,1 · 10-5m2s-1 |
| Other wax types |
Not detectable (by differential scanning calorimetry and/or infrared spectroscopy) |
| Oxygen |
Not more than 9,5 % |
| Chromium |
Not more than 5 mg/kg |
| Lead |
Not more than 2 mg/kg |
| Definition |
L-cysteine hydrochloride or hydrochloride monohydrate. Human hair may not be used as a source for this substance |
| Einecs |
200-157-7 (anhydrous) |
| Chemical formula |
C3H7NO2S· HCl· n H20 (where n = 0 or 1) |
| Molecular weight |
157,62 (anhydrous) |
| Assay |
Content not less than 98,0 % and not more than 101,5 % on the anhydrous basis |
| Description |
White powder or colourless crystals |
| Identification |
|
| A.Solubility |
A. |
Solubility |
Freely soluble in water and in ethanol |
| A. |
Solubility |
| B.Melting range |
B. |
Melting range |
Anhydrous form melts at about 175oC |
| B. |
Melting range |
| C.Specific rotation |
C. |
Specific rotation |
[α]20D: between +5,0oand +8,0oor |
| C. |
Specific rotation |
| [α]25D: between +4,9oand 7,9o |
| Purity |
|
| Loss on drying |
Between 8,0 % and 12,0 % |
| Not more than 2,0 % (anhydrous form) |
| Residue on ignition |
Not more than 0,1 % |
| Ammonium-ion |
Not more than 200 mg/kg |
| Arsenic |
Not more than 1,5 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Synonyms |
Urea |
| Definition |
|
| Einecs |
200-315-5 |
| Chemical formula |
CH4N2O |
| Molecular weight |
60,06 |
| Assay |
Content not less than 99,0 % on the anhydrous basis |
| Description |
Colourless to white, prismatic, crystalline powder or small, white pellets |
| Identification |
|
| A.Solubility |
A. |
Solubility |
Very soluble in water |
| A. |
Solubility |
| Soluble in ethanol |
| B.Precipitation with nitric acid |
B. |
Precipitation with nitric acid |
To pass the test a white, crystalline precipitate is formed |
| B. |
Precipitation with nitric acid |
| C.Colour reaction |
C. |
Colour reaction |
To pass the test a reddish-violet colour is produced |
| C. |
Colour reaction |
| D.Melting range |
D. |
Melting range |
132oC to 135oC |
| D. |
Melting range |
| Purity |
|
| Loss on drying |
Not more than 1,0 % (105oC, 1h) |
| Sulphated ash |
Not more than 0,1 % |
| Ethanol-insoluble matter |
Not more than 0,04 % |
| Alkalinity |
Passes test |
| Ammonium-ion |
Not more than 500 mg/kg |
| Biuret |
Not more than 0,1 % |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| B. |
Precipitation with nitric acid |
| Definition |
|
| Chemical name |
Argon |
| Einecs |
231-147-0 |
| Chemical formula |
Ar |
| Molecular weight |
40 |
| Assay |
Not less than 99 % |
| Description |
Colourless, odourless, non-flammable gas |
| Purity |
|
| Water |
Not more than 0,05 % |
| Methane and other hydrocarbons calculated as methane |
Not more than 100 μl/l |
| Definition |
|
| Chemical name |
Helium |
| Einecs |
231-168-5 |
| Chemical formula |
He |
| Molecular weight |
4 |
| Assay |
Not less than 99 % |
| Description |
Colourless, odourless, non-flammable gas |
| Purity |
|
| Water |
Not more than 0,05 % |
| Methane and other hydrocarbons calculated as methane |
Not more than 100 μl/l |
| Definition |
|
| Chemical name |
Nitrogen |
| Einecs |
231-783-9 |
| Chemical formula |
N2 |
| Molecular weight |
28 |
| Assay |
Not less than 99 % |
| Description |
Colourless, odourless, non-flammable gas |
| Purity |
|
| Water |
Not more than 0,05 % |
| Carbon monoxide |
Not more than 10 μl/l |
| Methane and other hydrocarbons calculated as methane |
Not more than 100 μl/l |
| Nitrogen dioxide and nitrogen oxide |
Not more than 10 μl/l |
| Oxygen |
Not more than 1 % |
| Definition |
|
| Chemical name |
Nitrous oxide |
| Einecs |
233-032-0 |
| Chemical formula |
N2O |
| Molecular weight |
44 |
| Assay |
Not less than 99 % |
| Description |
Colourless, non-flammable gas, sweetish odour |
| Purity |
|
| Water |
Not more than 0,05 % |
| Carbon monoxide |
Not more than 30 μl/l |
| Nitrogen dioxide and nitrogen oxide |
Not more than 10 μl/l |
| Synonyms |
n-Butane |
| Definition |
|
| Chemical name |
Butane |
| Chemical formula |
CH3CH2CH2CH3 |
| Molecular weight |
58,12 |
| Assay |
Content not less than 96 % |
| Description |
Colourless gas or liquid with mild, characteristic odour |
| Identification |
|
| A.Vapour pressure |
A. |
Vapour pressure |
108,935 kPa at 20oC |
| A. |
Vapour pressure |
| Purity |
|
| Methane |
Not more than 0,15 % v/v |
| Ethane |
Not more than 0,5 % v/v |
| Propane |
Not more than 1,5 % v/v |
| Isobutane |
Not more than 3,0 % v/v |
| 1,3-butadiene |
Not more than 0,1 % v/v |
| Moisture |
Not more than 0,005 % |
| Synonyms |
2-methyl propane |
| Definition |
|
| Chemical name |
2-methyl propane |
| Chemical formula |
(CH3)2CH CH3 |
| Molecular weight |
58,12 |
| Assay |
Content not less than 94 % |
| Description |
Colourless gas or liquid with mild, characteristic odour |
| Identification |
|
| A.Vapour pressure |
A. |
Vapour pressure |
205,465 kPa at 20oC |
| A. |
Vapour pressure |
| Purity |
|
| Methane |
Not more than 0,15 % v/v |
| Ethane |
Not more than 0,5 % v/v |
| Propane |
Not more than 2,0 % v/v |
| n-Butane |
Not more than 4,0 % v/v |
| 1,3 -butadiene |
Not more than 0,1 % v/v |
| Moisture |
Not more than 0,005 % |
| Definition |
|
| Chemical name |
Propane |
| Chemical formula |
CH3CH2CH3 |
| Molecular weight |
44,09 |
| Assay |
Content not less than 95 % |
| Description |
Colourless gas or liquid with mild, characteristic odour |
| Identification |
|
| A.Vapour pressure |
A. |
Vapour pressure |
732,910 kPa at 20oC |
| A. |
Vapour pressure |
| Purity |
|
| Methane |
Not more than 0,15 % v/v |
| Ethane |
Not more than 1,5 % v/v |
| Isobutane |
Not more than 2,0 % v/v |
| n-Butane |
Not more than 1,0 % v/v |
| 1,3-butadiene |
Not more than 0,1 % v/v |
| Moisture |
Not more than 0,005 % |
| Definition |
|
| Chemical name |
Oxygen |
| Einecs |
231-956-9 |
| Chemical formula |
O2 |
| Molecular weight |
32 |
| Assay |
Not less than 99 % |
| Description |
Colourless, odourless, non-flammable gas |
| Purity |
|
| Water |
Not more than 0,05 % |
| Methane and other hydrocarbons calculated as methane |
Not more than 100 μl/l |
| Definition |
|
| Chemical name |
Hydrogen |
| Einecs |
215-605-7 |
| Chemical formula |
H2 |
| Molecular weight |
2 |
| Assay |
Content not less than 99,9 % |
| Description |
Colourless, odourless, highly flammable gas |
| Purity |
|
| Water |
Not more than 0,005 % v/v |
| Oxygen |
Not more than 0,001 % v/v |
| Nitrogen |
Not more than 0,75 % v/v |
| Synonyms |
Soapbark extract, Quillay bark extract, Panama bark extract, Quillai extract, Murillo bark extract, China bark extract |
| Definition |
Quillaia extract is obtained by aqueous extraction ofQuillaia saponariaMolina, or otherQuillaiaspecies, trees of the familyRosaceae. It contains a number of triterpenoid saponins consisting of glycosides of quillaic acid. Some sugars including glucose, galactose, arabinose, xylose, and rhamnose are also present, along with tannin, calcium oxalate and other minor components |
| Description |
Quillaia extract in the powder form is light brown with a pink tinge. It is also available as an aqueous solution |
| Identification |
|
| A.pH of a 2,5 % solution |
A. |
pH of a 2,5 % solution |
Between 4,5 and 5,5 |
| A. |
pH of a 2,5 % solution |
| Purity |
|
| Water |
Not more than 6,0 % (Karl Fischer method) (powder form only) |
| Arsenic |
Not more than 2 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| A. |
pH of a 2,5 % solution |
| Definition |
Invertase is produced fromSaccharomyces cerevisiae |
| Systematic name |
β-D-Fructofuranoside fructohydrolase |
| Enzyme Commission No |
EC 3.2.1.26 |
| Einecs |
232-615-7 |
| Purity |
|
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Cadmium |
Not more than 0,5 mg/kg |
| Total bacterial count |
Not more than 50 000 /g |
| Salmonellaspp. |
Absent by test in 25 g |
| Coliforms |
Not more than 30/g |
| E. coli |
Absent by test in 25 g |
| Synonyms |
Lysozyme hydrochloride |
| Muramidase |
| Definition |
Lysozyme is a linear polypeptide obtained from hens' egg whites consisting of 129 amino acids. It possesses enzymatic activity in its ability to hydrolyse the β(1-4) linkages between N-acetylmuramic acid and N-acetylglucosamine in the outer membranes of bacterial species, in particular gram-positive organisms. Is usually obtained as the hydrochloride |
| Chemical name |
Enzyme Commission (EC) No: 3.2.1.17 |
| Einecs |
232-620-4 |
| Molecular weight |
About 14 000 |
| Assay |
Content not less than 950 mg/g on the anhydrous basis |
| Description |
White, odourless powder having a slightly sweet taste |
| Identification |
|
| A.Isoelectric point 10,7 |
A. |
Isoelectric point 10,7 |
|
| A. |
Isoelectric point 10,7 |
| B.pH of a 2 % aqueous solution between 3,0 and 3,6 |
B. |
pH of a 2 % aqueous solution between 3,0 and 3,6 |
|
| B. |
pH of a 2 % aqueous solution between 3,0 and 3,6 |
| C.Absorption maximum of an aqueous solution (25 mg/100 ml) at 281 nm, a minimum at 252 nm |
C. |
Absorption maximum of an aqueous solution (25 mg/100 ml) at 281 nm, a minimum at 252 nm |
|
| C. |
Absorption maximum of an aqueous solution (25 mg/100 ml) at 281 nm, a minimum at 252 nm |
| Purity |
|
| Water content |
Not more than 6,0 % (Karl Fischer method) (powder form only) |
| Residue on ignition |
Not more than 1,5 % |
| Nitrogen |
Not less than 16,8 % and not more than 17,8 % |
| Arsenic |
Not more than 1 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Mercury |
Not more than 1 mg/kg |
| Heavy metals (as Pb) |
Not more than 10 mg/kg |
| Microbiological criteria |
|
| Total bacterial count |
Not more than 5 × 104col/g |
| Salmonellae |
Absent in 25 g |
| Staphylococcus aureus |
Absent in 1 g |
| Escherichia coli |
Absent in 1 g |
| A. |
Isoelectric point 10,7 |
| B. |
pH of a 2 % aqueous solution between 3,0 and 3,6 |
| C. |
Absorption maximum of an aqueous solution (25 mg/100 ml) at 281 nm, a minimum at 252 nm |
| Synonyms |
Modified polydextroses |
| Definition |
Randomly bonded glucose polymers with some sorbitol end-groups, and with citric acid or phosphoric acid residues attached to the polymers by mono or diester bonds. They are obtained by melting and condensation of the ingredients and consist of approximately 90 parts D-glucose, 10 parts sorbitol and 1 part citric acid or 0,1 part phosphoric acid. The 1,6-glucosidic linkage predominates in the polymers but other linkages are present. The products contain small quantities of free glucose, sorbitol, levoglucosan (1,6-anhydro-D-glucose) and citric acid and may be neutralised with any food grade base and/or decolorised and deionised for further purification. The products may also be partially hydrogenated with Raney nickel catalyst to reduce residual glucose. Polydextrose-N is neutralised polydextrose |
| Assay |
Content not less than 90 % of polymer on the ash free and anhydrous basis |
| Description |
White to light tan-coloured solid. Polydextroses dissolve in water to give a clear, colourless to straw coloured solution |
| Identification |
|
| A.Positive tests for sugar and for reducing sugar |
A. |
Positive tests for sugar and for reducing sugar |
|
| A. |
Positive tests for sugar and for reducing sugar |
| B.pH of a 10 % solution |
B. |
pH of a 10 % solution |
Between 2,5 and 7,0 for polydextrose |
| B. |
pH of a 10 % solution |
| Between 5,0 and 6,0 for polydextrose-N |
| Purity |
|
| Water |
Not more than 4,0 % (Karl Fischer method) |
| Sulphated ash |
Not more than 0,3 % (polydextrose) |
| Not more than 2,0 % (polydextrose N) |
| Nickel |
Not more than 2 mg/kg for hydrogenated polydextroses |
| 1,6-Anhydro-D-glucose |
Not more than 4,0 % on the ash-free and the dried basis |
| Glucose and sorbitol |
Not more than 6,0 % combined on the ash-free and the dried basis; glucose and sorbitol are determined separately |
| Molecular weight limit |
Negative test for polymers of molecular weight greater than 22 000 |
| 5-Hydroxy-methylfurfural |
Not more than 0,1 % (polydextrose) |
| Not more than 0,05 % (polydextrose-N) |
| Lead |
Not more than 0,5 mg/kg |
| A. |
Positive tests for sugar and for reducing sugar |
| Synonyms |
Povidone |
| PVP |
| Soluble polyvinylpyrrolidone |
| Definition |
|
| Chemical name |
Polyvinylpyrrolidone, poly-[1-(2-oxo-1-pyrrolidinyl)-ethylene] |
| Chemical formula |
(C6H9NO)n |
| Molecular weight |
Not less than 25 000 |
| Assay |
Content not less than 11,5 % and not more than 12,8 % of nitrogen (N) on the anhydrous basis |
| Description |
White or nearly white powder |
| Identification |
|
| A.Solubility |
A. |
Solubility |
Soluble in water and in ethanol. Insoluble in ether |
| A. |
Solubility |
| B.pH of a 5 % solution |
B. |
pH of a 5 % solution |
Between 3,0 and 7,0 |
| B. |
pH of a 5 % solution |
| Purity |
|
| Water |
Not more than 5 % (Karl Fischer) |
| Total ash |
Not more than 0,1 % |
| Aldehyde |
Not more than 500 mg/kg (as acetaldehyde) |
| Free-N-vinylpyrrolidone |
Not more than 10 mg/kg |
| Hydrazine |
Not more than 1 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Synonyms |
Crospovidone |
| Cross linked polyvidone |
| Insoluble polyvinylpyrrolidone |
| Definition |
Polyvinylpolypyrrolidone is a poly-[1-(2-oxo-1-pyrrolidinyl)-ethylene], cross linked in a random fashion. It is produced by the polymerisation of N-vinyl-2-pyrrolidone in the presence of either caustic catalyst or N, N'-divinyl-imidazolidone. Due to its insolubility in all common solvents the molecular weight range is not amenable to analytical determination |
| Chemical name |
Polyvinylpyrrolidone, poly-[1-(2-oxo-1-pyrrolidinyl)-ethylene] |
| Chemical formula |
(C6H9NO)n |
| Assay |
Content not less than 11 % and not more than 12,8 % nitrogen (N) on the anhydrous basis |
| Description |
A white hygroscopic powder with a faint, non-objectionable odour |
| Identification |
|
| A.Solubility |
A. |
Solubility |
Insoluble in water, ethanol and ether |
| A. |
Solubility |
| B.pH of a 1 % suspension in water |
B. |
pH of a 1 % suspension in water |
Between 5,0 and 8,0 |
| B. |
pH of a 1 % suspension in water |
| Purity |
|
| Water |
Not more than 6 % (Karl Fischer) |
| Sulphated ash |
Not more than 0,4 % |
| Water-soluble matter |
Not more than 1 % |
| Free-N-vinylpyrrolidone |
Not more than 10 mg/kg |
| Free-N, N'-divinyl-imidazolidone |
Not more than 2 mg/kg |
| Lead |
Not more than 5 mg/kg |
| B. |
pH of a 1 % suspension in water |
| Definition |
Linear, neutral glucan consisting mainly of maltotriose units connected by -1,6 glycosidic bonds. It is produced by fermentation from a food-grade hydrolysed starch using a non-toxin-producing strain ofAureobasidium pullulans. After completion of the fermentation, the fungal cells are removed by microfiltration, the filtrate is heat-sterilised and pigments and other impurities are removed by adsorption and ion exchange chromatography |
| Einecs |
232-945-1 |
| Chemical formula |
(C6H10O5)x |
| Assay |
Not less than 90 % of glucan on the dried basis |
| Description |
White to off-white odourless powder |
| Identification |
|
| A.Solubility |
A. |
Solubility |
Soluble in water, practically insoluble in ethanol |
| A. |
Solubility |
| B.pH of 10 % solution |
B. |
pH of 10 % solution |
5,0 to 7,0 |
| B. |
pH of 10 % solution |
| C.Precipitation with polyethylene glycol 600 |
C. |
Precipitation with polyethylene glycol 600 |
Add 2 ml of polyethylene glycol 600 to 10 ml of a 2 % aqueous solution of pullulan. A white precipitate is formed |
| C. |
Precipitation with polyethylene glycol 600 |
| D.Depoly-merisation with pullulanase |
D. |
Depoly-merisation with pullulanase |
Prepare two test tubes each with 10 ml of a 10 % pullulan solution. Add 0,1 ml pullulanase solution having activity 10 units/g to one test tube, and 0,1 ml water to the other. After incubation at about 25oC for 20 minutes, the viscosity of the pullulanase-treated solution is visibly lower than that of the untreated solution |
| D. |
Depoly-merisation with pullulanase |
| Purity |
|
| Loss on drying |
Not more than 6 % (90oC, pressure not more than 50 mm Hg, 6 h) |
| Mono-, di- and oligosaccharides |
Not more than 10 % expressed as glucose |
| Viscosity |
100 to 180 mm2/s (10 % w/w aqueous solution at 30oC) |
| Lead |
Not more than 1 mg/kg |
| Yeast and moulds |
Not more than 100 colonies per gram |
| Coliforms |
Absent in 25 g |
| Salmonella |
Absent in 25 g |
| C. |
Precipitation with polyethylene glycol 600 |
| D. |
Depoly-merisation with pullulanase |
| Definition |
Oxidised starch is starch treated with sodium hypochlorite |
| Description |
White or nearly white powder or granules or (if pregelatinised) flakes, amorphous powder or coarse particles |
| Identification |
|
| A.If not pregelatinised: by microscopic observation |
A. |
If not pregelatinised: by microscopic observation |
|
| A. |
If not pregelatinised: by microscopic observation |
| B.Iodine staining positive (dark blue to light red colour) |
B. |
Iodine staining positive (dark blue to light red colour) |
|
| B. |
Iodine staining positive (dark blue to light red colour) |
| Purity(all values expressed on an anhydrous basis except for loss on drying) |
|
| Loss on drying |
Not more than 15,0 % for cereal starch |
| Not more than 21,0 % for potato starch |
| Not more than 18,0 % for other starches |
| Carboxyl groups |
Not more than 1,1 % |
| Sulphur dioxide |
Not more than 50 mg/kg for modified cereal starches |
| Not more than 10 mg/kg for other modified starches, unless otherwise specified |
| Arsenic |
Not more than 1 mg/kg |
| Lead |
Not more than 2 mg/kg |
| Mercury |
Not more than 0,1 mg/kg |
| A. |
If not pregelatinised: by microscopic observation |
| B. |
Iodine staining positive (dark blue to light red colour) |
| Definition |
Monostarch phosphate is starch esterified with ortho-phosphoric acid, or sodium or potassium ortho-phosphate or sodium tripolyphosphate |
| Description |
White or nearly white powder or granules or (if pregelatinised) flakes, amorphous powder or coarse particles |
| Identification |
|
| A.If not pregelatinised: by microscopic observation |
A. |
If not pregelatinised: by microscopic observation |
|
| A. |
If not pregelatinised: by microscopic observation |
| B.Iodine staining positive (dark blue to light red colour) |
B. |
Iodine staining positive (dark blue to light red colour) |
|
| B. |
Iodine staining positive (dark blue to light red colour) |
| Purity(all values expressed on an anhydrous basis except for loss on drying) |
|
| Loss on drying |
Not more than 15,0 % for cereal starch |
| Not more than 21,0 % for potato starch |
| Not more than 18,0 % for other starches |
| Residual phosphate |
Not more than 0,5 % (as P) for wheat or potato starch |
| Not more than 0,4 % (as P) for other starches |
| Sulphur dioxide |
Not more than 50 mg/kg for modified cereal starches |
| Not more than 10 mg/kg for other modified starches, unless otherwise specified |
| Arsenic |
Not more than 1 mg/kg |
| Lead |
Not more than 2 mg/kg |
| Mercury |
Not more than 0,1 mg/kg |
| A. |
If not pregelatinised: by microscopic observation |
| B. |
Iodine staining positive (dark blue to light red colour) |
| Definition |
Distarch phosphate is starch cross-linked with sodium trimetaphosphate or phosphorus oxychloride |
| Description |
White or nearly white powder or granules or (if pregelatinised) flakes, amorphous powder or coarse particles |
| Identification |
|
| A.If not pregelatinised: by microscopic observation |
A. |
If not pregelatinised: by microscopic observation |
|
| A. |
If not pregelatinised: by microscopic observation |
| B.Iodine staining positive (dark blue to light red colour) |
B. |
Iodine staining positive (dark blue to light red colour) |
|
| B. |
Iodine staining positive (dark blue to light red colour) |
| Purity(all values expressed on an anhydrous basis except for loss on drying) |
|
| Loss on drying |
Not more than 15,0 % for cereal starch |
| Not more than 21,0 % for potato starch |
| Not more than 18,0 % for other starches |
| Residual phosphate |
Not more than 0,5 % (as P) for wheat or potato starch |
| Not more than 0,4 % (as P) for other starches |
| Sulphur dioxide |
Not more than 50 mg/kg for modified cereal starches |
| Not more than 10 mg/kg for other modified starches, unless otherwise specified |
| Arsenic |
Not more than 1 mg/kg |
| Lead |
Not more than 2 mg/kg |
| Mercury |
Not more than 0,1 mg/kg |
| A. |
If not pregelatinised: by microscopic observation |
| B. |
Iodine staining positive (dark blue to light red colour) |
| Definition |
Phosphated distarch phosphate is starch having undergone a combination of treatments as described for monostarch phosphate and for distarch phosphate |
| Description |
White or nearly white powder or granules or (if pregelatinised) flakes, amorphous powder or coarse particles |
| Identification |
|
| A.If not pregelatinised: by microscopic observation |
A. |
If not pregelatinised: by microscopic observation |
|
| A. |
If not pregelatinised: by microscopic observation |
| B.Iodine staining positive (dark blue to light red colour) |
B. |
Iodine staining positive (dark blue to light red colour) |
|
| B. |
Iodine staining positive (dark blue to light red colour) |
| Purity(all values expressed on an anhydrous basis except for loss on drying) |
|
| Loss on drying |
Not more than 15,0 % for cereal starch |
| Not more than 21,0 % for potato starch |
| Not more than 18,0 % for other starches |
| Residual phosphate |
Not more than 0,5 % (as P) for wheat or potato starch |
| Not more than 0,4 % (as P) for other starches |
| Sulphur dioxide |
Not more than 50 mg/kg for modified cereal starches |
| Not more than 10 mg/kg for other modified starches, unless otherwise specified |
| Arsenic |
Not more than 1 mg/kg |
| Lead |
Not more than 2 mg/kg |
| Mercury |
Not more than 0,1 mg/kg |
| A. |
If not pregelatinised: by microscopic observation |
| B. |
Iodine staining positive (dark blue to light red colour) |
| Definition |
Acetylated distarch phosphate is starch cross-linked with sodium trimetaphosphate or phosphorus oxychloride and esterified by acetic anhydride or vinyl acetate |
| Description |
White or nearly white powder or granules or (if pregelatinised) flakes, amorphous powder or coarse particles |
| Identification |
|
| A.If not pregelatinised: by microscopic observation |
A. |
If not pregelatinised: by microscopic observation |
|
| A. |
If not pregelatinised: by microscopic observation |
| B.Iodine staining positive (dark blue to light red colour) |
B. |
Iodine staining positive (dark blue to light red colour) |
|
| B. |
Iodine staining positive (dark blue to light red colour) |
| Purity(all values expressed on an anhydrous basis except for loss on drying) |
|
| Loss on drying |
Not more than 15,0 % for cereal starch |
| Not more than 21,0 % for potato starch |
| Not more than 18,0 % for other starches |
| Acetyl groups |
Not more than 2,5 % |
| Residual phosphate |
Not more than 0,14 % (as P) for wheat or potato starch |
| Not more than 0,04 % (as P) for other starches |
| Vinyl acetate |
Not more than 0,1 mg/kg |
| Sulphur dioxide |
Not more than 50 mg/kg for modified cereal starches |
| Not more than 10 mg/kg for other modified starches, unless otherwise specified |
| Arsenic |
Not more than 1 mg/kg |
| Lead |
Not more than 2 mg/kg |
| Mercury |
Not more than 0,1 mg/kg |
| A. |
If not pregelatinised: by microscopic observation |
| B. |
Iodine staining positive (dark blue to light red colour) |
| Synonyms |
Starch acetate |
| Definition |
Acetylated starch is starch esterified with acetic anhydride or vinyl acetate |
| Description |
White or nearly white powder or granules or (if pregelatinised) flakes, amorphous powder or coarse particles |
| Identification |
|
| A.If not pregelatinised: by microscopic observation |
A. |
If not pregelatinised: by microscopic observation |
|
| A. |
If not pregelatinised: by microscopic observation |
| B.Iodine staining positive (dark blue to light red colour) |
B. |
Iodine staining positive (dark blue to light red colour) |
|
| B. |
Iodine staining positive (dark blue to light red colour) |
| Purity(all values expressed on an anhydrous basis except for loss on drying) |
|
| Loss on drying |
Not more than 15,0 % for cereal starch |
| Not more than 21,0 % for potato starch |
| Not more than 18,0 % for other starches |
| Acetyl groups |
Not more than 2,5 % |
| Vinyl acetate |
Not more than 0,1 mg/kg |
| Sulphur dioxide |
Not more than 50 mg/kg for modified cereal starches |
| Not more than 10 mg/kg for other modified starches, unless otherwise specified |
| Arsenic |
Not more than 1 mg/kg |
| Lead |
Not more than 2 mg/kg |
| Mercury |
Not more than 0,1 mg/kg |
| A. |
If not pregelatinised: by microscopic observation |
| B. |
Iodine staining positive (dark blue to light red colour) |
| Definition |
Acetylated distarch adipate is starch cross-linked with adipic anhydride and esterified with acetic anhydride |
| Description |
White or nearly white powder or granules or (if pregelatinised) flakes, amorphous powder or coarse particles |
| Identification |
|
| A.If not pregelatinised: by microscopic observation |
A. |
If not pregelatinised: by microscopic observation |
|
| A. |
If not pregelatinised: by microscopic observation |
| B.Iodine staining positive (dark blue to light red colour) |
B. |
Iodine staining positive (dark blue to light red colour) |
|
| B. |
Iodine staining positive (dark blue to light red colour) |
| Purity(all values expressed on an anhydrous basis except for loss on drying) |
|
| Loss on drying |
Not more than 15,0 % for cereal starch |
| Not more than 21,0 % for potato starch |
| Not more than 18,0 % for other starches |
| Acetyl groups |
Not more than 2,5 % |
| Adipate groups |
Not more than 0,135 % |
| Sulphur dioxide |
Not more than 50 mg/kg for modified cereal starches |
| Not more than 10 mg/kg for other modified starches, unless otherwise specified |
| Arsenic |
Not more than 1 mg/kg |
| Lead |
Not more than 2 mg/kg |
| Mercury |
Not more than 0,1 mg/kg |
| A. |
If not pregelatinised: by microscopic observation |
| B. |
Iodine staining positive (dark blue to light red colour) |
| Definition |
Hydroxypropyl starch is starch etherified with propylene oxide |
| Description |
White or nearly white powder or granules or (if pregelatinised) flakes, amorphous powder or coarse particles |
| Identification |
|
| A.If not pregelatinised: by microscopic observation |
A. |
If not pregelatinised: by microscopic observation |
|
| A. |
If not pregelatinised: by microscopic observation |
| B.Iodine staining positive (dark blue to light red colour) |
B. |
Iodine staining positive (dark blue to light red colour) |
|
| B. |
Iodine staining positive (dark blue to light red colour) |
| Purity(all values expressed on an anhydrous basis except for loss on drying) |
|
| Loss on drying |
Not more than 15,0 % for cereal starch |
| Not more than 21,0 % for potato starch |
| Not more than 18,0 % for other starches |
| Hydroxypropyl groups |
Not more than 7,0 % |
| Propylene chlorohydrin |
Not more than 1 mg/kg |
| Sulphur dioxide |
Not more than 50 mg/kg for modified cereal starches |
| Not more than 10 mg/kg for other modified starches, unless otherwise specified |
| Arsenic |
Not more than 1 mg/kg |
| Lead |
Not more than 2 mg/kg |
| Mercury |
Not more than 0,1 mg/kg |
| A. |
If not pregelatinised: by microscopic observation |
| B. |
Iodine staining positive (dark blue to light red colour) |
| Definition |
Hydroxypropyl distarch phosphate is starch cross-linked with sodium trimetaphosphate or phosphorus oxychloride and etherified with propylene oxide |
| Description |
White or nearly white powder or granules or (if pregelatinised) flakes, amorphous powder or coarse particles |
| Identification |
|
| A.If not pregelatinised: by microscopic observation |
A. |
If not pregelatinised: by microscopic observation |
|
| A. |
If not pregelatinised: by microscopic observation |
| B.Iodine staining positive (dark blue to light red colour) |
B. |
Iodine staining positive (dark blue to light red colour) |
|
| B. |
Iodine staining positive (dark blue to light red colour) |
| Purity(all values expressed on an anhydrous basis except for loss on drying) |
|
| Loss on drying |
Not more than 15,0 % for cereal starch |
| Not more than 21,0 % for potato starch |
| Not more than 18,0 % for other starches |
| Hydroxypropyl groups |
Not more than 7,0 % |
| Residual phosphate |
Not more than 0,14 % (as P) for wheat or potato starch |
| Not more than 0,04 (as P) for other starches |
| Propylene chlorohydrin |
Not more than 1 mg/kg |
| Sulphur dioxide |
Not more than 50 mg/kg for modified cereal starches |
| Not more than 10 mg/kg for other modified starches, unless otherwise specified |
| Arsenic |
Not more than 1 mg/kg |
| Lead |
Not more than 2 mg/kg |
| Mercury |
Not more than 0,1 mg/kg |
| A. |
If not pregelatinised: by microscopic observation |
| B. |
Iodine staining positive (dark blue to light red colour) |
| Synonyms |
SSOS |
| Definition |
Starch sodium octenyl succinate is starch esterified with octenylsuccinic anhydride |
| Description |
White or nearly white powder or granules or (if pregelatinised) flakes, amorphous powder or coarse particles |
| Identification |
|
| A.If not pregelatinised: by microscopic observation |
A. |
If not pregelatinised: by microscopic observation |
|
| A. |
If not pregelatinised: by microscopic observation |
| B.Iodine staining positive (dark blue to light red colour) |
B. |
Iodine staining positive (dark blue to light red colour) |
|
| B. |
Iodine staining positive (dark blue to light red colour) |
| Purity(all values expressed on an anhydrous basis except for loss on drying) |
|
| Loss on drying |
Not more than 15,0 % for cereal starch |
| Not more than 21,0 % for potato starch |
| Not more than 18,0 % for other starches |
| Octenylsuccinyl groups |
Not more than 3 % |
| Octenylsuccinic acid residue |
Not more than 0,3 % |
| Sulphur dioxide |
Not more than 50 mg/kg for modified cereal starches |
| Not more than 10 mg/kg for other modified starches, unless otherwise specified |
| Arsenic |
Not more than 1 mg/kg |
| Lead |
Not more than 2 mg/kg |
| Mercury |
Not more than 0,1 mg/kg |
| A. |
If not pregelatinised: by microscopic observation |
| B. |
Iodine staining positive (dark blue to light red colour) |
| Definition |
Acetylated oxidised starch is starch treated with sodium hypochlorite followed by esterification with acetic anhydride |
| Description |
White or nearly white powder or granules or (if pregelatinised) flakes, amorphous powder or coarse particles |
| Identification |
|
| A.If not pregelatinised: by microscopic observation |
A. |
If not pregelatinised: by microscopic observation |
|
| A. |
If not pregelatinised: by microscopic observation |
| B.Iodine staining positive (dark blue to light red colour) |
B. |
Iodine staining positive (dark blue to light red colour) |
|
| B. |
Iodine staining positive (dark blue to light red colour) |
| Purity(all values expressed on an anhydrous basis except for loss on drying) |
|
| Loss on drying |
Not more than 15,0 % for cereal starch |
| Not more than 21,0 % for potato starch |
| Not more than 18,0 % for other starches |
| Carboxyl groups |
Not more than 1,3 % |
| Acetyl groups |
Not more than 2,5 % |
| Sulphur dioxide |
Not more than 50 mg/kg for modified cereal starches |
| Not more than 10 mg/kg for other modified starches, unless otherwise specified |
| Arsenic |
Not more than 1 mg/kg |
| Lead |
Not more than 2 mg/kg |
| Mercury |
Not more than 0,1 mg/kg |
| A. |
If not pregelatinised: by microscopic observation |
| B. |
Iodine staining positive (dark blue to light red colour) |
| Synonyms |
SAOS |
| Definition |
Starch aluminium octenyl succinate is starch esterified with octenylsuccinic anhydride and treated with aluminium sulphate |
| Description |
White or nearly white powder or granules or (if pregelatinised) flakes, amorphous powder or coarse particles |
| Identification |
|
| A.If not pregelatinised: by microscopic observation |
A. |
If not pregelatinised: by microscopic observation |
|
| A. |
If not pregelatinised: by microscopic observation |
| B.Iodine staining positive (dark blue to light red colour) |
B. |
Iodine staining positive (dark blue to light red colour) |
|
| B. |
Iodine staining positive (dark blue to light red colour) |
| Purity(all values expressed on an anhydrous basis except for loss on drying) |
|
| Loss on drying |
Not more than 21,0 % |
| Octenylsuccinyl groups |
Not more than 3 % |
| Octenylsuccinic acid residue |
Not more than 0,3 % |
| Sulphur dioxide |
Not more than 50 mg/kg for modified cereal starches |
| Not more than 10 mg/kg for the other modified starches, unless otherwise specified |
| Arsenic |
Not more than 1 mg/kg |
| Lead |
Not more than 2 mg/kg |
| Mercury |
Not more than 0,1 mg/kg |
| Aluminium |
Not more than 0,3 % |
| A. |
If not pregelatinised: by microscopic observation |
| B. |
Iodine staining positive (dark blue to light red colour) |
| Synonyms |
Ethyl citrate |
| Definition |
|
| Chemical name |
Triethyl-2-hydroxypropan-1,2,3-tricarboxylate |
| Einecs |
201-070-7 |
| Chemical formula |
C12H20O7 |
| Molecular weight |
276,29 |
| Assay |
Content not less than 99,0 % |
| Description |
Odourless, practically colourless, oily liquid |
| Identification |
|
| A.Specific gravity |
A. |
Specific gravity |
d2525: 1,135 -1,139 |
| A. |
Specific gravity |
| B.Refractive index |
B. |
Refractive index |
[n]D20: 1,439 -1,441 |
| B. |
Refractive index |
| Purity |
|
| Water |
Not more than 0,25 % (Karl Fischer method) |
| Acidity |
Not more than 0,02 % (as citric acid) |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Synonyms |
Diacetin |
| Definition |
Glyceryl diacetate consist predominantly of a mixture of the 1,2 – and 1,3 -diacetates of glycerol, with minor amounts of the mono- and tri-esters |
| Chemical names |
Glyceryl diacetate |
| 1, 2, 3-propanetriol diacetate |
| Chemical formula |
C7H12O5 |
| Molecular weight |
176,17 |
| Assay |
Not less than 94,0 % |
| Description |
Clear, colourless, hygroscopic, somewhat oily liquid with a slight, fatty odour |
| Identification |
|
| A.Solubility |
A. |
Solubility |
Soluble in water. Miscible with ethanol |
| A. |
Solubility |
| B.Positive tests for glycerol and acetate |
B. |
Positive tests for glycerol and acetate |
|
| B. |
Positive tests for glycerol and acetate |
| C.Specific gravity |
C. |
Specific gravity |
d2020: 1,175 -1,195 |
| C. |
Specific gravity |
| D.Boiling range |
D. |
Boiling range |
Between 259 and 261oC |
| D. |
Boiling range |
| Purity |
|
| Total ash |
Not more than 0,02 % |
| Acidity |
Not more than 0,4 % (as ascetic acid) |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| B. |
Positive tests for glycerol and acetate |
| Synonyms |
Triacetin |
| Definition |
|
| Chemical name |
Glyceryl triacetate |
| Einecs |
203-051-9 |
| Chemical formula |
C9H14O6 |
| Molecular weight |
218,21 |
| Assay |
Content not less than 98,0 % |
| Description |
Colourless, somewhat oily liquid having a slightly fatty odour |
| Identification |
|
| A.Positive tests for acetate and for glycerol |
A. |
Positive tests for acetate and for glycerol |
|
| A. |
Positive tests for acetate and for glycerol |
| B.Refractive index |
B. |
Refractive index |
Between 1,429 and 1,431 at 25oC |
| B. |
Refractive index |
| C.Specific gravity (25oC/25oC) |
C. |
Specific gravity (25oC/25oC) |
Between 1,154 and 1,158 |
| C. |
Specific gravity (25oC/25oC) |
| D.Boiling range |
D. |
Boiling range |
Between 258 and 270oC |
| D. |
Boiling range |
| Purity |
|
| Water |
Not more than 0,2 % (Karl Fischer method) |
| Sulphated ash |
Not more than 0,02 % (as citric acid) |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| A. |
Positive tests for acetate and for glycerol |
| C. |
Specific gravity (25oC/25oC) |
| Synonyms |
Phenylcarbinol |
| Phenylmethyl alcohol |
| Benzenemethanol |
| Alpha-hydroxytoluene |
| Definition |
|
| Chemical names |
Benzyl alcohol |
| Phenylmethanol |
| Chemical formula |
C7H8O |
| Molecular weight |
108,14 |
| Assay |
Not less than 98,0 % |
| Description |
Colourless, clear liquid with a faint, aromatic odour |
| Identification |
|
| A.Solubility |
A. |
Solubility |
Soluble in water, ethanol and ether |
| A. |
Solubility |
| B.Refractive index |
B. |
Refractive index |
[n]D20: 1,538 -1,541 |
| B. |
Refractive index |
| C.Specific gravity |
C. |
Specific gravity |
d2525: 1,042 -1,047 |
| C. |
Specific gravity |
| D.Positive test for peroxides |
D. |
Positive test for peroxides |
|
| D. |
Positive test for peroxides |
| Purity |
|
| Distillation range |
Not less than 95 % v/v distils between 202 and 208oC |
| Acid value |
Not more than 0,5 |
| Aldehydes |
Not more than 0,2 % v/v (as bezaldehyde) |
| Lead |
Not more than 5 mg/kg |
| D. |
Positive test for peroxides |
| Synonyms |
Propylene glycol |
| Definition |
|
| Chemical names |
1,2-dihydroxypropane |
| Einecs |
200-338-0 |
| Chemical formula |
C3H8O2 |
| Molecular weight |
76,10 |
| Assay |
Content not less than 99,5 % on the anhydrous basis |
| Description |
Clear, colourless, hygroscopic, viscous liquid |
| Identification |
|
| A.Solubility |
A. |
Solubility |
Soluble in water, ethanol and acetone |
| A. |
Solubility |
| B.Specific gravity |
B. |
Specific gravity |
d2020: 1,035 -1,040 |
| B. |
Specific gravity |
| C.Refractive index |
C. |
Refractive index |
[n]20D: 1,431 -1,433 |
| C. |
Refractive index |
| Purity |
|
| Distillation range |
99 % v/v distils between 185oC-189oC |
| Sulphated ash |
Not more than 0,07 % |
| Water |
Not more than 1,0 % (Karl Fischer method) |
| Lead |
Not more than 5 mg/kg |
| Synonyms |
PEG 6000 |
| Macrogol 6000 |
| Definition |
Polyethylene glycol 6000 is a mixture of polymers with the general formula H-(OCH2-CH)-OH corresponding to an average relative molecular mass of approximately 6 000 |
| Chemical formula |
(C2H4O)nH2O (n = number of ethylene oxide units corresponding to a molecular weight of 6 000 , about 140) |
| Molecular weight |
5 600 -7 000 |
| Assay |
Not less than 90,0 % and not more than 110,0 % |
| Description |
A white or almost white solid with a waxy or paraffin-like appearance |
| Identification |
|
| A.Solubility |
A. |
Solubility |
Very soluble in water and in methylene chloride. Practically insoluble in alcohol, in ether and in fatty and mineral oils |
| A. |
Solubility |
| B.Melting range |
B. |
Melting range |
Between 55oC and 61oC |
| B. |
Melting range |
| Purity |
|
| Viscosity |
Between 0,220 and 0,275 kgm-1s-1at 20oC |
| Hydroxyl value |
Between 16 and 22 |
| Sulphated ash |
Not more than 0,2 % |
| Ethylene oxide |
Not more than 0,2 mg/kg |
| Arsenic |
Not more than 3 mg/kg |
| Lead |
Not more than 5 mg/kg |
| Commission Directive 96/77/ECCommission Directive 98/86/ECCommission Directive 2000/63/ECCommission Directive 2001/30/ECCommission Directive 2002/82/ECCommission Directive 2003/95/ECCommission Directive 2004/45/ECCommission Directive 2006/129/EC |
|
Commission Directive 98/86/EC |
|
Commission Directive 2000/63/EC |
|
Commission Directive 2001/30/EC |
|
Commission Directive 2002/82/EC |
|
Commission Directive 2003/95/EC |
|
Commission Directive 2004/45/EC |
|
Commission Directive 2006/129/EC |
(OJ L 339, 30.12.1996, p. 1)(OJ L 334, 9.12.1998, p. 1)(OJ L 277, 30.10.2000, p. 1)(OJ L 146, 31.5.2001, p. 1)(OJ L 292, 28.10.2002, p. 1)(OJ L 283, 31.10.2003, p. 71)(OJ L 113, 20.4.2004, p. 19)(OJ L 346, 9.12.2006, p. 15) |
|
(OJ L 334, 9.12.1998, p. 1) |
|
(OJ L 277, 30.10.2000, p. 1) |
|
(OJ L 146, 31.5.2001, p. 1) |
|
(OJ L 292, 28.10.2002, p. 1) |
|
(OJ L 283, 31.10.2003, p. 71) |
|
(OJ L 113, 20.4.2004, p. 19) |
|
(OJ L 346, 9.12.2006, p. 15) |
|
Commission Directive 98/86/EC |
|
Commission Directive 2000/63/EC |
|
Commission Directive 2001/30/EC |
|
Commission Directive 2002/82/EC |
|
Commission Directive 2003/95/EC |
|
Commission Directive 2004/45/EC |
|
Commission Directive 2006/129/EC |
|
(OJ L 334, 9.12.1998, p. 1) |
|
(OJ L 277, 30.10.2000, p. 1) |
|
(OJ L 146, 31.5.2001, p. 1) |
|
(OJ L 292, 28.10.2002, p. 1) |
|
(OJ L 283, 31.10.2003, p. 71) |
|
(OJ L 113, 20.4.2004, p. 19) |
|
(OJ L 346, 9.12.2006, p. 15) |
|
Commission Directive 98/86/EC |
|
Commission Directive 2000/63/EC |
|
Commission Directive 2001/30/EC |
|
Commission Directive 2002/82/EC |
|
Commission Directive 2003/95/EC |
|
Commission Directive 2004/45/EC |
|
Commission Directive 2006/129/EC |
|
(OJ L 334, 9.12.1998, p. 1) |
|
(OJ L 277, 30.10.2000, p. 1) |
|
(OJ L 146, 31.5.2001, p. 1) |
|
(OJ L 292, 28.10.2002, p. 1) |
|
(OJ L 283, 31.10.2003, p. 71) |
|
(OJ L 113, 20.4.2004, p. 19) |
|
(OJ L 346, 9.12.2006, p. 15) |
| Directive |
Time-limit for transposition |
| 96/77/EC |
1 July 1997(1) |
| 98/86/EC |
1 July 1999(2) |
| 2000/63/EC |
31 March 2001(3) |
| 2001/30/EC |
1 June 2002(4) |
| 2002/82/EC |
31 August 2003 |
| 2003/95/EC |
1 November 2004(5) |
| 2004/45/EC |
1 April 2005(6) |
| 2006/129/EC |
15 February 2008 |
| Directive 96/77/EC |
This Directive |
| Article 1 |
Article 1 |
| Article 2 |
— |
| Article 3 |
— |
| — |
Article 2 |
| Article 4 |
Article 3 |
| Article 5 |
Article 4 |
| Annex |
Annex I |
| — |
Annex II |
| — |
Annex III |
THE COMMISSION OF THE EUROPEAN COMMUNITIES,
Having regard to the Treaty establishing the European Community,
Having regard to Council Directive 89/107/EEC of 21 December 1988 on the approximation of the laws of the Member States concerning food additives authorised for use in foodstuffs intended for human consumption(1), and in particular Article 3(3)(a) thereof,
(1) Commission Directive 96/77/EC of 2 December 1996 laying down specific purity criteria on food additives other than colours and sweeteners(2)has been substantially amended several times(3). In the interests of clarity and rationality the said Directive should be codified.
(2) It is necessary to establish purity criteria for all additives other than colours and sweeteners mentioned in European Parliament and Council Directive 95/2/EC of 20 February 1995 on food additives other than colours and sweeteners(4).
(3) It is necessary to take into account the specifications and analytical techniques for additives as set out in theCodex Alimentariusas drafted by the Joint FAO/WHO Expert Committee on Food Additives (JECFA).
(4) Food additives prepared by production methods or starting materials significantly different from those evaluated by the Scientific Committee for Food or different from those mentioned in this Directive should be submitted for safety evaluation by the European Food Safety Authority with emphasis on the purity criteria.
(5) The measures provided for in this Directive are in accordance with the opinion of the Standing Committee on the Food Chain and Animal Health.
(6) This Directive should be without prejudice to the obligations of the Member States relating to the time-limits for transposition into national law of the Directives set out in Annex II, part B,
HAS ADOPTED THIS DIRECTIVE:
Article 1
The purity criteria referred to in Article 3(3)(a) of Directive 89/107/EEC for food additives other than colours and sweeteners, as mentioned in Directive 95/2/EC, are set out in Annex I to this Directive.
Article 2
Directive 96/77/EC, as amended by the Directives listed in Annex II, part A, is repealed, without prejudice to the obligations of the Member States relating to the time-limits for transposition into national law set out in Annex II, part B.
References to the repealed Directive shall be construed as references to this Directive and shall be read in accordance with the correlation table in Annex III.
Article 3
This Directive shall enter into force on the 20th day following its publication in theOfficial Journal of the European Union.
Article 4
This Directive is addressed to the Member States.
THE COMMISSION OF THE EUROPEAN COMMUNITIES,
Having regard to the Treaty establishing the European Community,
Having regard to Council Directive 89/107/EEC of 21 December 1988 on the approximation of the laws of the Member States concerning food additives authorised for use in foodstuffs intended for human consumption(1), and in particular Article 3(3)(a) thereof,
(1) Commission Directive 96/77/EC of 2 December 1996 laying down specific purity criteria on food additives other than colours and sweeteners(2)has been substantially amended several times(3). In the interests of clarity and rationality the said Directive should be codified.
(2) It is necessary to establish purity criteria for all additives other than colours and sweeteners mentioned in European Parliament and Council Directive 95/2/EC of 20 February 1995 on food additives other than colours and sweeteners(4).
(3) It is necessary to take into account the specifications and analytical techniques for additives as set out in theCodex Alimentariusas drafted by the Joint FAO/WHO Expert Committee on Food Additives (JECFA).
(4) Food additives prepared by production methods or starting materials significantly different from those evaluated by the Scientific Committee for Food or different from those mentioned in this Directive should be submitted for safety evaluation by the European Food Safety Authority with emphasis on the purity criteria.
(5) The measures provided for in this Directive are in accordance with the opinion of the Standing Committee on the Food Chain and Animal Health.
(6) This Directive should be without prejudice to the obligations of the Member States relating to the time-limits for transposition into national law of the Directives set out in Annex II, part B,
HAS ADOPTED THIS DIRECTIVE:
The purity criteria referred to in Article 3(3)(a) of Directive 89/107/EEC for food additives other than colours and sweeteners, as mentioned in Directive 95/2/EC, are set out in Annex I to this Directive.
Directive 96/77/EC, as amended by the Directives listed in Annex II, part A, is repealed, without prejudice to the obligations of the Member States relating to the time-limits for transposition into national law set out in Annex II, part B.
References to the repealed Directive shall be construed as references to this Directive and shall be read in accordance with the correlation table in Annex III.
This Directive shall enter into force on the 20th day following its publication in theOfficial Journal of the European Union.
This Directive is addressed to the Member States.
E 170 (i) CALCIUM CARBONATE
ANNEX IEthylene oxide may not be used for sterilising purposes in food additives.
Purity criteria for this additive are the same as set out for this additive in the Annex to Commission Directive 95/45/EC(1).
E 200 SORBIC ACID
Definition |
Chemical name | Sorbic acid
Trans, trans-2,4-hexadienoic acid
Einecs | 203-768-7
Chemical formula | C6H8O2
Molecular weight | 112,12
Assay | Content not less than 99 % on the anhydrous basis
Description | Colourless needles or white free flowing powder, having a slight characteristic odour and showing no change in colour after heating for 90 minutes at 105oC
Identification |
A.Melting range | A. | Melting range | Between 133oC and 135oC, after vacuum drying for four hours in a sulphuric acid desiccator
A. | Melting range
B.Spectrometry | B. | Spectrometry | An isopropanol solution (1 in 4 000 000 ) shows absorbance maximum at 254 ± 2 nm
B. | Spectrometry
C.Positive test for double bonds | C. | Positive test for double bonds |
C. | Positive test for double bonds
D.Sublimation point | D. | Sublimation point | 80oC
D. | Sublimation point
Purity |
Water content | Not more than 0,5 % (Karl Fischer method)
Sulphated ash | Not more than 0,2 %
Aldehydes | Not more than 0,1 % (as formaldehyde)
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kg
Heavy metals (as Pb) | Not more than 10 mg/kgE 202 POTASSIUM SORBATE
Definition |
Chemical name | Potassium sorbate
Potassium (E, E)-2,4-hexadienoate
Potassium salt of trans, trans 2,4-hexadienoic acid
Einecs | 246-376-1
Chemical formula | C6H7O2K
Molecular weight | 150,22
Assay | Content not less than 99 % on the dried basis
Description | White crystalline powder showing no change in colour after heating for 90 minutes at 105oC
Identification |
A.Melting range of sorbic acid isolated by acidification and not recrystallised 133oC to 135oC after vacuum drying in a sulphuric acid desiccator | A. | Melting range of sorbic acid isolated by acidification and not recrystallised 133oC to 135oC after vacuum drying in a sulphuric acid desiccator |
A. | Melting range of sorbic acid isolated by acidification and not recrystallised 133oC to 135oC after vacuum drying in a sulphuric acid desiccator
B.Positive tests for potassium and for double bonds | B. | Positive tests for potassium and for double bonds |
B. | Positive tests for potassium and for double bonds
Purity |
Loss on drying | Not more than 1,0 % (105oC, 3h)
Acidity or alkalinity | Not more than about 1,0 % (as sorbic acid or K2CO3)
Aldehydes | Not more than 0,1 %, calculated as formaldehyde
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kg
Heavy metals (as Pb) | Not more than 10 mg/kgE 203 CALCIUM SORBATE
Definition |
Chemical name | Calcium sorbate
Calcium salts of trans, trans-2,4-hexadienoic acid
Einecs | 231-321-6
Chemical formula | C12H14O4Ca
Molecular weight | 262,32
Assay | Content not less than 98 % on the dried basis
Description | Fine white crystalline powder not showing any change in colour after heating at 105oC for 90 minutes
Identification |
A.Melting range of sorbic acid isolated by acidification and not recrystallised 133oC to 135oC after vacuum drying in a sulphuric acid desiccator | A. | Melting range of sorbic acid isolated by acidification and not recrystallised 133oC to 135oC after vacuum drying in a sulphuric acid desiccator |
A. | Melting range of sorbic acid isolated by acidification and not recrystallised 133oC to 135oC after vacuum drying in a sulphuric acid desiccator
B.Positive tests for calcium and for double bonds | B. | Positive tests for calcium and for double bonds |
B. | Positive tests for calcium and for double bonds
Purity |
Loss on drying | Not more than 2,0 %, determined by vacuum drying for four hours in a sulphuric acid desiccator
Aldehydes | Not more than 0,1 % (as formaldehyde)
Fluoride | Not more than 10 mg/kg
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kg
Heavy metals (as Pb) | Not more than 10 mg/kgE 210 BENZOIC ACID
Definition |
Chemical name | Benzoic acid
Benzenecarboxylic acid
Phenylcarboxylic acid
Einecs | 200-618-2
Chemical formula | C7H6O2
Molecular weight | 122,12
Assay | Content not less than 99,5 % on the anhydrous basis
Description | White crystalline powder
Identification |
A.Melting range | A. | Melting range | 121,5oC to 123,5oC
A. | Melting range
B.Positive sublimation test and test for benzoate | B. | Positive sublimation test and test for benzoate |
B. | Positive sublimation test and test for benzoate
Purity |
Loss on drying | Not more than 0,5 % after drying for three hours over sulphuric acid
pH | About 4 (solution in water)
Sulphated ash | Not more than 0,05 %
Chlorinated organic compounds | Not more than 0,07 % expressed as chloride corresponding to 0,3 % expressed as monochlorobenzoic acid
Readily oxidisable substances | Add 1,5 ml of sulphuric acid to 100 ml of water, heat to boiling point and add 0,1 N KMnO4in drops, until the pink colour persists for 30 seconds. Dissolve 1 g of the sample, weighed to the nearest mg, in the heated solution, and titrate with 0,1 N KMnO4to a pink colour that persists for 15 seconds. Not more than 0,5 ml should be required
Readily carbonisable substances | A cold solution of 0,5 g of benzoic acid in 5 ml of 94,5 to 95,5 % sulphuric acid must not show a stronger colouring than that of a reference liquid containing 0,2 ml of cobalt chloride TSC(2), 0,3 ml of ferric chloride TSC(3), 0,1 ml of copper sulphate TSC(4)and 4,4 ml of water
Polycyclic acids | On fractional acidification of a neutralised solution of benzoic acid, the first precipitate must not have a different melting point from that of the benzoic acid
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kg
Heavy metals (as Pb) | Not more than 10 mg/kg
E 211 SODIUM BENZOATE
Definition |
Chemical name | Sodium benzoate
Sodium salt of benzenecarboxylic acid
Sodium salt of phenylcarboxylic acid
Einecs | 208-534-8
Chemical formula | C7H5O2Na
Molecular weight | 144,11
Assay | Not less than 99 % of C7H5O2Na, after drying at 105oC for four hours
Description | A white, almost odourless, crystalline powder or granules
Identification |
A.Solubility | A. | Solubility | Freely soluble in water, sparingly soluble in ethanol
A. | Solubility
B.Melting range for benzoic acid | B. | Melting range for benzoic acid | Melting range of benzoic acid isolated by acidification and not recrystallised 121,5oC to 123,5oC, after drying in a sulphuric acid desiccator
B. | Melting range for benzoic acid
C.Positive tests for benzoate and for sodium | C. | Positive tests for benzoate and for sodium |
C. | Positive tests for benzoate and for sodium
Purity |
Loss on drying | Not more than 1,5 % after drying at 105oC for four hours
Readily oxidisable substances | Add 1,5 ml of sulphuric acid to 100 ml of water, heat to boiling point and add 0,1 N KMnO4in drops, until the pink colour persists for 30 seconds. Dissolve 1 g of the sample, weighed to the nearest mg, in the heated solution, and titrate with 0,1 N KMnO4to a pink colour that persists for 15 seconds. Not more than 0,5 ml should be required
Polycyclic acids | On fractional acidification of a (neutralised) solution of sodium benzoate, the first precipitate must not have a different melting range from that of benzoic acid
Chlorinated organic compounds | Not more than 0,06 % expressed as chloride, corresponding to 0,25 % expressed as monochlorobenzoic acid
Degree of acidity or alkalinity | Neutralisation of 1 g of sodium benzoate, in the presence of phenolphthalein, must not require more than 0,25 ml of 0,1 N NaOH or 0,1 N HCl
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kg
Heavy metals (as Pb) | Not more than 10 mg/kgE 212 POTASSIUM BENZOATE
Definition |
Chemical name | Potassium benzoate
Potassium salt of benzenecarboxylic acid
Potassium salt of phenylcarboxylic acid
Einecs | 209-481-3
Chemical formula | C7H5KO2·3H2O
Molecular weight | 214,27
Assay | Content not less than 99 % C7H5KO2after drying at 105oC to constant weight
Description | White crystalline powder
Identification |
A.Melting range of benzoic acid isolated by acidification and not recrystallised 121,5oC to 123,5oC, after vacuum drying in a sulphuric acid desiccator | A. | Melting range of benzoic acid isolated by acidification and not recrystallised 121,5oC to 123,5oC, after vacuum drying in a sulphuric acid desiccator |
A. | Melting range of benzoic acid isolated by acidification and not recrystallised 121,5oC to 123,5oC, after vacuum drying in a sulphuric acid desiccator
B.Positive tests for benzoate and for potassium | B. | Positive tests for benzoate and for potassium |
B. | Positive tests for benzoate and for potassium
Purity |
Loss on drying | Not more than 26,5 %, determined by drying at 105oC
Chlorinated organic compounds | Not more than 0,06 % expressed as chloride, corresponding to 0,25 % expressed as monochlorobenzoic acid
Readily oxidisable substances | Add 1,5 ml of sulphuric acid to 100 ml of water, heat to boiling point and add 0,1 N KMnO4in drops, until the pink colour persists for 30 seconds. Dissolve 1 g of the sample, weighed to the nearest mg, in the heated solution, and titrate with 0,1 N KMnO4to a pink colour that persists for 15 seconds. Not more than 0,5 ml should be required
Readily carbonisable substances | A cold solution of 0,5 g of benzoic acid in 5 ml 94,5 to 95,5 % sulphuric acid must not show a stronger colouring than that of a reference liquid containing 0,2 ml of cobalt chloride TSC, 0,3 ml of ferric chloride TSC, 0,1 ml of copper sulphate TSC and 4,4 ml of water
Polycyclic acids | On fractional acidification of a (neutralised) solution of potassium benzoate, the first precipitate must not have a different melting range from that of benzoic acid
Degree of acidity or alkalinity | Neutralisation of 1 g of potassium benzoate, in the presence of phenolphthalein, must not require more than 0,25 ml of 0,1 N NaOH or 0,1 N HCl
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kg
Heavy metals (as Pb) | Not more than 10 mg/kgE 213 CALCIUM BENZOATE
Synonyms | Monocalcium benzoate
Definition |
Chemical name | Calcium benzoate
Calcium dibenzoate
Einecs | 218-235-4
Chemical formula | Anhydrous: | C14H10O4Ca
Monohydrate: | C14H10O4Ca· H2O
Trihydrate: | C14H10O4Ca· 3H2O
Molecular weight | Anhydrous: | 282,31
Monohydrate: | 300,32
Trihydrate: | 336,36
Assay | Content not less than 99 % after drying at 105oC
Description | White or colourless crystals, or white powder
Identification |
A.Melting range of benzoic acid isolated by acidification and not recrystallised 121,5oC to 123,5oC, after vacuum drying in a sulphuric acid desiccator | A. | Melting range of benzoic acid isolated by acidification and not recrystallised 121,5oC to 123,5oC, after vacuum drying in a sulphuric acid desiccator |
A. | Melting range of benzoic acid isolated by acidification and not recrystallised 121,5oC to 123,5oC, after vacuum drying in a sulphuric acid desiccator
B.Positive tests for benzoate and for calcium | B. | Positive tests for benzoate and for calcium |
B. | Positive tests for benzoate and for calcium
Purity |
Loss on drying | Not more than 17,5 % determined by drying at 105oC to constant weight
Water insoluble matter | Not more than 0,3 %
Chlorinated organic compounds | Not more than 0,06 % expressed as chloride, corresponding to 0,25 % expressed as monochlorobenzoic acids
Readily oxidisable substances | Add 1,5 ml of sulphuric acid to 100 ml of water, heat to boiling point and add 0,1 N KMnO4in drops, until the pink colour persists for 30 seconds. Dissolve 1 g of the sample, weighed to the nearest mg, in the heated solution, and titrate with 0,1 N KMnO4to a pink colour that persists for 15 seconds. Not more than 0,5 ml should be required
Readily carbonisable substances | Cold solution of 0,5 g of benzoic acid in 5 ml of 94,5 to 95,5 % sulphuric acid must not show a stronger colouring than that of a reference liquid containing 0,2 ml of cobalt chloride TSC, 0,3 ml of ferric chloride TSC, 0,1 ml of copper sulphate TSC and 4,4 ml of water
Polycyclic acids | On fractional acidification of a (neutralised) solution of calcium benzoate, the first precipitate must not be a different melting range from that of benzoic acid
Degree of acidity or alkalinity | Neutralisation of 1 g of calcium benzoate, in the presence of phenolphthalein, must not require more than 0,25 ml of 0,1 N NaOH or 0,1 N HCl
Fluoride | Not more than 10 mg/kg
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kg
Heavy metals (as Pb) | Not more than 10 mg/kgE 214 ETHYL p-HYDROXYBENZOATE
Synonyms | Ethylparaben
Ethylp-oxybenzoate
Definition |
Chemical name | Ethyl-p-hydroxybenzoate
Ethyl ester ofp-hydroxybenzoic acid
Einecs | 204-399-4
Chemical formula | C9H10O3
Molecular weight | 166,8
Assay | Content not less than 99,5 % after drying for two hours at 80oC
Description | Almost odourless, small, colourless crystals or a white, crystalline powder
Identification |
A.Melting range | A. | Melting range | 115oC to 118oC
A. | Melting range
B.Positive test forp-hydroxybenzoate | B. | Positive test forp-hydroxybenzoate | Melting range ofp-hydroxybenzoic acid isolated by acidification and not recrystallised: 213oC to 217oC, after vacuum drying in a sulphuric acid desiccator
B. | Positive test forp-hydroxybenzoate
C.Positive test for alcohol | C. | Positive test for alcohol |
C. | Positive test for alcohol
Purity |
Loss on drying | Not more than 0,5 % after drying for two hours at 80oC
Sulphated ash | Not more than 0,05 %
p-Hydroxybenzoic acid and salicylic acid | Not more than 0,35 % expressed asp-hydroxybenzoic acid
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kg
Heavy metals (as Pb) | Not more than 10 mg/kgE 215 SODIUM ETHYL p-HYDROXYBENZOATE
Definition |
Chemical name | Sodium ethylp-hydroxybenzoate
Sodium compound of the ethyl ester ofp-hydroxybenzoic acid
Einecs | 252-487-6
Chemical formula | C9H9O3Na
Molecular weight | 188,8
Assay | Content of ethylester ofp-hydroxybenzoic acid not less than 83 % on the anhydrous basis
Description | White, crystalline hygroscopic powder
Identification |
A.Melting range | A. | Melting range | 115oC to 118oC, after vacuum drying in a sulphuric acid desiccator
A. | Melting range
B.Positive test forp-hydroxybenzoate | B. | Positive test forp-hydroxybenzoate | Melting range ofp-hydroxybenzoic acid derived from the sample is 213oC to 217oC
B. | Positive test forp-hydroxybenzoate
C.Positive test for sodium | C. | Positive test for sodium |
C. | Positive test for sodium
D.pH of a 0,1 % aqueous solution must be between 9,9 and 10,3 | D. | pH of a 0,1 % aqueous solution must be between 9,9 and 10,3 |
D. | pH of a 0,1 % aqueous solution must be between 9,9 and 10,3
Purity |
Loss on drying | Not more than 5 %, determined by vacuum drying in a sulphuric acid desiccator
Sulphated ash | 37 to 39 %
p-Hydroxybenzoic acid and salicylic acid | Not more than 0,35 % expressed asp-hydroxybenzoic acid
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kg
Heavy metals (as Pb) | Not more than 10 mg/kgE 218 METHYL p-HYDROXYBENZOATE
Synonyms | Methylparaben
Methyl-p-oxybenzoate
Definition |
Chemical name | Methylp-hydroxybenzoate
Methyl ester ofp-hydroxybenzoic acid
Einecs | 243-171-5
Chemical formula | C8H8O3
Molecular weight | 152,15
Assay | Content not less than 99 % after drying for two hours at 80oC
Description | Almost odourless, small colourless crystals or white crystalline powder
Identification |
A.Melting range | A. | Melting range | 125oC to 128oC
A. | Melting range
B.Positive test forp-hydroxybenzoate | B. | Positive test forp-hydroxybenzoate | Melting range ofp-hydroxybenzoic acid derived from the sample is 213oC to 217oC after drying for two hours at 80oC
B. | Positive test forp-hydroxybenzoate
Purity |
Loss on drying | Not more than 0,5 %, after drying for two hours at 80oC
Sulphated ash | Not more than 0,05 %
p-Hydroxybenzoic acid and salicylic acid | Not more than 0,35 % expressed asp-hydroxybenzoic acid
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kg
Heavy metals (as Pb) | Not more than 10 mg/kgE 219 SODIUM METHYL p-HYDROXYBENZOATE
Definition |
Chemical name | Sodium methylp-hydroxybenzoate
Sodium compound of the methylester ofp-hydroxybenzoic acid
Chemical formula | C8H7O3Na
Molecular weight | 174,15
Assay | Content not less than 99,5 % on the anhydrous basis
Description | White, hygroscopic powder
Identification |
A.The white precipitate formed by acidifying with hydrochloric acid a 10 % (w/v) aqueous solution of the sodium derivative of methylp-hydroxybenzoate (using litmus paper as indicator) shall, when washed with water and dried at 80oC for two hours, have a melting range of 125oC to 128oC | A. | The white precipitate formed by acidifying with hydrochloric acid a 10 % (w/v) aqueous solution of the sodium derivative of methylp-hydroxybenzoate (using litmus paper as indicator) shall, when washed with water and dried at 80oC for two hours, have a melting range of 125oC to 128oC |
A. | The white precipitate formed by acidifying with hydrochloric acid a 10 % (w/v) aqueous solution of the sodium derivative of methylp-hydroxybenzoate (using litmus paper as indicator) shall, when washed with water and dried at 80oC for two hours, have a melting range of 125oC to 128oC
B.Positive test for sodium | B. | Positive test for sodium |
B. | Positive test for sodium
C.pH of a 0,1 % solution in carbon dioxide free water, not less than 9,7 and not more than 10,3 | C. | pH of a 0,1 % solution in carbon dioxide free water, not less than 9,7 and not more than 10,3 |
C. | pH of a 0,1 % solution in carbon dioxide free water, not less than 9,7 and not more than 10,3
Purity |
Water content | Not more than 5 % (Karl Fischer method)
Sulphated ash | 40 % to 44,5 % on the anhydrous basis
p-Hydroxybenzoic acid and salicylic acid | Not more than 0,35 % expressed asp-hydroxybenzoic acid
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kg
Heavy metals (as Pb) | Not more than 10 mg/kgE 220 SULPHUR DIOXIDE
Definition |
Chemical name | Sulphur dioxide
Sulphurous acid anhydride
Einecs | 231-195-2
Chemical formula | SO2
Molecular weight | 64,07
Assay | Content not less than 99 %
Description | Colourless, non-flammable gas with strong pungent suffocating odour
Identification |
A.Positive test for sulphurous substances | A. | Positive test for sulphurous substances |
A. | Positive test for sulphurous substances
Purity |
Water content | Not more than 0,05 %
Non-volatile residue | Not more than 0,01 %
Sulphur trioxide | Not more than 0,1 %
Selenium | Not more than 10 mg/kg
Other gases not normally present in the air | No trace
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kg
Heavy metals (as Pb) | Not more than 10 mg/kgE 221 SODIUM SULPHITE
Definition |
Chemical name | Sodium sulphite (anhydrous or heptahydrate)
Einecs | 231-821-4
Chemical formula | Anhydrous: | Na2SO3
Heptahydrate: | Na2SO37H2O
Molecular weight | Anhydrous: | 126,04
Heptahydrate: | 252,16
Assay | Anhydrous: | Not less than 95 % of Na2SO3and not less than 48 % of SO2
Heptahydrate: | Not less than 48 % of Na2SO3and not less than 24 % of SO2
Description | White crystalline powder or colourless crystals
Identification |
A.Positive tests for sulphite and for sodium | A. | Positive tests for sulphite and for sodium |
A. | Positive tests for sulphite and for sodium
B.pH of a 10 % solution (anhydrous) or a 20 % solution (heptahydrate) between 8,5 and 11,5 | B. | pH of a 10 % solution (anhydrous) or a 20 % solution (heptahydrate) between 8,5 and 11,5 |
B. | pH of a 10 % solution (anhydrous) or a 20 % solution (heptahydrate) between 8,5 and 11,5
Purity |
Thiosulphate | Not more than 0,1 % based on the SO2content
Iron | Not more than 50 mg/kg based on the SO2content
Selenium | Not more than 10 mg/kg based on the SO2content
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kg
Heavy metals (as Pb) | Not more than 10 mg/kgE 222 SODIUM BISULPHITE
Definition |
Chemical name | Sodium bisulphite
Sodium hydrogen sulphite
Einecs | 231-921-4
Chemical formula | NaHSO3in aqueous solution
Molecular weight | 104,06
Assay | Content not less than 32 % w/w NaHSO3
Description | A clear, colourless to yellow solution
Identification |
A.Positive tests for sulphite and for sodium | A. | Positive tests for sulphite and for sodium |
A. | Positive tests for sulphite and for sodium
B.pH of a 10 % aqueous solution between 2,5 and 5,5 | B. | pH of a 10 % aqueous solution between 2,5 and 5,5 |
B. | pH of a 10 % aqueous solution between 2,5 and 5,5
Purity |
Iron | Not more than 50 mg/kg of Na2SO3based on the SO2content
Selenium | Not more than 10 mg/kg based on the SO2content
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kg
Heavy metals (as Pb) | Not more than 10 mg/kgE 223 SODIUM METABISULPHITE
Synonyms | Pyrosulphite
Sodium pyrosulphite
Definition |
Chemical name | Sodium disulphite
Disodium pentaoxodisulphate
Einecs | 231-673-0
Chemical formula | Na2S2O5
Molecular weight | 190,11
Assay | Content not less than 95 % Na2S2O5and not less than 64 % of SO2
Description | White crystals or crystalline powder
Identification |
A.Positive tests for sulphite and for sodium | A. | Positive tests for sulphite and for sodium |
A. | Positive tests for sulphite and for sodium
B.pH of a 10 % aqueous solution between 4,0 and 5,5 | B. | pH of a 10 % aqueous solution between 4,0 and 5,5 |
B. | pH of a 10 % aqueous solution between 4,0 and 5,5
Purity |
Thiosulphate | Not more than 0,1 % based on the SO2content
Iron | Not more than 50 mg/kg based on the SO2content
Selenium | Not more than 10 mg/kg based on the SO2content
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kg
Heavy metals (as Pb) | Not more than 10 mg/kgE 224 POTASSIUM METABISULPHITE
Synonyms | Potassium pyrosulphite
Definition |
Chemical name | Potassium disulphite
Potassium pentaoxo disulphate
Einecs | 240-795-3
Chemical formula | K2S2O5
Molecular weight | 222,33
Assay | Content not less than 90 % of K2S2O5and not less than 51,8 % of SO2, the remainder being composed almost entirely of potassium sulphate
Description | Colourless crystals or white crystalline powder
Identification |
A.Positive tests for sulphite and for potassium | A. | Positive tests for sulphite and for potassium |
A. | Positive tests for sulphite and for potassium
Purity |
Thiosulphate | Not more than 0,1 % based on the SO2content
Iron | Not more than 50 mg/kg based on the SO2content
Selenium | Not more than 10 mg/kg based on the SO2content
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kg
Heavy metals (as Pb) | Not more than 10 mg/kgE 226 CALCIUM SULPHITE
Definition |
Chemical name | Calcium sulphite
Einecs | 218-235-4
Chemical formula | CaSO3·2H2O
Molecular weight | 156,17
Assay | Content not less than 95 % of CaSO3·2H2O and not less than 39 % of SO2
Description | White crystals or white crystalline powder
Identification |
A.Positive tests for sulphite and for calcium | A. | Positive tests for sulphite and for calcium |
A. | Positive tests for sulphite and for calcium
Purity |
Iron | Not more than 50 mg/kg based on the SO2content
Selenium | Not more than 10 mg/kg based on the SO2content
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kg
Heavy metals (as Pb) | Not more than 10 mg/kgE 227 CALCIUM BISULPHITE
Definition |
Chemical name | Calcium bisulphite
Calcium hydrogen sulphite
Einecs | 237-423-7
Chemical formula | Ca(HSO3)2
Molecular weight | 202,22
Assay | 6 to 8 % (w/v) of sulphur dioxide and 2,5 to 3,5 % (w/v) of calcium dioxide corresponding to 10 to 14 % (w/v) of calcium bisulphite [Ca(HSO3)2]
Description | Clear greenish-yellow aqueous solution having a distinct odour of sulphur dioxide
Identification |
A.Positive tests for sulphite and for calcium | A. | Positive tests for sulphite and for calcium |
A. | Positive tests for sulphite and for calcium
Purity |
Iron | Not more than 50 mg/kg based on the SO2content
Selenium | Not more than 10 mg/kg based on the SO2content
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kg
Heavy metals (as Pb) | Not more than 10 mg/kgE 228 POTASSIUM BISULPHITE
Definition |
Chemical name | Potassium bisulphite
Potassium hydrogen sulphite
Einecs | 231-870-1
Chemical formula | KHSO3in aqueous solution
Molecular weight | 120,17
Assay | Content not less than 280 g KHSO3per litre (or 150 g SO2per litre)
Description | Clear colourless aqueous solution
Identification |
A.Positive tests for sulphite and for potassium | A. | Positive tests for sulphite and for potassium |
A. | Positive tests for sulphite and for potassium
Purity |
Iron | Not more than 50 mg/kg based on the SO2content
Selenium | Not more than 10 mg/kg based on the SO2content
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kg
Heavy metals (as Pb) | Not more than 10 mg/kgE 230 BIPHENYL
Synonyms | Diphenyl
Definition |
Chemical name | 1,1′-biphenyl
Phenylbenzene
Einecs | 202-163-5
Chemical formula | C12H10
Molecular weight | 154,20
Assay | Content not less than 99,8 %
Description | White or pale yellow to amber crystalline solid having a characteristic odour
Identification |
A.Melting range | A. | Melting range | 68,5oC to 70,5oC
A. | Melting range
B.Distillation range | B. | Distillation range | It distils completely within a 2,5oC range between 252,5oC and 257,5oC
B. | Distillation range
Purity |
Benzene | Not more than 10 mg/kg
Aromatic amines | Not more than 2 mg/kg (as aniline)
Phenol derivatives | Not more than 5 mg/kg (as phenol)
Readily carbonisable substances | Cold solution of 0,5 g of biphenyl in 5 ml of 94,5 to 95,5 % sulphuric acid must not show a stronger colouring than that of a reference liquid containing 0,2 ml of cobalt chloride TSC, 0,3 ml of ferric chloride TSC, 0,1 ml of copper sulphate TSC and 4,4 ml of water
Terphenyl and higher polyphenyl derivatives | Not more than 0,2 %
Polycyclic aromatic hydrocarbons | Absent
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kg
Heavy metals (as Pb) | Not more than 10 mg/kgE 231 ORTHOPHENYLPHENOL
Synonyms | Orthoxenol
Definition |
Chemical name | (1,1′-Biphenyl)-2-ol
2-Hydroxydiphenyl
o-Hydroxydiphenyl
Einecs | 201-993-5
Chemical formula | C12H10O
Molecular weight | 170,20
Assay | Content not less than 99 %
Description | White or slightly yellowish crystalline powder
Identification |
A.Melting range | A. | Melting range | 56oC to 58oC
A. | Melting range
B.Positive test for phenolate | B. | Positive test for phenolate | An ethanolic solution (1 g in 10 ml) produces a green colour on addition of 10 % ferric chloride solution
B. | Positive test for phenolate
Purity |
Sulphated ash | Not more than 0,05 %
Diphenyl ether | Not more than 0,3 %
p-Phenylphenol | Not more than 0,1 %
1-Naphthol | Not more than 0,01 %
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kg
Heavy metals (as Pb) | Not more than 10 mg/kgE 232 SODIUM ORTHOPHENYLPHENOL
Synonyms | Sodium orthophenylphenate
Sodium salt ofo-phenylphenol
Definition |
Chemical name | Sodium orthophenylphenol
Einecs | 205-055-6
Chemical formula | C12H9ONa· 4H2O
Molecular weight | 264,26
Assay | Content not less than 97 % of C12H9ONa· 4H2O
Description | White or slightly yellowish crystalline powder
Identification |
A.Positive tests for phenolate and for sodium | A. | Positive tests for phenolate and for sodium |
A. | Positive tests for phenolate and for sodium
B.Melting range of orthophenylphenol isolated by acidification and not recrystallised derived from the sample 56oC to 58oC after drying in a sulphuric acid desiccator | B. | Melting range of orthophenylphenol isolated by acidification and not recrystallised derived from the sample 56oC to 58oC after drying in a sulphuric acid desiccator |
B. | Melting range of orthophenylphenol isolated by acidification and not recrystallised derived from the sample 56oC to 58oC after drying in a sulphuric acid desiccator
C.pH of a 2 % aqueous solution must be between 11,1 and 11,8 | C. | pH of a 2 % aqueous solution must be between 11,1 and 11,8 |
C. | pH of a 2 % aqueous solution must be between 11,1 and 11,8
Purity |
Diphenylether | Not more than 0,3 %
p-phenylphenol | Not more than 0,1 %
1-naphthol | Not more than 0,01 %
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kg
Heavy metals (as Pb) | Not more than 10 mg/kgE 233 THIABENDAZOLE
Definition |
Chemical name | 4-(2-benzimidazolyl)thiazole
2-(4-thiazolyl)-1H-benzimidazole
Einecs | 205-725-8
Chemical formula | C10H7N3S
Molecular weight | 201,26
Assay | Content not less than 98 % on the anhydrous basis
Description | White, or almost white, odourless powder
Identification |
A.Melting range | A. | Melting range | 296oC to 303oC
A. | Melting range
B.Spectrometry | B. | Spectrometry | Absorption maxima in 0,1 N HCl (0,0005 % w/v) at 302 nm, 258 nm and 243 nm
B. | Spectrometry
at 302 nm ± 2 nm: approximately 1 230
at 258 nm ± 2 nm: approximately 200
at 243 nm ± 2 nm: approximately 620
Ratio of absorption 243 nm/302 nm = 0,47 to 0,53
Ratio of absorption 258 nm/302 nm = 0,14 to 0,18
Purity |
Water content | Not more than 0,5 % (Karl Fischer method)
Sulphated ash | Not more than 0,2 %
Selenium | Not more than 3 mg/kg
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kg
Heavy metals (as Pb) | Not more than 10 mg/kgE 234 NISIN
Definition | Nisin consists of several closely related polypeptides produced by natural strains ofStreptococcus lactis, Lancefield group N
Einecs | 215-807-5
Chemical formula | C143H230N42O37S7
Molecular weight | 3 354 ,12
Assay | Nisin concentrate contains not less than 900 units per mg in a mixture of non-fat milk solids and a minimum sodium chloride content of 50 %
Description | White powder
Purity |
Loss on drying | Not more than 3 % when dried to constant weight at 102oC to 103oC
Arsenic | Not more than 1 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kg
Heavy metals (as Pb) | Not more than 10 mg/kgE 235 NATAMYCIN
Synonyms | Pimaricin
Definition | Natamycin is a fungicide of the polyene macrolide group, and is produced by natural strains ofStreptomyces natalensisor ofStreptococcus lactis
Einecs | 231-683-5
Chemical formula | C33H47O13N
Molecular weight | 665,74
Assay | Content not less than 95 % on the anhydrous basis
Description | White to creamy-white crystalline powder
Identification |
A.Colour reactions | A. | Colour reactions | On adding a few crystals of natamycin on a spot plate, to a drop of:—concentrated hydrochloric acid, a blue colour develops,—concentrated phosphoric acid, a green colour develops,which changes into pale red after a few minutes | — | concentrated hydrochloric acid, a blue colour develops, | — | concentrated phosphoric acid, a green colour develops,
A. | Colour reactions
— | concentrated hydrochloric acid, a blue colour develops,
— | concentrated phosphoric acid, a green colour develops,
B.Spectrometry | B. | Spectrometry | A 0,0005 % w/v solution in 1 % methanolic acetic acid solution has absorption maxima at about 290 nm, 303 nm and 318 nm, a shoulder at about 280 nm and exhibits minima at about 250 nm, 295,5 nm and 311 nm
B. | Spectrometry
C.pH | C. | pH | 5,5 to 7,5 (1 % w/v solution in previously neutralised mixture of 20 parts dimethylformamide and 80 parts of water)
C. | pH
D.Specific rotation | D. | Specific rotation | [α]D20= + 250oto + 295o(a 1 % w/v solution in glacial acetic acid, at 20oC and calculated with reference to the dried material)
D. | Specific rotation
Purity |
Loss on drying | Not more than 8 % (over P2O5, in vacuum at 60oC to constant weight)
Sulphated ash | Not more than 0,5 %
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kg
Heavy metals (as Pb) | Not more than 10 mg/kg
Microbiological criteria: total viable count | Not more than 100/gE 239 HEXAMETHYLENE TETRAMINE
Synonyms | Hexamine
Methenamine
Definition |
Chemical name | 1,3,5,7-Tetraazatricyclo [3.3.1.13,7]-decane, hexamethylenetetramine
Einecs | 202-905-8
Chemical formula | C6H12N4
Molecular weight | 140,19
Assay | Content not less than 99 % on the anhydrous basis
Description | Colourless or white crystalline powder
Identification |
A.Positive tests for formaldehyde and for ammonia | A. | Positive tests for formaldehyde and for ammonia |
A. | Positive tests for formaldehyde and for ammonia
B.Sublimation point approximately 260oC | B. | Sublimation point approximately 260oC |
B. | Sublimation point approximately 260oC
Purity |
Loss on drying | Not more than 0,5 % after drying at 105oC in vacuum over P2O5for two hours
Sulphated ash | Not more than 0,05 %
Sulphates | Not more than 0,005 % expressed as SO4
Chlorides | Not more than 0,005 % expressed as Cl
Ammonium salts | Not detectable
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kg
Heavy metals (as Pb) | Not more than 10 mg/kgE 242 DIMETHYL DICARBONATE
Synonyms | DMDC
Dimethyl pyrocarbonate
Definition |
Chemical name | Dimethyl dicarbonate
Pyrocarbonic acid dimethyl ester
Einecs | 224-859-8
Chemical formula | C4H6O5
Molecular weight | 134,09
Assay | Content not less than 99,8 %
Description | Colourless liquid, decomposes in aqueous solution. It is corrosive to skin and eyes and toxic by inhalation and ingestion
Identification |
A.Decomposition | A. | Decomposition | After dilution positive tests for CO2and methanol
A. | Decomposition
B.Melting point | B. | Melting point | 17oC
B. | Melting point
Boiling point | 172oC with decomposition
C.Density 20oC | C. | Density 20oC | Approximately 1,25 g/cm3
C. | Density 20oC
D.Infrared spectrum | D. | Infrared spectrum | Maxima at 1 156 and 1 832 cm-1
D. | Infrared spectrum
Purity |
Dimethyl carbonate | Not more than 0,2 %
Chlorine, total | Not more than 3 mg/kg
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kg
Heavy metals (as Pb) | Not more than 10 mg/kgE 249 POTASSIUM NITRITE
Definition |
Chemical name | Potassium nitrite
Einecs | 231-832-4
Chemical formula | KNO2
Molecular weight | 85,11
Assay | Content not less than 95 % on the anhydrous basis(5)
Description | White or slightly yellow, deliquescent granules
Identification |
A.Positive tests for nitrite and for potassium | A. | Positive tests for nitrite and for potassium |
A. | Positive tests for nitrite and for potassium
B.pH of a 5 % solution: | B. | pH of a 5 % solution: | Not less than 6,0 and not more than 9,0
B. | pH of a 5 % solution:
Purity |
Loss on drying | Not more than 3 % after drying for four hours over silica gel
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kg
Heavy metals (as Pb) | Not more than 10 mg/kgE 250 SODIUM NITRITE
Definition |
Chemical name | Sodium nitrite
Einecs | 231-555-9
Chemical formula | NaNO2
Molecular weight | 69,00
Assay | Content not less than 97 % on the anhydrous basis(6)
Description | White crystalline powder or yellowish lumps
Identification |
A.Positive tests for nitrite and for sodium | A. | Positive tests for nitrite and for sodium |
A. | Positive tests for nitrite and for sodium
Purity |
Loss on drying | Not more than 0,25 % after drying over silica gel for four hours
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kg
Heavy metals (as Pb) | Not more than 10 mg/kgE 251 SODIUM NITRATE1. SOLID SODIUM NITRATE
Synonyms | Chile saltpetre
Cubic or soda nitre
Definition |
Chemical name | Sodium nitrate
Einecs | 231-554-3
Chemical formula | NaNO3
Molecular weight | 85,00
Assay | Content not less than 99 % after drying
Description | White crystalline, slightly hygroscopic powder
Identification |
A.Positive tests for nitrate and for sodium | A. | Positive tests for nitrate and for sodium |
A. | Positive tests for nitrate and for sodium
B.pH of a 5 % solution | B. | pH of a 5 % solution | Not less than 5,5 and more than 8,3
B. | pH of a 5 % solution
Purity |
Loss on drying | Not more than 2 % after drying at 105oC for four hours
Nitrites | Not more than 30 mg/kg expressed as NaNO2
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kgE 251 SODIUM NITRATE2. LIQUID SODIUM NITRATE
Definition | Liquid sodium nitrate is an aqueous solution of sodium nitrate as the direct result of the chemical reaction between sodium hydroxide and nitric acid in stoechiometric amounts, without subsequent crystallisation. Standardised forms prepared from liquid sodium nitrate meeting these specifications may contain nitric acid in excessive amounts, if clearly stated or labelled.
Chemical name | Sodium nitrate
Einecs | 231-554-3
Chemical formula | NaNO3
Molecular weight | 85,00
Assay | Content between 33,5 % and 40,0 % of NaNO3
Description | Clear colourless liquid
Identification |
A.Positive tests for nitrate and for sodium | A. | Positive tests for nitrate and for sodium |
A. | Positive tests for nitrate and for sodium
B.pH | B. | pH | Not less than 1,5 and not more than 3,5
B. | pH
Purity |
Free nitric acid | Not more than 0,01 %
Nitrites | Not more than 10 mg/kg expressed as NaNO2
Arsenic | Not more than 1 mg/kg
Lead | Not more than 1 mg/kg
Mercury | Not more than 0,3 mg/kg
This specification refers to a 35 % aqueous solution | E 252 POTASSIUM NITRATE
Synonyms | Chile saltpetreCubic or soda nitre
Definition |
Chemical name | Potassium nitrate
Einecs | 231-818-8
Chemical formula | KNO3
Molecular weight | 101,11
Assay | Content not less than 99 % on the anhydrous basis
Description | White crystalline powder or transparent prisms having a cooling, saline, pungent taste
Identification |
A.Positive tests for nitrate and for potassium | A. | Positive tests for nitrate and for potassium |
A. | Positive tests for nitrate and for potassium
B.pH of a 5 % solution | B. | pH of a 5 % solution | Not less than 4,5 and not more than 8,5
B. | pH of a 5 % solution
Purity |
Loss on drying | Not more than 1 % after drying at 105oC for four hours
Nitrites | Not more than 20 mg/kg expressed as KNO2
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kg
Heavy metals (as Pb) | Not more than 10 mg/kgE 260 ACETIC ACID
Definition |
Chemical name | Acetic acid
Ethanoic acid
Einecs | 200-580-7
Chemical formula | C2H4O2
Molecular weight | 60,05
Assay | Content not less than 99,8 %
Description | Clear, colourless liquid having a pungent, characteristic odour
Identification |
A.Boiling point | A. | Boiling point | 118oC at 760 mm pressure (of mercury)
A. | Boiling point
B.Specific gravity | B. | Specific gravity | About 1,049
B. | Specific gravity
C.A one in three solution gives positive tests for acetate | C. | A one in three solution gives positive tests for acetate |
C. | A one in three solution gives positive tests for acetate
D.Solidification point | D. | Solidification point | Not lower than 14,5oC
D. | Solidification point
Purity |
Non-volatile residue | Not more than 100 mg/kg
Formic acid, formates and other oxidisable substances | Not more than 1 000 mg/kg expressed as formic acid
Readily oxidisable substances | Dilute 2 ml of the sample in a glass-stoppered container with 10 ml of water and add 0,1 ml of 0,1 N potassium permanganate. The pink colour does not change to brown within 30 minutes
Arsenic | Not more than 1 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kg
Heavy metals (as Pb) | Not more than 10 mg/kgE 261 POTASSIUM ACETATE
Definition |
Chemical name | Potassium acetate
Einecs | 204-822-2
Chemical formula | C2H3O2K
Molecular weight | 98,14
Assay | Content not less than 99 % on the anhydrous basis
Description | Colourless, deliquescent crystals or a white crystalline powder, odourless or with a faint acetic odour
Identification |
A.pH of a 5 % aqueous solution | A. | pH of a 5 % aqueous solution | Not less than 7,5 and not more than 9,0
A. | pH of a 5 % aqueous solution
B.Positive tests for acetate and for potassium | B. | Positive tests for acetate and for potassium |
B. | Positive tests for acetate and for potassium
Purity |
Loss on drying | Not more than 8 % after drying at 150oC for two hours
Formic acid, formates and other oxidisable substances | Not more than 1 000 mg/kg expressed as formic acid
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kg
Heavy metals (as Pb) | Not more than 10 mg/kgE 262 (i) SODIUM ACETATE
Definition |
Chemical name | Sodium acetate
Einecs | 204-823-8
Chemical formula | C2H3NaO2·nH2O (n = 0 or 3)
Molecular weight | Anhydrous: | 82,03
Trihydrate: | 136,08
Assay | Content (for both of anhydrous and trihydrate form) not less than 98,5 % on the anhydrous basis
Description | Anhydrous: | White, odourless, granular, hygroscopic powder
Trihydrate: | Colourless, transparent crystals or a granular crystalline powder, odourless or with a faint, acetic odour. Effloresces in warm, dry air
Identification |
A.pH of a 1 % aqueous solution | A. | pH of a 1 % aqueous solution | Not less than 8,0 and not more than 9,5
A. | pH of a 1 % aqueous solution
B.Positive tests for acetate and for sodium | B. | Positive tests for acetate and for sodium |
B. | Positive tests for acetate and for sodium
Purity |
Loss on drying | Anhydrous: | Not more than 2 % (120oC, 4 hours)
Trihydrate: | Between 36 and 42 % (120oC, 4 hours)
Formic acid, formates and other oxidisable substances | Not more than 1 000 mg/kg expressed as formic acid
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kg
Heavy metals (as Pb) | Not more than 10 mg/kgE 262 (ii) SODIUM DIACETATE
Definition | Sodium diacetate is a molecular compound of sodium acetate and acetic acid
Chemical name | Sodium hydrogen diacetate
Einecs | 204-814-9
Chemical formula | C4H7NaO4·nH2O (n = 0 or 3)
Molecular weight | 142,09 (anhydrous)
Assay | Content 39 to 41 % of free acetic acid and 58 to 60 % of sodium acetate
Description | White, hygroscopic crystalline solid with an acetic odour
Identification |
A.pH of a 10 % aqueous solution | A. | pH of a 10 % aqueous solution | Not less than 4,5 and not more than 5,0
A. | pH of a 10 % aqueous solution
B.Positive tests for acetate and for sodium | B. | Positive tests for acetate and for sodium |
B. | Positive tests for acetate and for sodium
Purity |
Water content | Not more than 2 % (Karl Fischer method)
Formic acid, formates and other oxidisable substances | Not more than 1 000 mg/kg expressed as formic acid
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kg
Heavy metals (as Pb) | Not more than 10 mg/kgE 263 CALCIUM ACETATE
Definition |
Chemical name | Calcium acetate
Einecs | 200-540-9
Chemical formula | Anhydrous: | C4H6O4Ca
Monohydrate: | C4H6O4Ca· H2O
Molecular weight | Anhydrous: | 158,17
Monohydrate: | 176,18
Assay | Content not less than 98 % on the anhydrous basis
Description | Anhydrous calcium acetate is a white, hygroscopic, bulky, crystalline solid with a slightly bitter taste. A slight odour of acetic acid may be present. The monohydrate may be needles, granules or powder
Identification |
A.pH of a 10 % aqueous solution | A. | pH of a 10 % aqueous solution | Not less than 6,0 and not more than 9,0
A. | pH of a 10 % aqueous solution
B.Positive tests for acetate and for calcium | B. | Positive tests for acetate and for calcium |
B. | Positive tests for acetate and for calcium
Purity |
Loss on drying | Not more than 11 % after drying (155oC to constant weight, for the monohydrate)
Water insoluble matter | Not more than 0,3 %
Formic acid, formates and other oxidisable substances | Not more than 1 000 mg/kg expressed as formic acid
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kg
Heavy metals (as Pb) | Not more than 10 mg/kgE 270 LACTIC ACID
Definition |
Chemical name | Lactic acid
2-Hydroxypropionic acid
1-Hydroxyethane-1-carboxylic acid
Einecs | 200-018-0
Chemical formula | C3H6O3
Molecular weight | 90,08
Assay | Content not less than 76 % and not more than 84 %
Description | Colourless or yellowish, nearly odourless, syrupy liquid with an acid taste, consisting of a mixture of lactic acid (C3H6O3) and lactic acid lactate (C6H10O5). It is obtained by the lactic fermentation of sugars or is prepared synthetically
Note:Lactic acid is hygroscopic and when concentrated by boiling, it condenses to form lactic acid lactate, which on dilution and heating hydrolyzes to lactic acid |
Identification |
A.Positive test for lactate | A. | Positive test for lactate |
A. | Positive test for lactate
Purity |
Sulphated ash | Not more than 0,1 %
Chloride | Not more than 0,2 %
Sulphate | Not more than 0,25 %
Iron | Not more than 10 mg/kg
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kg
Heavy metals (as Pb) | Not more than 10 mg/kg
Note:This specification refers to a 80 % aqueous solution; for weaker aqueous solutions, calculate values corresponding to their lactic acid content | E 280 PROPIONIC ACID
Definition |
Chemical name | Propionic acid
Propanoic acid
Einecs | 201-176-3
Chemical formula | C3H6O2
Molecular weight | 74,08
Assay | Content not less than 99,5 %
Description | Colourless or slightly yellowish, oily liquid with a slightly pungent odour
Indentification |
A.Melting point | A. | Melting point | – 22oC
A. | Melting point
B.Distillation range | B. | Distillation range | 138,5oC to 142,5oC
B. | Distillation range
Purity |
Non-volatile residue | Not more than 0,01 % when dried at 140oC to constant weight
Aldehydes | Not more than 0,1 % expressed as formaldehyde
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kg
Heavy metals (as Pb) | Not more than 10 mg/kgE 281 SODIUM PROPIONATE
Definition |
Chemical name | Sodium propionate
Sodium propanoate
Einecs | 205-290-4
Chemical formula | C3H5O2Na
Molecular weight | 96,06
Assay | Content not less than 99 % after drying for two hours at 105oC
Description | White crystalline hygroscopic powder, or a fine white powder
Identification |
A.Positive tests for propionate and for sodium | A. | Positive tests for propionate and for sodium |
A. | Positive tests for propionate and for sodium
B.pH of a 10 % aqueous solution | B. | pH of a 10 % aqueous solution | Not less than 7,5 and not more than 10,5
B. | pH of a 10 % aqueous solution
Purity |
Loss on drying | Not more than 4 % determined by drying for two hours at 105oC
Water insolubles | Not more than 0,1 %
Iron | Not more than 50 mg/kg
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kg
Heavy metals (as Pb) | Not more than 10 mg/kgE 282 CALCIUM PROPIONATE
Definition |
Chemical name | Calcium propionate
Einecs | 223-795-8
Chemical formula | C6H10O4Ca
Molecular weight | 186,22
Assay | Content not less than 99 %, after drying for two hours at 105oC
Description | White crystalline powder
Identification |
A.Positive tests for propionate and for calcium | A. | Positive tests for propionate and for calcium |
A. | Positive tests for propionate and for calcium
B.pH of a 10 % aqueous solution | B. | pH of a 10 % aqueous solution | Between 6,0 and 9,0
B. | pH of a 10 % aqueous solution
Purity |
Loss on drying | Not more than 4 %, determined by drying for two hours at 105oC
Water insolubles | Not more than 0,3 %
Iron | Not more than 50 mg/kg
Fluoride | Not more than 10 mg/kg
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kg
Heavy metals (as Pb) | Not more than 10 mg/kgE 283 POTASSIUM PROPIONATE
Definition |
Chemical name | Potassium propionate
Potassium propanoate
Einecs | 206-323-5
Chemical formula | C3H5KO2
Molecular weight | 112,17
Assay | Content not less than 99 % after drying for two hours at 105oC
Description | White crystalline powder
Identification |
A.Positive tests for propionate and for potassium | A. | Positive tests for propionate and for potassium |
A. | Positive tests for propionate and for potassium
Purity |
Loss on drying | Not more than 4 %, determined by drying for two hours at 105oC
Water-insoluble substances | Not more than 0,3 %
Iron | Not more than 30 mg/kg
Fluoride | Not more than 10 mg/kg
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kg
Heavy metals (as Pb) | Not more than 10 mg/kgE 284 BORIC ACID
Synonyms | Boracic acid
Orthoboric acid
Borofax
Definition |
Einecs | 233-139-2
Chemical formula | H3BO3
Molecular weight | 61,84
Assay | Content not less than 99,5 %
Description | Colourless, odourless, transparent crystals or white granules or powder; slightly unctuous to the touch; occurs in nature as the mineral sassolite
Identification |
A.Melting point | A. | Melting point | At approximately 171oC
A. | Melting point
B.Burns with a nice green flame | B. | Burns with a nice green flame |
B. | Burns with a nice green flame
C.pH of a 3,3 % aqueous solution | C. | pH of a 3,3 % aqueous solution | Between 3,8 and 4,8
C. | pH of a 3,3 % aqueous solution
Purity |
Peroxides | No colour develops with added KI-solution
Arsenic | Not more than 1 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kg
Heavy metals (as Pb) | Not more than 10 mg/kgE 285 SODIUM TETRABORATE (BORAX)
Synonyms | Sodium borate
Definition |
Chemical name | Sodium tetraborate
Sodium biborate
Sodium pyroborate
Anhydrous tetraborate
Einecs | 215-540-4
Chemical formula | Na2B4O7
Na2B4O7·10H2O
Molecular weight | 201,27
Description | Powder or glass-like plates becoming opaque on exposure to air; slowly soluble in water
Identification |
A.Melting range | A. | Melting range | Between 171oC and 175oC with decomposition
A. | Melting range
Purity |
Peroxides | No colour develops with added KI-solution
Arsenic | Not more than 1 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kg
Heavy metals (as Pb) | Not more than 10 mg/kgE 290 CARBON DIOXIDE
Synonyms | Carbonic acid gas
Dry ice (solid form)
Carbonic anhydride
Definition |
Chemical name | Carbon dioxide
Einecs | 204-696-9
Chemical formula | CO2
Molecular weight | 44,01
Assay | Content not less than 99 % v/v on the gaseous basis
Description | A colourless gas under normal environmental conditions with a slight pungent odour. Commercial carbon dioxide is shipped and handled as a liquid in pressurised cylinders or bulk storage systems, or in compressed solid blocks of ‘dry ice’. Solid (dry ice) forms usually contain added substances, such as propylene glycol or mineral oil, as binders
Identification |
A.Precipitation (Precipitate formation) | A. | Precipitation (Precipitate formation) | When a stream of the sample is passed through a solution of barium hydroxide, a white precipitate is produced which dissolves with effervescence in dilute acetic acid
A. | Precipitation (Precipitate formation)
Purity |
Acidity | 915 ml of gas bubbled through 50 ml of freshly boiled water must not render the latter more acid to methylorange than is 50 ml freshly boiled water to which has been added 1 ml of hydrochloric acid (0,01 N)
Reducing substances, hydrogen phosphide and sulphide | 915 ml of gas bubbled through 25 ml of ammoniacal silver nitrate reagent to which has been added 3 ml of ammonia must not cause clouding or blackening of this solution
Carbon monoxide | Not more than 10 μl/l
Oil content | Not more than 0,1 mg/lE 296 MALIC ACID
Synonyms | DL-Malic acid, pomalous acid
Definition |
Chemical name | DL-Malic acid, hydroxybutanedioic acid, hydroxysuccinic acid
Einecs | 230-022-8
Chemical formula | C4H6O5
Molecular weight | 134,09
Assay | Content not less than 99,0 %
Description | White or nearly white crystalline powder or granules
Identification |
A.Melting range between 127oC and 132oC | A. | Melting range between 127oC and 132oC |
A. | Melting range between 127oC and 132oC
B.Positive test for malate | B. | Positive test for malate |
B. | Positive test for malate
C.Solutions of this substance are optically inactive in all concentrations | C. | Solutions of this substance are optically inactive in all concentrations |
C. | Solutions of this substance are optically inactive in all concentrations
Purity |
Sulphated ash | Not more than 0,1 %
Fumaric acid | Not more than 1,0 %
Maleic acid | Not more than 0,05 %
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kgE 297 FUMARIC ACID
Definition |
Chemical name | Trans-butenedioic acid, trans-1,2-ethylene-dicarboxylic acid
Einecs | 203-743-0
Chemical formula | C4H4O4
Molecular weight | 116,07
Assay | Content not less than 99,0 % on the anhydrous basis
Description | White crystalline powder or granules
Identification |
A.Melting range | A. | Melting range | 286oC-302oC (closed capillary, rapid heating)
A. | Melting range
B.Positive tests for double bonds and for 1,2-dicarboxylic acid | B. | Positive tests for double bonds and for 1,2-dicarboxylic acid |
B. | Positive tests for double bonds and for 1,2-dicarboxylic acid
C.pH of a 0,05 % solution at 25oC | C. | pH of a 0,05 % solution at 25oC | 3,0 -3,2
C. | pH of a 0,05 % solution at 25oC
Purity |
Loss on drying | Not more than 0,5 % (120oC, 4h)
Sulphated ash | Not more than 0,1 %
Maleic acid | Not more than 0,1 %
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kgE 300 ASCORBIC ACID
Definition |
Chemical name | L-ascorbic acid
Ascorbic acid
2,3-Didehydro-L-threo-hexono-1,4-lactone
3-Keto-L-gulofuranolactone
Einecs | 200-066-2
Chemical formula | C6H8O6
Molecular weight | 176,13
Assay | Ascorbic acid, after drying in a vacuum desiccator over sulphuric acid for 24 hours, contains not less than 99 % of C6H8O6
Description | White to pale yellow, odourless crystalline solid
Identification |
A.Melting range | A. | Melting range | Between 189oC and 193oC with decomposition
A. | Melting range
B.Positive tests for ascorbic acid | B. | Positive tests for ascorbic acid |
B. | Positive tests for ascorbic acid
Purity |
Loss on drying | Not more than 0,4 % after drying in a vacuum desiccator over sulphuric acid for 24 hours
Sulphated ash | Not more than 0,1 %
Specific rotation | [α]D20between +20,5oand +21,5o(10 % w/v aqueous solution)
pH of a 2 % aqueous solution | Between 2,4 and 2,8
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kg
Heavy metals (as Pb) | Not more than 10 mg/kgE 301 SODIUM ASCORBATE
Definition |
Chemical name | Sodium ascorbate
Sodium L-ascorbate
2,3-Didehydro-L-threo-hexono-1,4-lactone sodium enolate
3-Keto-L-gulofurano-lactone sodium enolate
Einecs | 205-126-1
Chemical formula | C6H7O6Na
Molecular weight | 198,11
Assay | Sodium ascorbate, after drying in a vacuum desiccator over sulphuric acid for 24 hours, contains not less than 99 % of C6H7O6Na
Description | White or almost white, odourless crystalline solid which darkens on exposure to light
Identification |
A.Positive tests for ascorbate and for sodium | A. | Positive tests for ascorbate and for sodium |
A. | Positive tests for ascorbate and for sodium
Purity |
Loss on drying | Not more than 0,25 % after drying in a vacuum desiccator over sulphuric acid for 24 hours
Specific rotation | [α]D20between + 103oand + 106o(10 % w/v aqueous solution)
pH of 10 % aqueous solution | Between 6,5 and 8,0
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kg
Heavy metals (as Pb) | Not more than 10 mg/kgE 302 CALCIUM ASCORBATE
Definition |
Chemical name | Calcium ascorbate dihydrate
Calcium salt of 2,3-didehydro-L-threo-hexono-1,4-lactone dihydrate
Einecs | 227-261-5
Chemical formula | C12H14O12Ca· 2H2O
Molecular weight | 426,35
Assay | Content not less than 98 % on a volatile matter-free basis
Description | White to slightly pale greyish-yellow odourless crystalline powder
Identification |
A.Positive tests for ascorbate and for calcium | A. | Positive tests for ascorbate and for calcium |
A. | Positive tests for ascorbate and for calcium
Purity |
Fluoride | Not more than 10 mg/kg (expressed as fluorine)
Specific rotation | [α]D20between + 95oand + 97o(5 % w/v aqueous solution)
pH of 10 % aqueous solution | Between 6,0 and 7,5
Volatile matter | Not more than 0,3 % determined by drying at room temperature for 24 hours in a desiccator containing sulphuric acid or phosphorus pentoxide
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kg
Heavy metals (as Pb) | Not more than 10 mg/kgE 304 (i) ASCORBYL PALMITATE
Definition |
Chemical name | Ascorbyl palmitate
L-ascorbyl palmitate
2,3-didehydro-L-threo-hexono-1,4-lactone-6-palmitate
6-palmitoyl-3-keto-L-gulofuranolactone
Einecs | 205-305-4
Chemical formula | C22H38O7
Molecular weight | 414,55
Assay | Content not less than 98 % on the dried basis
Description | White or yellowish-white solid with a citrus-like odour
Identification |
A.Melting range | A. | Melting range | Between 107oC and 117oC
A. | Melting range
Purity |
Loss on drying | Not more than 2,0 % after drying in a vacuum oven at 56oC and 60oC for one hour
Sulphated ash | Not more than 0,1 %
Specific rotation | [α]D20between + 21oand + 24o(5 % w/v in methanol solution)
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kg
Heavy metals (as Pb) | Not more than 10 mg/kgE 304 (ii) ASCORBYL STEARATE
Definition |
Chemical name | Ascorbyl stearate
L-ascorbyl stearate
2,3-didehydro-L-threo-hexono-1,4-lactone-6-stearate
6-stearoyl-3-keto-L-gulofuranolactone
Einecs | 246-944-9
Chemical formula | C24H42O7
Molecular weight | 442,6
Assay | Content not less than 98 %
Description | White or yellowish, white solid with a citrus-like odour
Identification |
A.Melting point | A. | Melting point | About 116oC
A. | Melting point
Purity |
Loss on drying | Not more than 2,0 % after drying in a vacuum oven at 56oC to 60oC for one hour
Sulphated ash | Not more than 0,1 %
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kg
Heavy metals (as Pb) | Not more than 10 mg/kgE 306 TOCOPHEROL-RICH EXTRACT
Definition | Product obtained by the vacuum steam distillation of edible vegetable oil products, comprising concentrated tocopherols and tocotrienols
Contains tocopherols such as d-α-, d-β-, d-γ- and d-ς-tocopherols
Molecular weight | 430,71 (d-α-tocopherol)
Assay | Content not less than 34 % of total tocopherols
Description | Brownish red to red, clear, viscous oil having a mild, characteristic odour and taste. May show a slight separation of wax-like constituents in microcrystalline form
Identification |
A.By suitable gas liquid chromatographic method | A. | By suitable gas liquid chromatographic method |
A. | By suitable gas liquid chromatographic method
B.Solubility tests | B. | Solubility tests | Insoluble in water. Soluble in ethanol. Miscible in ether
B. | Solubility tests
Purity |
Sulphated ash | Not more than 0,1 %
Specific rotation | [α]D20not less than + 20o
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kg
Heavy metals (as Pb) | Not more than 10 mg/kgE 307 ALPHA-TOCOPHEROL
Synonyms | DL-α-Tocopherol
Definition |
Chemical name | DL-5,7,8-Trimethyltocol
DL-2,5,7,8-tetramethyl-2-(4′,8′,12′-trimethyltridecyl)-6-chromanol
Einecs | 233-466-0
Chemical formula | C29H50O2
Molecular weight | 430,71
Assay | Content not less than 96 %
Description | Slightly yellow to amber, nearly odourless, clear, viscous oil which oxidises and darkens on exposure to air or light
Identification |
A.Solubility tests | A. | Solubility tests | Insoluble in water, freely soluble in ethanol, miscible in ether
A. | Solubility tests
B.Spectro-photometry | B. | Spectro-photometry | In absolute ethanol the maximum absorption is about 292 nm
B. | Spectro-photometry
Purity |
Refractive index | nD201,503 -1,507
Specific absorptionin ethanol | (292 nm) 72-76(0,01 g in 200 ml of absolute ethanol)
Sulphated ash | Not more than 0,1 %
Specific rotation | [α]D250o±0,05o(1 in 10 solution in chloroform)
Lead | Not more than 2 mg/kgE 308 GAMMA-TOCOPHEROL
Synonyms | dl-γ-Tocopherol
Definition |
Chemical name | 2,7,8-trimethyl-2-(4′,8′,12′-trimethyltridecyl)-6-chromanol
Einecs | 231-523-4
Chemical formula | C28H48O2
Molecular weight | 416,69
Assay | Content not less than 97 %
Description | Clear, viscous, pale yellow oil which oxidises and darkens on exposure to air or light
Identification |
A.Spectrometry | A. | Spectrometry | Maximum absorptions in absolute ethanol at about 298 nm and 257 nm
A. | Spectrometry
Purity |
Specific absorptionin ethanol | (298 nm) between 91 and 97
(257 nm) between 5,0 and 8,0
Refractive index | 1,503 -1,507
Sulphated ash | Not more than 0,1 %
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kg
Heavy metals (as Pb) | Not more than 10 mg/kgE 309 DELTA-TOCOPHEROL
Definition |
Chemical name | 2,8-dimethyl-2-(4′,8′,12′-trimethyltridecyl)-6-chromanol
Einecs | 204-299-0
Chemical formula | C27H46O2
Molecular weight | 402,7
Assay | Content not less than 97 %
Description | Clear, viscous, pale yellowish or orange oil which oxidises and darkens on exposure to air or light
Identification |
A.Spectrometry | A. | Spectrometry | Maximum absorptions in absolute ethanol at about 298 nm and 257 nm
A. | Spectrometry
Purity |
Specific absorptionin ethanol | (298 nm) between 89 and 95
(257 nm) between 3,0 and 6,0
Refractive index | 1,500 -1,504
Sulphated ash | Not more than 0,1 %
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kg
Heavy metals (as Pb) | Not more than 10 mg/kgE 310 PROPYL GALLATE
Definition |
Chemical name | Propyl gallate
Propyl ester of gallic acid
n-propyl ester of 3,4,5-trihydroxybenzoic acid
Einecs | 204-498-2
Chemical formula | C10H12O5
Molecular weight | 212,20
Assay | Content not less than 98 % on the anhydrous basis
Description | White to creamy-white, crystalline, odourless solid
Identification |
A.Solubility tests | A. | Solubility tests | Slightly soluble in water, freely soluble in ethanol, ether and propane-1,2-diol
A. | Solubility tests
B.Melting range | B. | Melting range | Between 146oC and 150oC after drying at 110oC for four hours
B. | Melting range
Purity |
Loss on drying | Not more than 1,0 % (110oC, four hours)
Sulphated ash | Not more than 0,1 %
Free acid | Not more than 0,5 % (as gallic acid)
Chlorinated organic compound | Not more than 100 mg/kg (as C1)
Specific absorptionin ethanol | (275 nm) not less than 485 and not more than 520
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kg
Heavy metals (as Pb) | Not more than 10 mg/kgE 311 OCTYL GALLATE
Definition |
Chemical name | Octyl gallate
Octyl ester of gallic acid
n-octyl ester of 3,4,5-trihydroxybenzoic acid
Einecs | 213-853-0
Chemical formula | C15H22O5
Molecular weight | 282,34
Assay | Content not less than 98 % after drying at 90oC for six hours
Description | White to creamy-white odourless solid
Identification |
A.Solubility tests | A. | Solubility tests | Insoluble in water, freely soluble in ethanol, ether and propane-1,2-diol
A. | Solubility tests
B.Melting range | B. | Melting range | Between 99oC and 102oC after drying at 90oC for six hours
B. | Melting range
Purity |
Loss on drying | Not more than 0,5 % (90oC, six hours)
Sulphated ash | Not more than 0,05 %
Free acid | Not more than 0,5 % (as gallic acid)
Chlorinated organic compound | Not more than 100 mg/kg (as C1)
Specific absorptionin ethanol | (275 nm) not less than 375 and not more than 390
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kg
Heavy metals (as Pb) | Not more than 10 mg/kgE 312 DODECYL GALLATE
Synonyms | Lauryl gallate
Definition |
Chemical name | Dodecyl gallate
n-dodecyl (or lauryl) ester of 3,4,5-trihydroxybenzoic acid
Dodecyl ester of gallic acid
Einecs | 214-620-6
Chemical formula | C19H30O5
Molecular weight | 338,45
Assay | Content not less than 98 % after drying at 90oC for six hours
Description | White or creamy-white odourless solid
Identification |
A.Solubility tests | A. | Solubility tests | Insoluble in water, freely soluble in ethanol and ether
A. | Solubility tests
B.Melting range | B. | Melting range | Between 95oC and 98oC after drying at 90oC for six hours
B. | Melting range
Purity |
Loss on drying | Not more than 0,5 % (90oC, six hours)
Sulphated ash | Not more than 0,05 %
Free acid | Not more than 0,5 % (as gallic acid)
Chlorinated organic compound | Not more than 100 mg/kg (as Cl)
Specific absorptionin ethanol | (275 nm) not less than 300 and not more than 325
Arsenic | Not more than 3 mg/kg
Lead | Not more than 10 mg/kg
Mercury | Not more than 1 mg/kg
Heavy metals (as Pb) | Not more than 30 mg/kgE 315 ERYTHORBIC ACID
Synonyms | Isoascorbic acid
D-Araboascorbic acid
Definition |
Chemical name | D-Erythro-hex-2-enoic acid γ-lactone
Isoascorbic acid
D-Isoascorbic acid
Einecs | 201-928-0
Chemical formula | C6H8O6
Molecular weight | 176,13
Assay | Content not less than 98 % on the anhydrous basis
Description | White to slightly yellow crystalline solid which darkens gradually on exposure to light
Identification |
A.Melting range | A. | Melting range | About 164oC to 172oC with decomposition
A. | Melting range
B.Positive test for ascorbic acid/colour reaction | B. | Positive test for ascorbic acid/colour reaction |
B. | Positive test for ascorbic acid/colour reaction
Purity |
Loss on drying | Not more than 0,4 % after drying under reduced pressure on silica gel for 3 hours
Sulphated ash | Not more than 0,3 %
Specific rotation | [α]10 % (w/v) aqueous solution between -16,5oto -18,0o
Oxalate | To a solution of 1 g in 10 ml of water add 2 drops of glacial acetic acid and 5 ml of 10 % calcium acetate solution. The solution should remain clear
Lead | Not more than 2 mg/kgE 316 SODIUM ERYTHORBATE
Synonyms | Sodium isoascorbate
Definition |
Chemical name | Sodium isoascorbate
Sodium D-isoascorbic acid
Sodium salt of 2,3-didehydro-D-erythro-hexono-1,4-lactone
3-keto-D-gulofurano-lactone sodium enolate monohydrate
Einecs | 228-973-9
Chemical formula | C6H7O6Na· H2O
Molecular weight | 216,13
Assay | Content not less than 98 % after drying in a vacuum desiccator over sulphuric acid for 24 hours expressed on the monohydrate basis
Description | White crystalline solid
Identification |
A.Solubility tests | A. | Solubility tests | Freely soluble in water, very slightly soluble in ethanol
A. | Solubility tests
B.Positive test for ascorbic acid/colour reaction | B. | Positive test for ascorbic acid/colour reaction |
B. | Positive test for ascorbic acid/colour reaction
C.Positive test for sodium | C. | Positive test for sodium |
C. | Positive test for sodium
Purity |
Loss on drying | Not more than 0,25 % after drying in a vacuum desiccator over sulphuric acid for 24 hours
Specific rotation | [α]10 % (w/v) aqueous solution between + 95oand + 98o
pH of a 10 % aqueous solution | 5,5 to 8,0
Oxalate | To a solution of 1 g in 10 ml of water add 2 drops of glacial acetic acid and 5 ml of 10 % calcium acetate solution. The solution should remain clear
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kg
Heavy metals (as Pb) | Not more than 10 mg/kgE 319 TERTIARY-BUTYLHYDROQUINONE (TBHQ)
Synonyms | TBHQ
Definition |
Chemical names | Tert-butyl-1,4-benzenediol
2-(1,1-Dimethylethyl)-1,4-benzenediol
Einecs | 217-752-2
Chemical formula | C10H14O2
Molecular weight | 166,22
Assay | Content not less than 99 % of C10H14O2
Description | White crystalline solid having a characteristic odour
Identification |
A.Solubility | A. | Solubility | Practically insoluble in water; soluble in ethanol
A. | Solubility
B.Melting point | B. | Melting point | Not less than 126,5oC
B. | Melting point
C.Phenolics | C. | Phenolics | Dissolve about 5 mg of the sample in 10 ml of methanol and add 10,5 ml of dimethylamine solution (1 in 4). A red to pink colour is produced
C. | Phenolics
Purity |
Tertiary-Butyl-p-benzoquinone | Not more than 0,2 %
2,5-Di-tertiary-butyl hydroquinone | Not more than 0,2 %
Hydroxyquinone | Not more than 0,1 %
Toluene | Not more than 25 mg/kg
Lead | Not more than 2 mg/kgE 320 BUTYLATED HYDROXYANISOLE (BHA)
Synonyms | BHA
Definition |
Chemical names | 3-Tertiary-butyl-4-hydroxyanisole
A mixture of 2-tertiary-butyl-4-hydroxyanisole and 3-tertiary-butyl-4-hydroxyanisole
Einecs | 246-563-8
Chemical formula | C11H16O2
Formula weight | 180,25
Assay | Content not less than 98,5 % of C11H16O2and not less than 85 % of 3-tertiary-butyl-4-hydroxyanisole isomer
Description | White or slightly yellow crystals or waxy solid with a slight aromatic smell
Identification |
A.Solubility | A. | Solubility | Insoluble in water, freely soluble in ethanol
A. | Solubility
B.Melting range | B. | Melting range | Between 48 °C and 63 °C
B. | Melting range
C.Colour reaction | C. | Colour reaction | Passes test for phenol groups
C. | Colour reaction
Purity |
Sulphated ash | Not more than 0,05 % after calcination at 800 ± 25 °C
Phenolic impurities | Not more than 0,5 %
Specific absorption | (290 nm) not less than 190 and not more than 210
Specific absorption | (228 nm) not less than 326 and not more than 345
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kgE 321 BUTYLATED HYDROXYTOLUENE (BHT)
Synonyms | BHT
Definition |
Chemical name | 2,6-Ditertiary-butyl-p-cresol
4-Methyl-2,6-ditertiarybutylphenol
Einecs | 204-881-4
Chemical formula | C15H24O
Molecular weight | 220,36
Assay | Content not less than 99 %
Description | White, crystalline or flaked solid, odourless or having a characteristic faint aromatic odour
Identification |
A.Solubility tests | A. | Solubility tests | Insoluble in water and propane- 1,2-diol
A. | Solubility tests
Freely soluble in ethanol
B.Melting point | B. | Melting point | At 70oC
B. | Melting point
C.Absorbance maximum | C. | Absorbance maximum | The absorption in the range 230 to 320 nm of a 2 cm layer of a 1 in 100 000 solution in dehydrated ethanol exhibits a maximum only at 278 nm
C. | Absorbance maximum
Purity |
Sulphated ash | Not more than 0,005 %
Phenolic impurities | Not more than 0,5 %
Specific absorptionin ethanol | (278 nm) not less than 81 and not more than 88
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kg
Heavy metals (as Pb) | Not more than 10 mg/kgE 322 LECITHINS
Synonyms | Phosphatides
Phospholipids
Definition | Lecithins are mixtures or fractions of phosphatides obtained by physical procedures from animal or vegetable foodstuffs; they also include hydrolysed products obtained through the use of harmless and appropriate enzymes. The final product must not show any signs of residual enzyme activity The lecithins may be slightly bleached in aqueous medium by means of hydrogen peroxide. This oxidation must not chemically modify the lecithin phosphatides
Einecs | 232-307-2
Assay | —Lecithins: not less than 60,0 % of substances insoluble in acetone | — | Lecithins: not less than 60,0 % of substances insoluble in acetone
— | Lecithins: not less than 60,0 % of substances insoluble in acetone
—Hydrolysed lecithins: not less than 56,0 % of substances insoluble in acetone | — | Hydrolysed lecithins: not less than 56,0 % of substances insoluble in acetone
— | Hydrolysed lecithins: not less than 56,0 % of substances insoluble in acetone
Description | —Lecithins: brown liquid or viscous semi-liquid or powder | — | Lecithins: brown liquid or viscous semi-liquid or powder
— | Lecithins: brown liquid or viscous semi-liquid or powder
—Hydrolysed lecithins: light brown to brown viscous liquid or paste | — | Hydrolysed lecithins: light brown to brown viscous liquid or paste
— | Hydrolysed lecithins: light brown to brown viscous liquid or paste
Identification |
A.Positive tests for choline, for phosphorus and fatty acids | A. | Positive tests for choline, for phosphorus and fatty acids |
A. | Positive tests for choline, for phosphorus and fatty acids
B.Test for hydrolysed lecithin | B. | Test for hydrolysed lecithin | To a 800 ml beaker add 500 ml of water (30oC-35oC). Then slowly add 50 ml of the sample with constant stirring. Hydrolysed lecithin will form a homogeneous emulsion. Non-hydrolysed lecithin will form a distinct mass of about 50 g
B. | Test for hydrolysed lecithin
Purity |
Loss on drying | Not more than 2,0 % determined by drying at 105oC for one hour
Toluene-insoluble matter | Not more than 0,3 %
Acid value | —Lecithins: not more than 35 mg of potassium hydroxide per gram | — | Lecithins: not more than 35 mg of potassium hydroxide per gram
— | Lecithins: not more than 35 mg of potassium hydroxide per gram
—Hydrolysed lecithins: not more than 45 mg of potassium hydroxide per gram | — | Hydrolysed lecithins: not more than 45 mg of potassium hydroxide per gram
— | Hydrolysed lecithins: not more than 45 mg of potassium hydroxide per gram
Peroxide value | Equal to or less than 10
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kg
Heavy metals (as Pb) | Not more than 10 mg/kgE 325 SODIUM LACTATE
Definition |
Chemical name | Sodium lactate
Sodium 2-hydroxypropanoate
Einecs | 200-772-0
Chemical formula | C3H5NaO3
Molecular weight | 112,06 (anhydrous)
Assay | Content not less than 57 % and not more than 66 %
Description | Colourless, transparent, liquid. Odourless, or with a slight, characteristic odour
Identification |
A.Positive test for lactate | A. | Positive test for lactate |
A. | Positive test for lactate
B.Positive test for sodium | B. | Positive test for sodium |
B. | Positive test for sodium
Purity |
Acidity | Not more than 0,5 % after drying expressed as lactic acid
pH of a 20 % aqueous solution | 6,5 to 7,5
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kg
Heavy metals (as Pb) | Not more than 10 mg/kg
Reducing substances | No reduction of Fehling’s solution
Note:This specification refers to a 60 % aqueous solution | E 326 POTASSIUM LACTATE
Definition |
Cheminal name | Potassium lactate
Potassium 2-hydroxypropanoate
Einecs | 213-631-3
Chemical formula | C3H5O3K
Molecular weight | 128,17 (anhydrous)
Assay | Content not less than 57 % and not more than 66 %
Description | Slightly viscous, almost odourless clear liquid. Odourless, or with a slight, characteristic odour
Identification |
A.Ignition | A. | Ignition | Ignite potassium lactate solution to an ash. The ash is alkaline, and an effervescence occurs when acid is added
A. | Ignition
B.Colour reaction | B. | Colour reaction | Overlay 2 ml of potassium lactate solution on 5 ml of a 1 in 100 solution of catechol in sulphuric acid. A deep red colour is produced at the zone of contact
B. | Colour reaction
C.Positive tests for potassium and for lactate | C. | Positive tests for potassium and for lactate |
C. | Positive tests for potassium and for lactate
Purity |
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kg
Heavy metals (as Pb) | Not more than 10 mg/kg
Acidity | Dissolve 1 g of potassium lactate solution in 20 ml of water, add 3 drops of phenolphthalein TS and titrate with 0,1 N sodium hydroxide. Not more than 0,2 ml should be required
Reducing substances | Potassium lactate solution shall not cause any reduction of Fehling’s solution
Note:This specification refers to a 60 % aqueous solution | E 327 CALCIUM LACTATE
Definition |
Chemical name | Calcium dilactate
Calcium dilactate hydrate
2-Hydroxypropanoic acid calcium salt
Einecs | 212-406-7
Chemical formula | (C3H5O2)2Ca· nH2O (n = 0-5)
Molecular weight | 218,22 (anhydrous)
Assay | Content not less than 98 % on the anhydrous basis
Description | Almost odourless, white crystalline powder or granules
Identification |
A.Positive tests for lactate and for calcium | A. | Positive tests for lactate and for calcium |
A. | Positive tests for lactate and for calcium
B.Solubility tests | B. | Solubility tests | Soluble in water and practically insoluble in ethanol
B. | Solubility tests
Purity |
Loss on drying | Determined by drying at 120oC for four hours:
—anhydrous: not more than 3,0 % | — | anhydrous: not more than 3,0 %
— | anhydrous: not more than 3,0 %
—with 1 molecule of water: not more than 8,0 % | — | with 1 molecule of water: not more than 8,0 %
— | with 1 molecule of water: not more than 8,0 %
—with 3 molecules of water: not more than 20,0 % | — | with 3 molecules of water: not more than 20,0 %
— | with 3 molecules of water: not more than 20,0 %
—with 4,5 molecules of water: not more than 27,0 % | — | with 4,5 molecules of water: not more than 27,0 %
— | with 4,5 molecules of water: not more than 27,0 %
Acidity | Not more than 0,5 % of the dry matter expressed as lactic acid
Fluoride | Not more than 30 mg/kg (expressed as fluorine)
pH of a 5 % solution | Between 6,0 and 8,0
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kg
Heavy metals (as Pb) | Not more than 10 mg/kg
Reducing substances | No reduction of Fehling’s solutionE 330 CITRIC ACID
Definition |
Chemical name | Citric acid
2-Hydroxy-1,2,3-propanetricarboxylic acid
β-Hydroxytricarballytic acid
Einecs | 201-069-1
Chemical formula | (a)C6H8O7(anhydrous) | (a) | C6H8O7(anhydrous)
(a) | C6H8O7(anhydrous)
(b)C6H8O7·H2O (monohydrate) | (b) | C6H8O7·H2O (monohydrate)
(b) | C6H8O7·H2O (monohydrate)
Molecular weight | (a)192,13 (anhydrous) | (a) | 192,13 (anhydrous)
(a) | 192,13 (anhydrous)
(b)210,15 (monohydrate) | (b) | 210,15 (monohydrate)
(b) | 210,15 (monohydrate)
Assay | Citric acid may be anhydrous or it may contain 1 molecule of water. Citric acid contains not less than 99,5 % of C6H8O7, calculated on the anhydrous basis
Description | Citric acid is a white or colourless, odourless, crystalline solid, having a strongly acid taste. The monohydrate effloresces in dry air
Identification |
A.Solubility tests | A. | Solubility tests | Very soluble in water; freely soluble in ethanol; soluble in ether
A. | Solubility tests
Purity |
Water content | Anhydrous citric acid contains not more than 0,5 % water; citric acid monohydrate contains not more than 8,8 % water (Karl Fischer method)
Sulphated ash | Not more than 0,05 % after calcination at 800 ± 25oC
Arsenic | Not more than 1 mg/kg
Lead | Not more than 1 mg/kg
Mercury | Not more than 1 mg/kg
Heavy metals (as Pb) | Not more than 5 mg/kg
Oxalates | Not more than 100 mg/kg, expressed as oxalic acid, after drying
Readily carbonisable substances | Heat 1 g of powdered sample with 10 ml of 98 % minimum sulphuric acid in a water bath at 90oC in the dark for one hour. Not more than a pale brown colour should be produced (Matching Fluid K)E 331 (i) MONOSODIUM CITRATE
Synonyms | Monosodium citrateMonobasic sodium citrate
Definition |
Chemical name | Monosodium citrate
Monosodium salt of 2-hydroxy-1,2,3-propanetricarboxylic acid
Chemical formula | (a)C6H7O7Na (anhydrous) | (a) | C6H7O7Na (anhydrous)
(a) | C6H7O7Na (anhydrous)
(b)C6H7O7Na· H2O (monohydrate) | (b) | C6H7O7Na· H2O (monohydrate)
(b) | C6H7O7Na· H2O (monohydrate)
Molecular weight | (a)214,11 (anhydrous) | (a) | 214,11 (anhydrous)
(a) | 214,11 (anhydrous)
(b)232,23 (monohydrate) | (b) | 232,23 (monohydrate)
(b) | 232,23 (monohydrate)
Assay | Content not less than 99 % on the anhydrous basis
Description | Crystalline white powder or colourless crystals
Identification |
A.Positive tests for citrate and for sodium | A. | Positive tests for citrate and for sodium |
A. | Positive tests for citrate and for sodium
Purity |
Loss on drying | Determined by drying at 180oC for four hours:—anhydrous: not more than 1,0 % | — | anhydrous: not more than 1,0 %
— | anhydrous: not more than 1,0 %
—monohydrate: not more than 8,8 % | — | monohydrate: not more than 8,8 %
— | monohydrate: not more than 8,8 %
Oxalates | Not more than 100 mg/kg expressed as oxalic acid, after drying
pH of a 1 % aqueous solution | Between 3,5 and 3,8
Arsenic | Not more than 1 mg/kg
Lead | Not more than 1 mg/kg
Mercury | Not more than 1 mg/kg
Heavy metals (as Pb) | Not more than 5 mg/kgE 331 (ii) DISODIUM CITRATE
Synonyms | Disodium citrateDibasic sodium citrate
Definition |
Chemical name | Disodium citrate
Disodium salt of 2-hydroxy-1,2,3-propanetricarboxylic acid
Disodium salt of citric acid with 1,5 molecules of water
Einecs | 205-623-3
Chemical formula | C6H6O7Na2·1,5H2O
Molecular weight | 263,11
Assay | Content not less than 99 % on the anhydrous basis
Description | Crystalline white powder or colourless crystals
Identification |
A.Positive tests for citrate and for sodium | A. | Positive tests for citrate and for sodium |
A. | Positive tests for citrate and for sodium
Purity |
Loss on drying | Not more than 13,0 % by drying at 180oC for four hours
Oxalates | Not more than 100 mg/kg expressed as oxalic acid, after drying
pH of a 1 % aqueous solution | Between 4,9 and 5,2
Arsenic | Not more than 1 mg/kg
Lead | Not more than 1 mg/kg
Mercury | Not more than 1 mg/kg
Heavy metals (as Pb) | Not more than 5 mg/kgE 331 (iii) TRISODIUM CITRATE
Synonyms | Trisodium citrateTribasic sodium citrate
Definition |
Chemical name | Trisodium citrate
Trisodium salt of 2-hydroxy-1,2,3-propanetricarboxylic acid
Trisodium salt of citric acid, in anhydrous, dihydrate or pentahydrate form
Einecs | 200-675-3
Chemical formula | Anhydrous: | C6H5O7Na3
Hydrated: | C6H5O7Na3·nH2O (n = 2 or 5)
Molecular weight | 258,07 (anhydrous)
Assay | Not less than 99 % on the anhydrous basis
Description | Crystalline white powder or colourless crystals
Identification |
A.Positive tests for citrate and for sodium | A. | Positive tests for citrate and for sodium |
A. | Positive tests for citrate and for sodium
Purity |
Loss on drying | Determined by drying at 180oC for four hours:
—anhydrous: | — | anhydrous: | not more than 1,0 %
— | anhydrous:
—dihydrate: | — | dihydrate: | not more than 13,5 %
— | dihydrate:
—pentahydrate: | — | pentahydrate: | not more than 30,3 %
— | pentahydrate:
Oxalates | Not more than 100 mg/kg expressed as oxalic acid, after drying
pH of a 5 % aqueous solution | Between 7,5 and 9,0
Arsenic | Not more than 1 mg/kg
Lead | Not more than 1 mg/kg
Mercury | Not more than 1 mg/kg
Heavy metals (as Pb) | Not more than 5 mg/kgE 332 (i) MONOPOTASSIUM CITRATE
Synonyms | Monopotassium citrateMonobasic potassium citrate
Definition |
Chemical name | Monopotassium citrate
Monopotassium salt of 2-hydroxy-1,2,3-propanetricarboxylic acid
Anhydrous monopotassium salt of citric acid
Einecs | 212-753-4
Chemical formula | C6H7O7K
Molecular weight | 230,21
Assay | Content not less than 99 % on the anhydrous basis
Description | White, hygroscopic, granular powder or transparent crystals
Identification |
A.Positive tests for citrate and for potassium | A. | Positive tests for citrate and for potassium |
A. | Positive tests for citrate and for potassium
Purity |
Loss on drying | Not more than 1,0 % determined by drying at 180oC for four hours
Oxalates | Not more than 100 mg/kg expressed as oxalic acid, after drying
pH of a 1 % aqueous solution | Between 3,5 and 3,8
Arsenic | Not more than 1 mg/kg
Lead | Not more than 1 mg/kg
Mercury | Not more than 1 mg/kg
Heavy metals (as Pb) | Not more than 5 mg/kgE 332 (ii) TRIPOTASSIUM CITRATE
Synonyms | Tripotassium citrateTribasic potassium citrate
Definition |
Chemical name | Tripotassium citrate
Tripotassium salt of 2-hydroxy-1,2,3-propanetricarboxylic acid
Monohydrated tripotassium salt of citric acid
Einecs | 212-755-5
Chemical formula | C6H5O7K3·H2O
Molecular weight | 324,42
Assay | Content not less than 99 % on the anhydrous basis
Description | White, hygroscopic, granular powder or transparent crystals
Identification |
A.Positive tests for citrate and for potassium | A. | Positive tests for citrate and for potassium |
A. | Positive tests for citrate and for potassium
Purity |
Loss on drying | Not more than 6,0 % determined by drying at 180oC for four hours
Oxalates | Not more than 100 mg/kg expressed as oxalic acid, after drying
pH of a 5 % aqueous solution | Between 7,5 and 9,0
Arsenic | Not more than 1 mg/kg
Lead | Not more than 1 mg/kg
Mercury | Not more than 1 mg/kg
Heavy metals (as Pb) | Not more than 5 mg/kgE 333 (i) MONOCALCIUM CITRATE
Synonyms | Monocalcium citrateMonobasic calcium citrate
Definition |
Chemical name | Monocalcium citrate
Monocalcium salt of 2-hydroxy-1,2,3-propanetricarboxylic acid
Monohydrate monocalcium salt of citric acid
Chemical formula | (C6H7O7)2Ca· H2O
Molecular weight | 440,32
Assay | Content not less than 97,5 % on the anhydrous basis
Description | Fine white powder
Identification |
A.Positive tests for citrate and for calcium | A. | Positive tests for citrate and for calcium |
A. | Positive tests for citrate and for calcium
Purity |
Loss on drying | Not more than 7,0 % determined by drying at 180oC for four hours
Oxalates | Not more than 100 mg/kg expressed as oxalic acid, after drying
pH of a 1 % aqueous solution | Between 3,2 and 3,5
Fluoride | Not more than 30 mg/kg (expressed as fluorine)
Arsenic | Not more than 1 mg/kg
Lead | Not more than 1 mg/kg
Mercury | Not more than 1 mg/kg
Heavy metals (as Pb) | Not more than 5 mg/kg
Carbonates | Dissolving 1 g of calcium citrate in 10 ml 2 N hydrochloric acid must not liberate more than a few isolated bubblesE 333 (ii) DICALCIUM CITRATE
Synonyms | Dicalcium citrateDibasic calcium citrate
Definition |
Chemical name | Dicalcium citrate
Dicalcium salt of 2-hydroxy-1,2,3-propanetricarboxylic acid
Trihydrated dicalcium salt of citric acid
Chemical formula | (C6H7O7)2Ca2·3H2O
Molecular weight | 530,42
Assay | Not less than 97,5 % on the anhydrous basis
Description | Fine white powder
Identification |
A.Positive tests for citrate and for calcium | A. | Positive tests for citrate and for calcium |
A. | Positive tests for citrate and for calcium
Purity |
Loss on drying | Not more than 20,0 % determined by drying at 180oC for four hours
Oxalates | Not more than 100 mg/kg expressed as oxalic acid, after drying
Fluoride | Not more than 30 mg/kg (expressed as fluorine)
Arsenic | Not more than 1 mg/kg
Lead | Not more than 1 mg/kg
Mercury | Not more than 1 mg/kg
Heavy metals (as Pb) | Not more than 5 mg/kg
Carbonates | Dissolving 1 g of calcium citrate in 10 ml 2 N hydrochloric acid must not liberate more than a few isolated bubblesE 333 (iii) TRICALCIUM CITRATE
Synonyms | Tricalcium citrateTribasic calcium citrate
Definition |
Chemical name | Tricalcium citrate
Tricalcium salt of 2-hydroxy-1,2,3-propanetricarboxylic acid
Tetrahydrated tricalcium salt of citric acid
Einecs | 212-391-7
Chemical formula | (C6H6O7)2Ca3·4H2O
Molecular weight | 570,51
Assay | Not less than 97,5 % on the anhydrous basis
Description | Fine white powder
Identification |
A.Positive tests for citrate and for calcium | A. | Positive tests for citrate and for calcium |
A. | Positive tests for citrate and for calcium
Purity |
Loss on drying | Not more than 14,0 % determined by drying at 180oC for four hours
Oxalates | Not more than 100 mg/kg expressed as oxalic acid, after drying
Fluoride | Not more than 30 mg/kg (expressed as fluorine)
Arsenic | Not more than 1 mg/kg
Lead | Not more than 1 mg/kg
Mercury | Not more than 1 mg/kg
Heavy metals (as Pb) | Not more than 5 mg/kg
Carbonates | Dissolving 1 g of calcium citrate in 10 ml 2 N hydrochloric acid must not liberate more than a few isolated bubblesE 334 L(+)-TARTARIC ACID
Definition |
Chemical name | L-tartaric acid
L-2,3-dihydroxybutanedioic acid
d-α, β-dihydroxysuccinic acid
Einecs | 201-766-0
Chemical formula | C4H6O6
Molecular weight | 150,09
Assay | Content not less than 99,5 % on the anhydrous basis
Description | Colourless or translucent crystalline solid or white crystalline powder
Identification |
A.Melting range | A. | Melting range | Between 168oC and 170oC
A. | Melting range
B.Positive test for tartrate | B. | Positive test for tartrate |
B. | Positive test for tartrate
Purity |
Loss on drying | Not more than 0,5 % (over P2O5, three hours)
Sulphated ash | Not more than 1 000 mg/kg after calcination at 800 ± 25oC
Specific optical rotation of a 20 % w/v aqueous solution | [α]20Dbetween +11,5oand +13,5o
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kg
Heavy metals (as Pb) | Not more than 10 mg/kg
Oxalates | Not more than 100 mg/kg expressed as oxalic acid, after dryingE 335 (i) MONOSODIUM TARTRATE
Synonyms | Monosodium salt of L-(+)-tartaric acid
Definition |
Chemical name | Monosodium salt of L-2,3-dihydroxybutanedioic acid
Monohydrated monosodium salt of L-(+)-tartaric acid
Chemical formula | C4H5O6Na· H2O
Molecular weight | 194,05
Assay | Content not less than 99 % on the anhydrous basis
Description | Transparent colourless crystals
Identification |
A.Positive tests for tartrate and for sodium | A. | Positive tests for tartrate and for sodium |
A. | Positive tests for tartrate and for sodium
Purity |
Loss on drying | Not more than 10,0 % determined by drying at 105oC for four hours
Oxalates | Not more than 100 mg/kg expressed as oxalic acid, after drying
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kg
Heavy metals (as Pb) | Not more than 10 mg/kgE 335 (ii) DISODIUM TARTRATE
Definition |
Chemical name | Disodium L-tartrate
Disodium (+)-tartrate
Disodium (+)-2,3-dihydroxybutanedioic acid
Dihydrated disodium salt of L-(+)-tartaric acid
Einecs | 212-773-3
Chemical formula | C4H4O6Na2·2H2O
Molecular weight | 230,8
Assay | Content not less than 99 % on the anhydrous basis
Description | Transparent, colourless crystals
Identification |
A.Positive tests for tartrate and for sodium | A. | Positive tests for tartrate and for sodium |
A. | Positive tests for tartrate and for sodium
B.Solubility tests | B. | Solubility tests | 1 gram is insoluble in 3 ml of water. Insoluble in ethanol
B. | Solubility tests
Purity |
Loss on drying | Not more than 17,0 % determined by drying at 150oC for four hours
Oxalates | Not more than 100 mg/kg expressed as oxalic acid, after drying
pH of a 1 % aqueous solution | Between 7,0 and 7,5
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kg
Heavy metals (as Pb) | Not more than 10 mg/kgE 336 (i) MONOPOTASSIUM TARTRATE
Synonyms | Monobasic potassium tartrate
Definition |
Chemical name | Anhydrous monopotassium salt of L-(+)-tartaric acid
Monopotassium salt of L-2,3-dihydroxybutanedioic acid
Chemical formula | C4H5O6K
Molecular weight | 188,16
Assay | Content not less than 98 % on the anhydrous basis
Description | White crystalline or granulated powder
Identification |
A.Positive tests for tartrate and for potassium | A. | Positive tests for tartrate and for potassium |
A. | Positive tests for tartrate and for potassium
B.Melting point | B. | Melting point | 230oC
B. | Melting point
Purity |
pH of a 1 % aqueous solution | 3,4
Loss on drying | Not more than 1,0 % determined by drying at 105oC for four hours
Oxalates | Not more than 100 mg/kg expressed as oxalic acid, after drying
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kg
Heavy metals (as Pb) | Not more than 10 mg/kgE 336 (ii) DIPOTASSIUM TARTRATE
Synonyms | Dibasic potassium tartrate
Definition |
Chemical name | Dipotassium salt of L-2,3-dihydroxybutanedioic acid
Dipotassium salt with half a molecule of water of L-(+)-tartaric acid
Einecs | 213-067-8
Chemical formula | C4H4O6K2·1/2H2O
Molecular weight | 235,2
Assay | Content not less than 99 % on the anhydrous basis
Description | White crystalline or granulated powder
Identification |
A.Positive tests for tartrate and for potassium | A. | Positive tests for tartrate and for potassium |
A. | Positive tests for tartrate and for potassium
Purity |
pH of a 1 % aqueous solution | Between 7,0 and 9,0
Loss on drying | Not more than 4,0 % determined by drying at 150oC for four hours
Oxalates | Not more than 100 mg/kg expressed as oxalic acid, after drying
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kg
Heavy metals (as Pb) | Not more than 10 mg/kgE 337 POTASSIUM SODIUM TARTRATE
Synonyms | Potassium sodium L-(+)-tartrate
Rochelle salt
Seignette salt
Definition |
Chemical name | Potassium sodium salt of L-2,3-dihydroxybutanedioic acid
Potassium sodium L-(+)-tartrate
Einecs | 206-156-8
Chemical formula | C4H4O6KNa· 4H2O
Molecular weight | 282,23
Assay | Content not less than 99 % on the anhydrous basis
Description | Colourless crystals or white crystalline powder
Identification |
A.Positive tests for tartrate, for potassium and for sodium | A. | Positive tests for tartrate, for potassium and for sodium |
A. | Positive tests for tartrate, for potassium and for sodium
B.Solubility tests | B. | Solubility tests | 1 gram is soluble in 1 ml of water, insoluble in ethanol
B. | Solubility tests
C.Melting range | C. | Melting range | Between 70 and 80oC
C. | Melting range
Purity |
Loss on drying | Not more than 26,0 % and not less than 21,0 % determined by drying at 150oC for three hours
Oxalates | Not more than 100 mg/kg expressed as oxalic acid, after drying
pH of 1 % aqueous solution | Between 6,5 and 8,5
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kg
Heavy metals (as Pb) | Not more than 10 mg/kgE 338 PHOSPHORIC ACID
Synonyms | Orthophosphoric acid
Monophosphoric acid
Definition |
Chemical name | Phosphoric acid
Einecs | 231-633-2
Chemical formula | H3PO4
Molecular weight | 98,00
Assay | Phosphoric acid is commercially available as an aqueous solution at variable concentrations. Content not less than 67,0 % and not more than 85,7 %.
Description | Clear, colourless, viscous liquid
Identification |
A.Positive tests for acid and for phosphate | A. | Positive tests for acid and for phosphate |
A. | Positive tests for acid and for phosphate
Purity |
Volatile acids | Not more than 10 mg/kg (as acetic acid)
Chlorides | Not more than 200 mg/kg (expressed as chlorine)
Nitrates | Not more than 5 mg/kg (as NaNO3)
Sulphates | Not more than 1 500 mg/kg (as CaSO4)
Fluoride | Not more than 10 mg/kg (expressed as fluorine)
Arsenic | Not more than 3 mg/kg
Cadmium | Not more than 1 mg/kg
Lead | Not more than 4 mg/kg
Mercury | Not more than 1 mg/kg
Note:This specification refers to a 75 % aqueous solution | E 339 (i) MONOSODIUM PHOSPHATE
Synonyms | Monosodium monophosphate
Acid monosodium monophosphate
Monosodium orthophosphate
Monobasic sodium phosphate
Sodium dihydrogen monophosphate
Definition |
Chemical name | Sodium dihydrogen monophosphate
Einecs | 231-449-2
Chemical formula | Anhydrous: NaH2PO4
Monohydrate: NaH2PO4· H2O
Dihydrate: NaH2PO4· 2H2O
Molecular weight | Anhydrous: 119,98
Monohydrate: 138,00
Dihydrate: 156,01
Assay | After drying at 60oC for one hour and then at 105oC for four hours, contains not less than 97 % of NaH2PO4
P2O5content | Between 58,0 % and 60,0 % on the anhydrous basis
Description | A white odourless, slightly deliquescent powder, crystals or granules
Identification |
A.Positive tests for sodium and for phosphate | A. | Positive tests for sodium and for phosphate |
A. | Positive tests for sodium and for phosphate
B.Solubility | B. | Solubility | Freely soluble in water. Insoluble in ethanol or ether
B. | Solubility
C.pH of a 1 % solution | C. | pH of a 1 % solution | Between 4,1 and 5,0
C. | pH of a 1 % solution
Purity |
Loss on drying | The anhydrous salt loses not more than 2,0 %, the monohydrate not more than 15,0 %, and the dihydrate not more than 25 % when dried first at 60oC for one hour, then at 105oC for four hours
Water-insoluble substances | Not more than 0,2 % on the anhydrous basis
Fluoride | Not more than 10 mg/kg (expressed as fluorine)
Arsenic | Not more than 3 mg/kg
Cadmium | Not more than 1 mg/kg
Lead | Not more than 4 mg/kg
Mercury | Not more than 1 mg/kgE 339 (ii) DISODIUM PHOSPHATE
Synonyms | Disodium monophosphate
Secondary sodium phosphate
Disodium orthophosphate
Acid disodium phosphate
Definition |
Chemical name | Disodium hydrogen monophosphate
Disodium hydrogen orthophosphate
Einecs | 231-448-7
Chemical formula | Anhydrous: Na2HPO4
Hydrat: Na2HPO4· nH2O (n = 2,7 or 12)
Molecular weight | 141,98 (anhydrous)
Assay | After drying at 40oC for three hours and subsequently at 105oC for five hours, contains not less than 98 % of Na2HPO4
P2O5content | Between 49 % and 51 % on the anhydrous basis
Description | Anhydrous disodium hydrogen phosphate is a white, hygroscopic, odourless powder. Hydrated forms available include the dihydrate: a white crystalline, odourless solid; the heptahydrate: white, odourless, efflorescent crystals or granular powder; and the dodecahydrate: white, efflorescent, odourless powder or crystals
Identification |
A.Positive tests for sodium and for phosphate | A. | Positive tests for sodium and for phosphate |
A. | Positive tests for sodium and for phosphate
B.Solubility | B. | Solubility | Freely soluble in water. Insoluble in ethanol
B. | Solubility
C.pH of a 1 % solution | C. | pH of a 1 % solution | Between 8,4 and 9,6
C. | pH of a 1 % solution
Purity |
Loss on drying | When dried at 40oC for three hours and then at 105oC for five hours, the losses in weight are as follows: anhydrous not more than 5,0 %, dihydrate not more than 22,0 %, heptahydrate not more than 50,0 %, dodecahydrate not more than 61,0 %
Water-insoluble substances | Not more than 0,2 % on the anhydrous basis
Fluoride | Not more than 10 mg/kg (expressed as fluorine)
Arsenic | Not more than 3 mg/kg
Cadmium | Not more than 1 mg/kg
Lead | Not more than 4 mg/kg
Mercury | Not more than 1 mg/kgE 339 (iii) TRISODIUM PHOSPHATE
Synonyms | Sodium phosphate
Tribasic sodium phosphate
Trisodium orthophosphate
Definition | Trisodium phosphate is obtained from aqueous solutions and crystallises in the anhydrous form and with 1/2, 1, 6, 8 or 12 H2O. The dodecahydrate always crystallises from aqueous solutions with an excess of sodium hydroxide. It contains 1/4 molecule of NaOH
Chemical name | Trisodium monophosphate
Trisodium phosphate
Trisodium orthophosphate
Einecs | 231-509-8
Chemical formula | Anhydrous: Na3PO4
Hydrated: Na3PO4· nH2O (n = 1/2, 1, 6, 8, or 12)
Molecular weight | 163,94 (anhydrous)
Assay | Sodium phosphate anhydrous and the hydrated forms, with the exception of the dodecahydrate, contain not less than 97,0 % of Na3PO4calculated on the dried basis. Sodium phosphate dodecahydrate contains not less than 92,0 % of Na3PO4calculated on the ignited basis
P2O5content | Between 40,5 % and 43,5 % on the anhydrous basis
Description | White odourless crystals, granules or crystalline powder
Identification |
A.Positive tests for sodium and for phosphate | A. | Positive tests for sodium and for phosphate |
A. | Positive tests for sodium and for phosphate
B.Solubility | B. | Solubility | Freely soluble in water. Insoluble in ethanol
B. | Solubility
C.pH of a 1 % solution | C. | pH of a 1 % solution | Between 11,5 and 12,5
C. | pH of a 1 % solution
Purity |
Loss on ignition | When dried at 120oC for two hours and then ignited at about 800oC for 30 minutes, the losses in weight are as follows: anhydrous not more than 2,0 %, monohydrate not more than 11,0 %, dodecahydrate: between 45,0 % and 58,0 %
Water insoluble substances | Not more than 0,2 % on the anhydrous basis
Fluoride | Not more than 10 mg/kg (expressed as fluorine)
Arsenic | Not more than 3 mg/kg
Cadmium | Not more than 1 mg/kg
Lead | Not more than 4 mg/kg
Mercury | Not more than 1 mg/kgE 340 (i) MONOPOTASSIUM PHOSPHATE
Synonyms | Monobasic potassium phosphate
Monopotassium monophosphate
Potassium orthophosphate
Definition |
Chemical name | Potassium dihydrogen phosphate
Monopotassium dihydrogen orthophosphate
Monopotassium dihydrogen monophosphate
Einecs | 231-913-4
Chemical formula | KH2PO4
Molecular weight | 136,09
Assay | Content not less than 98,0 % after drying at 105oC for four hours
P2O5content | Between 51,0 % and 53,0 % on the anhydrous basis
Description | Odourless, colourless crystals or white granular or crystalline powder, hygroscopic
Identification |
A.Positive tests for potassium and for phosphate | A. | Positive tests for potassium and for phosphate |
A. | Positive tests for potassium and for phosphate
B.Solubility | B. | Solubility | Freely soluble in water. Insoluble in ethanol
B. | Solubility
C.pH of a 1 % solution | C. | pH of a 1 % solution | Between 4,2 and 4,8
C. | pH of a 1 % solution
Purity |
Loss on drying | Not more than 2,0 % determined by drying at 105oC for four hours
Water-insoluble substances | Not more than 0,2 % on the anhydrous basis
Fluoride | Not more than 10 mg/kg (expressed as fluorine)
Arsenic | Not more than 3 mg/kg
Cadmium | Not more than 1 mg/kg
Lead | Not more than 4 mg/kg
Mercury | Not more than 1 mg/kgE 340 (ii) DIPOTASSIUM PHOSPHATE
Synonyms | Dipotassium monophosphate
Secondary potassium phosphate
Dipotassium acid phosphate
Dipotassium orthophosphate
Dibasic potassium phosphate
Definition |
Chemical name | Dipotassium hydrogen monophosphate
Dipotassium hydrogen phosphate
Dipotassium hydrogen orthophosphate
Einecs | 231-834-5
Chemical formula | K2HPO4
Molecular weight | 174,18
Assay | Content not less than 98 % after drying at 105oC for four hours
P2O5content | Between 40,3 % and 41,5 % on the anhydrous basis
Description | Colourless or white granular powder, crystals or masses; deliquescent substance
Identification |
A.Positive tests for potassium and for phosphate | A. | Positive tests for potassium and for phosphate |
A. | Positive tests for potassium and for phosphate
B.Solubility | B. | Solubility | Freely soluble in water. Insoluble in ethanol
B. | Solubility
C.pH of a 1 % solution | C. | pH of a 1 % solution | Between 8,7 and 9,4
C. | pH of a 1 % solution
Purity |
Loss on drying | Not more than 2,0 % determined by drying at 105oC for four hours
Water-insoluble substances | Not more than 0,2 % on the anhydrous basis
Fluoride | Not more than 10 mg/kg (expressed as fluorine)
Arsenic | Not more than 3 mg/kg
Cadmium | Not more than 1 mg/kg
Lead | Not more than 4 mg/kg
Mercury | Not more than 1 mg/kgE 340 (iii) TRIPOTASSIUM PHOSPHATE
Synonyms | Potassium phosphate
Tribasic potassium phosphate
Tripotassium orthophosphate
Definition |
Chemical name | Tripotassium monophosphate
Tripotassium phosphate
Tripotassium orthophosphate
Einecs | 231-907-1
Chemical formula | Anhydrous: K3PO4
Hydrated: K3PO4· nH2O (n = 1 or 3)
Molecular weight | 212,27 (anhydrous)
Assay | Content not less than 97 % calculated on the ignited basis
P2O5content | Between 30,5 % and 33,0 % on the ignited basis
Description | Colourless or white, odourless hygroscopic crystals or granules. Hydrated forms available include the monohydrate and trihydrate
Identification |
A.Positive tests for potassium and for phosphate | A. | Positive tests for potassium and for phosphate |
A. | Positive tests for potassium and for phosphate
B.Solubility | B. | Solubility | Freely soluble in water. Insoluble in ethanol
B. | Solubility
C.pH of a 1 % solution | C. | pH of a 1 % solution | Between 11,5 and 12,3
C. | pH of a 1 % solution
Purity |
Loss on ignition | Anhydrous: not more than 3,0 %; hydrated: not more than 23,0 %. Determined by drying at 105oC for one hour and then ignite at about 800oC ± 25oC for 30 minutes
Water insoluble substances | Not more than 0,2 % on the anhydrous basis
Fluoride | Not more than 10 mg/kg (expressed as fluorine)
Arsenic | Not more than 3 mg/kg
Cadmium | Not more than 1 mg/kg
Lead | Not more than 4 mg/kg
Mercury | Not more than 1 mg/kgE 341 (i) MONOCALCIUM PHOSPHATE
Synonyms | Monobasic calcium phosphate
Monocalcium orthophosphate
Definition |
Chemical name | Calcium dihydrogen phosphate
Einecs | 231-837-1
Chemical formula | Anhydrous: Ca(H2PO4)2
Monohydrate: Ca(H2PO4)2· H2O
Molecular weight | 234,05 (anhydrous)
252,08 (monohydrate)
Assay | Content not less than 95 % on the dried basis
P2O5content | Between 55,5 % and 61,1 % on the anhydrous basis
Description | Granular powder or white, deliquescent crystals or granules
Identification |
A.Positive tests for calcium and for phosphate | A. | Positive tests for calcium and for phosphate |
A. | Positive tests for calcium and for phosphate
B.CaO content | B. | CaO content | Between 23,0 % and 27,5 % (anhydrous)
B. | CaO content
Between 19,0 % and 24,8 % (monohydrate)
Purity |
Loss on drying | Not more than 14 % determined by drying at 105oC for four hours (anhydrous)
Not more than 17,5 % determined by drying at 60oC for one hour, then at 105oC for four hours (monohydrate)
Loss on ignition | Not more than 17,5 % after ignition at 800oC ± 25oC for 30 minutes (anhydrous)
Not more than 25,0 % determined by drying at 105oC for one hour, then ignite at 800oC ± 25oC for 30 minutes (monohydrate)
Fluoride | Not more than 30 mg/kg (expressed as fluorine)
Arsenic | Not more than 3 mg/kg
Cadmium | Not more than 1 mg/kg
Lead | Not more than 4 mg/kg
Mercury | Not more than 1 mg/kgE 341 (ii) DICALCIUM PHOSPHATE
Synonyms | Dibasic calcium phosphate
Dicalcium orthophosphate
Definition |
Chemical name | Calcium monohydrogen phosphate
Calcium hydrogen orthophosphate
Secondary calcium phosphate
Einecs | 231-826-1
Chemical formula | Anhydrous: CaHPO4
Dihydrate: CaHPO4· 2H2O
Molecular weight | 136,06 (anhydrous)
172,09 (dihydrate)
Assay | Dicalcium phosphate, after drying at 200oC for three hours, contains not less than 98 % and not more than the equivalent of 102 % of CaHPO4
P2O5content | Between 50,0 % and 52,5 % on the anhydrous basis
Description | White crystals or granules, granular powder or powder
Identification |
A.Positive tests for calcium and for phosphate | A. | Positive tests for calcium and for phosphate |
A. | Positive tests for calcium and for phosphate
B.Solubility tests | B. | Solubility tests | Sparingly soluble in water. Insoluble in ethanol
B. | Solubility tests
Purity |
Loss on ignition | Not more than 8,5 % (anhydrous), or 26,5 % (dihydrate) after ignition at 800oC ± 25oC for 30 minutes
Fluoride | Not more than 50 mg/kg (expressed as fluorine)
Arsenic | Not more than 3 mg/kg
Cadmium | Not more than 1 mg/kg
Lead | Not more than 4 mg/kg
Mercury | Not more than 1 mg/kgE 341 (iii) TRICALCIUM PHOSPHATE
Synonyms | Calcium phosphate, tribasic
Calcium orthophosphate
Pentacalcium hydroxy monophosphate
Calcium hydroxyapatite
Definition | Tricalcium phosphate consists of a variable mixture of calcium phosphates obtained from neutralisation of phosphoric acid with calcium hydroxide and having the approximate composition of 10CaO · 3P2O5· H2O
Chemical name | Pentacalcium hydroxy monophosphate
Tricalcium monophosphate
Einecs | 235-330-6 (Pentacalcium hydroxy monophosphate)
231-840-8 (Calcium orthophosphate)
Chemical formula | Ca5(PO4)3· OH or Ca3(PO4)2
Molecular weight | 502 or 310
Assay | Content not less than 90 % calculated on the ignited basis
P2O5 content | Between 38,5 % and 48,0 % on the anhydrous basis
Description | A white, odourless powder which is stable in air
Identification |
A.Positive tests for calcium and for phosphate | A. | Positive tests for calcium and for phosphate |
A. | Positive tests for calcium and for phosphate
B.Solubility | B. | Solubility | Practically insoluble in water; insoluble in ethanol soluble in dilute hydrochloric and nitric acid
B. | Solubility
Purity |
Loss on ignition | Not more than 8 % after ignition at 800oC ± 25oC, to constant weight
Fluoride | Not more than 50 mg/kg (expressed as fluorine)
Arsenic | Not more than 3 mg/kg
Cadmium | Not more than 1 mg/kg
Lead | Not more than 4 mg/kg
Mercury | Not more than 1 mg/kgE 343(i) MONOMAGNESIUM PHOSPHATE
Synonyms | Magnesiumdihydrogenphosphate
Magnesiumphosphate, monobasic
Monomagnesium orthophosphate
Definition |
Chemical name | Monomagnesiumdihydrogenmonophosphate
Einecs | 236-004-6
Chemical formula | Mg(H2PO4)2· nH2O (where n = 0 to 4)
Molecular weight | 218,30 (anhydrous)
Assay | Not less than 51,0 % after ignition
Description | White, odourless, crystalline powder, slightly soluble in water
Identification |
A.Positive test for magnesium and for phosphate | A. | Positive test for magnesium and for phosphate |
A. | Positive test for magnesium and for phosphate
B.MgO content | B. | MgO content | Not less than 21,5 % after ignition
B. | MgO content
Purity |
Fluoride | Not more than 10 mg/kg (as fluorine)
Arsenic | Not more than 3 mg/kg
Lead | Not more than 4 mg/kg
Cadmium | Not more than 1 mg/kg
Mercury | Not more than 1 mg/kgE 343(ii) DIMAGNESIUM PHOSPHATE
Synonyms | Magnesiumhydrogenphosphate
Magnesiumphosphate, dibasic
Dimagnesium orthophosphate
Secondary magnesiumphosphate
Definition |
Chemical name | Dimagnesiummonohydrogenmonophosphate
Einecs | 231-823-5
Chemical formula | MgHPO4· nH2O (where n = 0-3)
Molecular weight | 120,30 (anhydrous)
Assay | Not less than 96 % after ignition
Description | White, odourless, crystalline powder, slightly soluble in water
Identification |
A.Positive test for magnesium and for phosphate | A. | Positive test for magnesium and for phosphate |
A. | Positive test for magnesium and for phosphate
B.MgO content: | B. | MgO content: | Not less than 33,0 % calculated on an anhydrous basis
B. | MgO content:
Purity |
Fluoride | Not more than 10 mg/kg (as fluorine)
Arsenic | Not more than 3 mg/kg
Lead | Not more than 4 mg/kg
Cadmium | Not more than 1 mg/kg
Mercury | Not more than 1 mg/kgE 350 (i) SODIUM MALATE
Synonyms | Sodium salt of malic acid
Definition |
Chemical name | Disodium DL-malate, disodium salt of hydroxybutanedioic acid
Chemical formula | Hemihydrate: C4H4Na2O5· 1/2 H2O
Trihydrate: C4H4Na2O5· 3H2O
Molecular weight | Hemihydrate: 187,05
Trihydrate: 232,10
Assay | Content not less than 98,0 % on the anhydrous basis
Description | White crystalline powder or lumps
Identification |
A.Positive tests for 1,2-dicarboxylic acid and for sodium | A. | Positive tests for 1,2-dicarboxylic acid and for sodium |
A. | Positive tests for 1,2-dicarboxylic acid and for sodium
B.Azo dye formation | B. | Azo dye formation | Positive
B. | Azo dye formation
C.Solubility | C. | Solubility | Freely soluble in water
C. | Solubility
Purity |
Loss on drying | Not more than 7,0 % (130oC, 4h) for the hemihydrate, or 20,5 %-23,5 % (130oC, 4h) for the trihydrate
Alkalinity | Not more than 0,2 % as Na2CO3
Fumaric acid | Not more than 1,0 %
Maleic acid | Not more than 0,05 %
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kgE 350 (ii) SODIUM HYDROGEN MALATE
Synonyms | Monosodium salt of DL-malic acid
Definition |
Chemical name | Monosodium DL-malate, monosodium 2-DL-hydroxy succinate
Chemical formula | C4H5NaO5
Molecular weight | 156,07
Assay | Content not less than 99,0 % on the anhydrous basis
Description | White powder
Identification |
A.Positive tests for 1,2-dicarboxylic acid and for sodium | A. | Positive tests for 1,2-dicarboxylic acid and for sodium |
A. | Positive tests for 1,2-dicarboxylic acid and for sodium
B.Azo dye formation | B. | Azo dye formation | Positive
B. | Azo dye formation
Purity |
Loss on drying | Not more than 2,0 % (110oC, 3h)
Maleic acid | Not more than 0,05 %
Fumaric acid | Not more than 1,0 %
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kgE 351 POTASSIUM MALATE
Synonyms | Potassium salt of malic acid
Definition |
Chemical name | Dipotassium DL-malate, dipotassium salt of hydroxybutanedioic acid
Chemical formula | C4H4K2O5
Molecular weight | 210,27
Assay | Content not less than 59,5 %
Description | Colourless or almost colourless aqueous solution
Identification |
A.Positive tests for 1,2-dicarboxylic acid and for potassium | A. | Positive tests for 1,2-dicarboxylic acid and for potassium |
A. | Positive tests for 1,2-dicarboxylic acid and for potassium
B.Azo dye formation | B. | Azo dye formation | Positive
B. | Azo dye formation
Purity |
Alkalinity | Not more than 0,2 % as K2CO3
Fumaric acid | Not more than 1,0 %
Maleic acid | Not more than 0,05 %
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kgE 352 (i) CALCIUM MALATE
Synonyms | Calcium salt of malic acid
Definition |
Chemical name | Calcium DL-malate, calcium-α-hydroxysuccinate, calcium salt of hydroxybutanedioic acid
Chemical formula | C4H5CaO5
Molecular weight | 172,14
Assay | Content not less than 97,5 % on the anhydrous basis
Description | White powder
Identification |
A.Positive tests for malate, 1,2-dicarboxylic acid and for calcium | A. | Positive tests for malate, 1,2-dicarboxylic acid and for calcium |
A. | Positive tests for malate, 1,2-dicarboxylic acid and for calcium
B.Azo dye formation | B. | Azo dye formation | Positive
B. | Azo dye formation
C.Solubility | C. | Solubility | Slightly soluble in water
C. | Solubility
Purity |
Loss on drying | Not more than 2 % (100oC, 3h)
Alkalinity | Not more than 0,2 % as CaCO3
Maleic acid | Not more than 0,05 %
Fumaric acid | Not more than 1,0 %
Fluoride | Not more than 30 mg/kg
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kgE 352 (ii) CALCIUM HYDROGEN MALATE
Synonyms | Monocalcium salt of DL-malic acid
Definition |
Chemical name | Monocalcium DL-malate, monocalcium 2-DL-hydroxysuccinate
Chemical formula | (C4H5O5)2Ca
Assay | Content not less than 97,5 % on the anhydrous basis
Description | White powder
Identification |
A.Positive tests for 1,2-dicarboxylic acid and for calcium | A. | Positive tests for 1,2-dicarboxylic acid and for calcium |
A. | Positive tests for 1,2-dicarboxylic acid and for calcium
B.Azo dye formation | B. | Azo dye formation | Positive
B. | Azo dye formation
Purity |
Loss on drying | Not more than 2,0 % (110oC, 3h)
Maleic acid | Not more than 0,05 %
Fumaric acid | Not more than 1,0 %
Fluoride | Not more than 30 mg/kg
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kgE 353 METATARTARIC ACID
Synonyms | Ditartaric acid
Definition |
Chemical name | Metatartaric acid
Chemical formula | C4H6O6
Assay | Not less than 99,5 %
Description | Crystalline or powder form with a white or yellowish colour. Very deliquescent with a faint odour of caramel
Identification |
A. | Very soluble in water and ethanol
B. | Place a sample of 1 to 10 mg of this substance in a test tube with 2 ml of concentrated sulfuric acid and 2 drops of sulpho-resorcinol reagent. When heated to 150oC, an intense violet coloration appears
Purity |
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kgE 354 CALCIUM TARTRATE
Synonyms | L-Calcium tartrate
Definition |
Chemical name | Calcium L(+)-2,3-dihydroxybutanedioate di-hydrate
Chemical formula | C4H4CaO6· 2H2O
Molecular weight | 224,18
Assay | Not less than 98,0 %
Description | Fine crystalline powder with a white or off-white colour
Identification |
A.Slightly soluble in water. Solubility approximately 0,01 g/100 ml water (20oC). Sparingly soluble in ethanol. Slightly soluble in diethyl ether. Soluble in acids | A. | Slightly soluble in water. Solubility approximately 0,01 g/100 ml water (20oC). Sparingly soluble in ethanol. Slightly soluble in diethyl ether. Soluble in acids |
A. | Slightly soluble in water. Solubility approximately 0,01 g/100 ml water (20oC). Sparingly soluble in ethanol. Slightly soluble in diethyl ether. Soluble in acids
B.Specific rotation [α]20D | B. | Specific rotation [α]20D | +7,0oto +7,4o(0,1 % in a 1N de HCl solution)
B. | Specific rotation [α]20D
C.pH of a 5 % slurry | C. | pH of a 5 % slurry | Between 6,0 and 9,0
C. | pH of a 5 % slurry
Purity |
Sulphates (as H2SO4) | Not more than 1 g/kg
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kgE 355 ADIPIC ACID
Definition |
Chemical name | Hexanedioic acid, 1,4-butanedicarboxylic acid
Einecs | 204-673-3
Chemical formula | C6H10O4
Molecular weight | 146,14
Assay | Content not less than 99,6 %
Description | White odourless crystals or crystalline powder
Identification |
A.Melting range | A. | Melting range | 151,5oC-154,0oC
A. | Melting range
B.Solubility | B. | Solubility | Slightly soluble in water. Freely soluble in ethanol
B. | Solubility
Purity |
Water | Not more than 0,2 % (Karl Fischer method)
Sulphated ash | Not more than 20 mg/kg
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kgE 356 SODIUM ADIPATE
Definition |
Chemical name | Sodium adipate
Einecs | 231-293-5
Chemical formula | C6H8Na2O4
Molecular weight | 190,11
Assay | Content not less than 99,0 % (on anhydrous basis)
Description | White odourless crystals or crystalline powder
Identification |
A.Melting range | A. | Melting range | 151oC-152oC (for adipic acid)
A. | Melting range
B.Solubility | B. | Solubility | Approximately 50 g/100 ml water (20oC)
B. | Solubility
C.Positive test for sodium | C. | Positive test for sodium |
C. | Positive test for sodium
Purity |
Water | Not more than 3 % (Karl Fischer)
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kgE 357 POTASSIUM ADIPATE
Definition |
Chemical name | Potassium adipate
Einecs | 242-838-1
Chemical formula | C6H8K2O4
Molecular weight | 222,32
Assay | Content not less than 99,0 % (on anhydrous basis)
Description | White odourless crystals or crystalline powder
Identification |
A.Melting range | A. | Melting range | 151oC-152oC (for adipic acid)
A. | Melting range
B.Solubility | B. | Solubility | Approximately 60 g/100 ml water (20oC)
B. | Solubility
C.Positive test for potassium | C. | Positive test for potassium |
C. | Positive test for potassium
Purity |
Water | Not more than 3 % (Karl Fischer)
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kgE 363 SUCCINIC ACID
Definition |
Chemical name | Butanedioic acid
Einecs | 203-740-4
Chemical formula | C4H6O4
Molecular weight | 118,09
Assay | Content no less than 99,0 %
Description | Colourless or white, odourless crystals
Identification |
A.Melting range | A. | Melting range | Between 185,0oC and 190,0oC
A. | Melting range
Purity |
Residue on ignition | Not more than 0,025 % (800oC, 15 min)
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kgE 380 TRIAMMONIUM CITRATE
Synonyms | Tribasic ammonium citrate
Definition |
Chemical name | Triammonium salt of 2-hydroxypropan-1,2,3-tricarboxylic acid
Einecs | 222-394-5
Chemical formula | C6H17N3O7
Molecular weight | 243,22
Assay | Content not less than 97,0 %
Description | White to off-white crystals or powder
Identification |
A.Positive tests for ammonium and for citrate | A. | Positive tests for ammonium and for citrate |
A. | Positive tests for ammonium and for citrate
B.Solubility | B. | Solubility | Freely soluble in water
B. | Solubility
Purity |
Oxalate | Not more than 0,04 % (as oxalic acid)
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kgE 385 CALCIUM DISODIUM ETHYLENEDIAMINETETRAACETATE
Synonyms | Calcium disodium EDTA
Calcium disodium edetate
Definition |
Chemical name | N, N′-1,2-Ethanediylbis [N-(carboxymethyl)-glycinate] [(4-)-O,O′,ON,ON]calciate(2)-disodium
Calcium disodium ethylenediaminetetra acetate Calcium disodium (ethylenedinitrilo)tetra acetate
Einecs | 200-529-9
Chemical formula | C10H12O8CaN2Na2·2H2O
Molecular weight | 410,31
Assay | Content not less than 97 % on the anhydrous basis
Description | White, odourless crystalline granules or white to nearly white powder, slightly hygroscopic
Identification |
A.Positive tests for sodium and for calcium | A. | Positive tests for sodium and for calcium |
A. | Positive tests for sodium and for calcium
B.Chelating activity to metal ions positive | B. | Chelating activity to metal ions positive |
B. | Chelating activity to metal ions positive
C.pH of a 1 % solution between 6,5 and 7,5 | C. | pH of a 1 % solution between 6,5 and 7,5 |
C. | pH of a 1 % solution between 6,5 and 7,5
Purity |
Water content | 5 to 13 % (Karl Fischer method)
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kg
Heavy metals (as Pb) | Not more than 10 mg/kgE 400 ALGINIC ACID
Definition | Linear glycuronoglycan consisting mainly of β-(1-4) linked D-mannuronic and α-(1-4) linked L-guluronic acid units in pyranose ring form. Hydrophilic colloidal carbohydrate extracted by the use of dilute alkali from natural strains of various species of brown seaweeds (Phaeophyceae)
Einecs | 232-680-1
Chemical formula | (C6H8O6)n
Molecular weight | 10 000 -600 000 (typical average)
Assay | Alginic acid yields, on the anhydrous basis, not less than 20 % and not more than 23 % of carbon dioxide (CO2), equivalent to not less than 91 % and not more than 104,5 % of alginic acid (C6H8O6)n(calculted on equivalent weight basis of 200)
Description | Alginic acid occurs in filamentous, grainy, granular and powdered forms. It is a white to yellowish brown and nearly odourless
Identification |
A.Solubility | A. | Solubility | Insoluble in water and organic solvents, slowly soluble in solutions of sodium carbonate, sodium hydroxide and trisodium phosphate
A. | Solubility
B.Calcium chloride precipitation test | B. | Calcium chloride precipitation test | To a 0,5 % solution of the sample in 1 M sodium hydroxide solution, add one fifth of its volume of a 2,5 % solution of calcium chloride. A voluminous, gelatinous precipitate is formed. This test distinguishes alginic acid from acacia gum, sodium carboxymethyl cellulose, carboxymethyl starch, carrageenan, gelatin, gum ghatti, karaya gum, locust bean gum, methyl cellulose and tragacanth gum
B. | Calcium chloride precipitation test
C.Ammonium sulphate precipitation test | C. | Ammonium sulphate precipitation test | To a 0,5 % solution of the sample in 1 M sodium hydroxide solution, add one half of its volume of a saturated solution of ammonium sulphate. No precipitate is formed. This test distinguishes alginic acid from agar, sodium carboxymethyl cellulose, carrageenan, de-esterified pectin, gelatin, locust bean gum, methyl cellulose and starch
C. | Ammonium sulphate precipitation test
D.Colour reaction | D. | Colour reaction | Dissolve as completely as possible 0,01 g of the sample by shaking with 0,15 ml of 0,1 N sodium hydroxide and add 1 ml of acid ferric sulphate solution. Within 5 minutes, a cherry-red colour develops that finally becomes deep purple
D. | Colour reaction
Purity |
pH of a 3 % suspension | Between 2,0 and 3,5
Loss on drying | Not more than 15 % (105oC, 4 hours)
Sulphated ash | Not more than 8 % on the anhydrous basis
Sodium hydroxide (1 M solution) | Not more than 2 % on the anhydrous basis insoluble matter
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kg
Cadmium | Not more than 1 mg/kg
Heavy metals (as Pb) | Not more than 20 mg/kg
Total plate count | Not more than 5 000 colonies per gram
Yeast and moulds | Not more than 500 colonies per gram
E. coli | Negative in 5 g
Salmonellaspp. | Negative in 10 gE 401 SODIUM ALGINATE
Definition |
Chemical name | Sodium salt of alginic acid
Chemical formula | (C6H7NaO6)n
Molecular weight | 10 000 -600 000 (typical average)
Assay | Yields, on the anhydrous basis, not less than 18 % and not more than 21 % of carbon dioxide corresponding to not less than 90,8 % and not more than 106,0 % of sodium alginate (calculated on equivalent weight basis of 222)
Description | Nearly odourless, white to yellowish fibrous or granular powder
Identification |
A.Positive test for sodium and alginic acid | A. | Positive test for sodium and alginic acid |
A. | Positive test for sodium and alginic acid
Purity |
Loss on drying | Not more than 15 % (105oC, 4 hours)
Water-insoluble matter | Not more than 2 % on the anhydrous basis
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kg
Cadmium | Not more than 1 mg/kg
Heavy metals (as Pb) | Not more than 20 mg/kg
Total plate count | Not more than 5 000 colonies per gram
Yeast and moulds | Not more than 500 colonies per gram
E. coli | Negative in 5 g
Salmonellaspp. | Negative in 10 gE 402 POTASSIUM ALGINATE
Definition |
Chemical name | Potassium salt of alginic acid
Chemical formula | (C6H7KO6)n
Molecular weight | 10 000 -600 000 (typical average)
Assay | Yields, on the anhydrous basis, not less than 16,5 % and not more than 19,5 % of carbon dioxide corresponding to not less than 89,2 % and not more than 105,5 % of potassium alginate (calculated on an equivalent weight basis of 238)
Description | Nearly odourless, white to yellowish fibrous or granular powder
Identification |
A.Positive test for potassium and for alginic acid | A. | Positive test for potassium and for alginic acid |
A. | Positive test for potassium and for alginic acid
Purity |
Loss on drying | Not more than 15 % (105oC, 4 hours)
Water-insoluble matter | Not more than 2 % on the anhydrous basis
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kg
Cadmium | Not more than 1 mg/kg
Heavy metals (as Pb) | Not more than 20 mg/kg
Total plate count | Not more than 5 000 colonies per gram
Yeast and moulds | Not more than 500 colonies per gram
E.coli | Negative in 5 g
Salmonellaspp. | Negative in 10 gE 403 AMMONIUM ALGINATE
Definition |
Chemical name | Ammonium salt of alginic acid
Chemical formula | (C6H11NO6)n
Molecular weight | 10 000 — 600 000 (typical average)
Assay | Yields, on the anhydrous basis, not less than 18 % and not more than 21 % of carbon dioxide corresponding to not less than 88,7 % and not more than 103,6 % ammonium alginate (calculated on an equivalent weight basis of 217)
Description | White to yellowish fibrous or granular powder
Identification |
A.Positive test for ammonium and alginic acid | A. | Positive test for ammonium and alginic acid |
A. | Positive test for ammonium and alginic acid
Purity |
Loss on drying | Not more than 15 % (105oC, 4 hours)
Sulphated ash | Not more than 7 % on the dried basis
Water-insoluble matter | Not more than 2 % on the anhydrous basis
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kg
Cadmium | Not more than 1 mg/kg
Heavy metals | Not more than 20 mg/kg
Total plate count | Not more than 5 000 colonies per gram
Yeast and moulds | Not more than 500 colonies per gram
E. coli | Negative in 5 g
Salmonellaspp. | Negative in 10 gE 404 CALCIUM ALGINATE
Synonyms | Calcium salt of alginate
Definition |
Chemical name | Calcium salt of alginic acid
Chemical formula | (C6H7Ca1/2O6)n
Molecular weight | 10 000 -600 000 (typical average)
Assay | Yields, on the anhydrous basis, not less than 18 % and not more than 21 % carbon dioxide corresponding to not less than 89,6 % and not more than 104,5 % of calcium alginate (calculated on an equivalent weight basis of 219)
Description | Nearly odourless, white to yellowish fibrous or granular powder
Identification |
A.Positive test for calcium and alginic acid | A. | Positive test for calcium and alginic acid |
A. | Positive test for calcium and alginic acid
Purity |
Loss on drying | Not more than 15,0 % (105oC, 4 hours)
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kg
Cadmium | Not more than 1 mg/kg
Heavy metals (as Pb) | Not more than 20 mg/kg
Total plate count | Not more than 5 000 colonies per gram
Yeast and moulds | Not more than 500 colonies per gram
E. coli | Negative in 5 g
Salmonellaspp. | Negative in 10 gE 405 PROPANE-1,2-DIOL ALGINATE
Synonyms | Hydroxypropyl alginate
1,2-propanediol ester of alginic acid
Propylene glycol alginate
Definition |
Chemical name | Propane-1,2-diol ester of alginic acid; varies in composition according to its degree of esterification and the percentage of free and neutralised carboxyl groups in the molecule
Chemical formula | (C9H14O7)n(esterified)
Molecular weight | 10 000 -600 000 (typical average)
Assay | Yields, on the anhydrous basis, not less than 16 % and not more than 20 % of CO2of carbon dioxide
Description | Nearly odourless, white to yellowish brown fibrous or granular powder
Identification |
A.Positive test for 1,2-propanediol and alginic acid after hydrolysis | A. | Positive test for 1,2-propanediol and alginic acid after hydrolysis |
A. | Positive test for 1,2-propanediol and alginic acid after hydrolysis
Purity |
Loss on drying | Not more than 20 % (105oC, 4 hours)
Total propane-1,2-diol content | Not less than 15 % and not more than 45 %
Free propane-1,2-diol content | Not more than 15 %
Water-insoluble matter | Not more than 2 % on the anhydrous basis
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kg
Cadmium | Not more than 1 mg/kg
Heavy metals (as Pb) | Not more than 20 mg/kg
Total plate count | Not more than 5 000 colonies per gram
Yeast and moulds | Not more than 500 colonies per gram
E. coli | Negative in 5 g
Salmonellaspp. | Negative in 10 gE 406 AGAR
Synonyms | Gelose
Japan agar
Bengal, Ceylon, Chinese or Japanese isinglass
Layor Carang
Definition |
Chemical name | Agar is a hydrophilic colloidal polysaccharide consisting mainly of D-galactose units. On about every tenth D-galactopyranose unit one of the hydroxyl groups is esterified with sulphuric acid which is neutralised by calcium, magnesium, potassium or sodium. It is extracted from certain natural strains of marine algae of the familiesGelidiaceaeandSphaerococcaceaeand related red algae of the classRhodophyceae
Einecs | 232-658-1
Assay | The threshold gel concentration should not be higher than 0,25 %
Description | Agar is odourless or has a slight characteristic odour. Unground agar usually occurs in bundles consisting of thin, membranous, agglutinated strips, or in cut, flaked or granulated forms. It may be light yellowish-orange, yellowish-grey to pale yellow, or colourless. It is tough when damp, brittle when dry. Powdered agar is white to yellowish-white or pale yellow. When examined in water under a microscope, the agar appears granular and somewhat filamentous. A few fragments of the spicules of sponges and a few frustules of diatoms may be present. In chloral hydrate solution, the powdered agar appears more transparent than in water, more or less granular, striated, angular and occasionally contains frustules of diatoms. Gel strength may be standardised by the addition of dextrose and maltodextrines or sucrose
Identification |
A.Solubility | A. | Solubility | Insoluble in cold water; soluble in boiling water
A. | Solubility
Purity |
Loss on drying | Not more than 22 % (105oC, 5 hours)
Ash | Not more than 6,5 % on the anhydrous basis determined at 550oC
Acid-insoluble ash (insoluble in approximately 3N Hydrochloric acid) | Not more than 0,5 % determined at 550oC on the anhydrous basis
Insoluble matter (in hot water) | Not more than 1,0 %
Starch | Not detectable by the following method: to a 1 in 10 solution of the sample add a few drops of iodine solution. No blue colour is produced
Gelatin and other proteins | Dissolve about 1 g of agar in 100 ml of boiling water and allow to cool of about 50oC. To 5 ml of the solution add 5 ml of trinitrophenol solution (1 g of anhydrous trinitrophenol/100 ml of hot water). No turbidity appears within 10 minutes
Water absorption | Place 5 g to agar in a 100 ml graduated cylinder, fill to the mark with water, mix and allow to stand at about 25oC for 24 hours. Pour the contents of the cylinder through moistened glass wool, allowing the water to drain into a second 100 ml graduated cylinder. Not more than 75 ml of water is obtained
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kg
Cadmium | Not more than 1 mg/kg
Heavy metals (as Pb) | Not more than 20 mg/kgE 407 CARRAGEENAN
Synonyms | Products of commerce are sold under different names such as:
Irish moss gelose
Eucheuman (fromEucheumaspp.)
Iridophycan (fromIridaeaspp.)
Hypnean (fromHypneaspp.)
Furcellaran or Danish agar (fromFurcellaria fastigiata)
Carrageenan (fromChondrusandGigartinaspp.)
Definition | Carrageenan is obtained by aqueous extraction of natural strains of seaweeds ofGigartinaceae,Solieriaceae,HypneaceaeandFurcellariaceae, families of the classRhodophyceae(red seaweeds). No organic precipitant shall be used other than methanol, ethanol and propane-2-ol. Carrageenan consists chiefly of the potassium, sodium, magnesium and calcium salts of polysaccharide sulphate esters which, on hydrolysis, yield galactose and 3,6-anhydrogalactose. Carrageenan shall not be hydrolysed or otherwise chemically degraded
Einecs | 232-524-2
Description | Yellowish to colourless, coarse to fine powder which is practically odourless
Identification |
A.Positive tests for galactose, for anhydrogalactose and for sulphate | A. | Positive tests for galactose, for anhydrogalactose and for sulphate |
A. | Positive tests for galactose, for anhydrogalactose and for sulphate
Purity |
Methanol, ethanol propane-2-ol content | Not more than 0,1 % singly or in combination
Viscosity of a 1,5 % solution at 75oC | Not less than 5 mPa.s
Loss on drying | Not more than 12 % (105oC, four hours)
Sulphate | Not less than 15 % and not more than 40 % on the dried basis (as SO4)
Ash | Not less than 15 % and not more than 40 % determined on the dried basis at 550oC
Acid-insoluble ash | Not more than 1 % on the dried basis (insoluble in 10 % hydrochloric acid)
Acid-insoluble matter | Not more than 2 % on the dried basis (insoluble in 1 % v/v sulphuric acid)
Low molecular weight carrageenan (Molecular weight fraction below 50 kDa) | Not more than 5 %
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kg
Cadmium | Not more than 1 mg/kg
Total plate count | Not more than 5 000 colonies per gram
Yeast and moulds | Not more than 300 colonies per gram
E. coli | Negative in 5 g
Salmonellaspp. | Negative in 10 gE 407a PROCESSED EUCHEUMA SEAWEED
Synonyms | PES (acronym for processed eucheuma seaweed)
Definition | Processed eucheuma seaweed is obtained by aqueous alkaline (KOH) treatment of the natural strains of seaweedsEucheuma cottoniiandEucheuma spinosum, of the classRhodophyceae(red seaweeds) to remove impurities and by fresh water washing and drying to obtain the product. Further purification may be achieved by washing with methanol, ethanol or propane-2-ol and drying. The product consists chiefly of the potassium salts of polysaccharide sulphate esters which, on hydrolysis, yield galactose and 3,6-anhydrogalactose. Sodium, calcium and magnesium salts of the polysaccharide sulphate esters are present in lesser amounts. Up to 15 % algal cellulose is also present in the product. The carrageenan in processed eucheuma seaweed shall not be hydrolysed or otherwise chemically degraded
Description | Tan to yellowish, coarse to fine powder which is practically odourless
Identification |
A.Positive tests for galactose, for anhydrogalactose and for sulphate | A. | Positive tests for galactose, for anhydrogalactose and for sulphate |
A. | Positive tests for galactose, for anhydrogalactose and for sulphate
B.Solubility | B. | Solubility | Forms cloudy viscous suspensions in water. Insoluble in ethanol
B. | Solubility
Purity |
Methanol, ethanol, propane-2-ol content | Not more than 0,1 % singly or in combination
Viscosity of a 1,5 % solution at 75oC | Not less than 5 mPa.s
Loss on drying | Not more than 12 % (105oC, four hours)
Sulphate | Not less than 15 % and not more than 40 % on the dried basis (as SO4)
Ash | Not less than 15 % and not more than 40 % determined on the dried basis at 550oC
Acid-insoluble ash | Not more than 1 % on the dried basis (insoluble in 10 % hydrochloric acid)
Acid-insoluble matter | Not less than 8 % and not more than 15 % on the dried basis (insoluble in 1 % v/v sulphuric acid)
Low molecular weight carrageenan (Molecular weight fraction below 50 kDa) | Not more than 5 %
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kg
Cadmium | Not more than 1 mg/kg
Total plate count | Not more than 5 000 colonies per gram
Yeast and moulds | Not more than 300 colonies per gram
E. coli | Negative in 5 g
Salmonellaspp. | Negative in 10 gE 410 LOCUST BEAN GUM
Synonyms | Carob bean gum
Algaroba gum
Definition | Locust bean gum is the ground endosperm of the seeds of the natural strains of carob tree,Cerationia siliqua(L.) Taub. (familyLeguminosae). Consists mainly of a high molecular weight hydrocolloidal polysaccharide, composed of galactopyranose and mannopyranose units combined through glycosidic linkages, which may be described chemically as galactomannan
Molecular weight | 50 000 -3 000 000
Einecs | 232-541-5
Assay | Galactomannan content not less than 75 %
Description | White to yellowish-white, nearly odourless powder
Identification |
A.Positive tests for galactose mannose | A. | Positive tests for galactose mannose |
A. | Positive tests for galactose mannose
B.Microscopic examination | B. | Microscopic examination | Place some ground sample in an aqueous solution containing 0,5 % iodine and 1 % potassium iodide on a glass slide and examine under microscope. Locust bean gum contains long stretched tubiform cells, separated or slightly interspaced. Their brown contents are much less regularly formed in guar gum. Guar gum shows close groups of round to pear shaped cells. Their contents are yellow to brown
B. | Microscopic examination
C.Solubility | C. | Solubility | Soluble in hot water, insoluble in ethanol
C. | Solubility
Purity |
Loss on drying | Not more than 15 % (105oC, 5 hours)
Ash | Not more than 1,2 % determined at 800oC
Protein (N × 6,25 ) | Not more than 7 %
Acid-insoluble matter | Not more than 4 %
Starch | Not detectable by the following method: to a 1 in 10 solution of the sample add a few drops of iodine solution. No blue colour is produced
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kg
Cadmium | Not more than 1 mg/kg
Heavy metals (as Pb) | Not more than 20 mg/kg
Ethanol and propane-2-ol | Not more than 1 %, single or in combinationE 412 GUAR GUM
Synonyms | Gum cyamopsis
Guar flour
Definition | Guar gum is the ground endosperm of the seeds of natural strains of the guar plant,Cyamopsis tetragonolobus(L.) Taub. (familyLeguminosae). Consists mainly of a high molecular weight hydrocolloidal polysaccharide composed of galactopyranose and mannopyranose units combined through glycosidic linkages, which may be described chemically as galactomannan
Einecs | 232-536-0
Molecular weight | 50 000 -8 000 000
Assay | Galactomannan content not less than 75 %
Description | A white to yellowish-white, nearly odourless powder
Identification |
A.Positive tests for galactose and for mannose | A. | Positive tests for galactose and for mannose |
A. | Positive tests for galactose and for mannose
B.Solubility | B. | Solubility | Soluble in cold water
B. | Solubility
Purity |
Loss on drying | Not more than 15 % (105oC, 5 hours)
Ash | Not more than 1,5 % determined at 800oC
Acid-insoluble matter | Not more than 7 %
Protein (N × 6,25 ) | Not more than 10 %
Starch | Not detectable by the following method: to a 1 in 10 solution of the sample add a few drops of iodine solution. (No blue colour is produced)
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kg
Cadmium | Not more than 1 mg/kg
Heavy metals (as Pb) | Not more than 20 mg/kgE 413 TRAGACANTH
Synonyms | Tragacanth gum
Tragant
Definition | Tragacanth is a dried exudation obtained from the stems and branches of natural strains ofAstragalus gummiferLabillardiere and other Asiatic species ofAstragalus(familyLeguminosae). It consists mainly of high molecular weight polysaccharides (galactoarabans and acidic polysaccharides) which, on hydrolysis, yield galacturonic acid, galactose, arabinose, xylose and fucose. Small amounts of rhamnose and of glucose (derived from traces of starch and/or cellulose) may also be present
Molecular weight | Approximately 800 000
Einecs | 232-252-5
Description | Unground Tragacanth gum occurs as flattened, lamellated, straight or curved fragments or as spirally twisted pieces 0,5 -2,5 mm thick and up to 3 cm in length. It is white to pale yellow in colour but some pieces may have a red tinge. The pieces are horny in texture, with a short fracture. It is odourless and solutions have an insipid mucilaginous taste. Powdered tragacanth is white to pale yellow or pinkish brown (pale tan) in colour
Identification |
A.Solubility | A. | Solubility | 1 g of the sample in 50 ml of water swells to form a smooth, stiff, opalescent mucilage; insoluble in ethanol and does not swell in 60 % (w/v) aqueous ethanol
A. | Solubility
Purity |
Negative test for Karaya gum | Boil 1 g with 20 ml of water until a mucilage is formed. Add 5 ml of hydrochloric acid and again boil the mixture for five minutes. No permanent pink or red colour develops
Loss on drying | Not more than 16 % (105oC, 5 hours)
Total ash | Not more than 4 %
Acid insoluble ash | Not more than 0,5 %
Acid insoluble matter | Not more than 2 %
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kg
Cadmium | Not more than 1 mg/kg
Heavy metals (as Pb) | Not more than 20 mg/kg
Salmonellaspp. | Negative in 10 g
E. coli | Negative in 5 gE 414 ACACIA GUM
Synonyms | Gum arabic
Definition | Acacia gum is a dried exudation obtained from the stems and branches of natural strains ofAcacia senegal(L) Willdenow or closely related species of Acacia (familyLeguminosae). It consists mainly of high molecular weight polysaccharides and their calcium, magnesium and potassium salts, which on hydrolysis yield arabinose, galactose, rhamnose and glucuronic acid
Molecular weight | Approximately 350 000
Einecs | 232-519-5
Description | Unground acacia gum occurs as white or yellowish-white spheroidal tears of varying sizes or as angular fragments and is sometimes mixed with darker fragments. It is also available in the form of white to yellowish-white flakes, granules, powder or spray-dried material.
Identification |
A.Solubility | A. | Solubility | 1 g dissolves in 2 ml of cold water forming a solution which flows readily and is acid to litmus, insoluble in ethanol
A. | Solubility
Purity |
Loss on drying | Not more than 17 % (105oC, 5 hours) for granular and not more than 10 % (105oC, 4 hours) for spray-dried material
Total ash | Not more than 4 %
Acid insoluble ash | Not more than 0,5 %
Acid insoluble matter | Not more than 1 %
Starch or dextrin | Boil a 1 in 50 solution of the gum and cool. To 5 ml add 1 drop of iodine solution. No bluish or reddish colours are produced
Tannin | To 10 ml of a 1 in 50 solution add about 0,1 ml of ferric chloride solution (9 g FeCl3.6H2O made up to 100 ml with water). No blackish colouration or blackish precipitate is formed
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kg
Cadmium | Not more than 1 mg/kg
Heavy metals (as Pb) | Not more than 20 mg/kg
Hydrolysis products | Mannose, xylose and galacturonic acid are absent (determined by chromatography)
Salmonellaspp. | Negative in 10 g
E. coli | Negative in 5 gE 415 XANTHAN GUM
Definition | Xanthan gum is a high molecular weight polysaccharide gum produced by a pure-culture fermentation of a carbohydrate with natural strains ofXanthomonas campestris, purified by recovery with ethanol or propane-2-ol, dried and milled. It contains D-glucose and D-mannose as the dominant hexose units, along with D-glucuronic acid and pyruvic acid, and is prepared as the sodium, potassium or calcium salt. Its solutions are neutral
Molecular weight | Approximately 1 000 000
Einecs | 234-394-2
Assay | Yields, on dried basis, not less than 4,2 % and not more than 5 % of CO2corresponding to between 91 % and 108 % of xanthan gum
Description | Cream-coloured powder
Identification |
A.Solubility | A. | Solubility | Soluble in water. Insoluble in ethanol
A. | Solubility
Purity |
Loss on drying | Not more than 15 % (105oC, 21/2 hours)
Total ash | Not more than 16 % on the anhydrous basis determined at 650oC after drying at 105oC for four hours
Pyruvic acid | Not less than 1,5 %
Nitrogen | Not more than 1,5 %
Ethanol and propan-2-ol | Not more than 500 mg/kg singly or in combination
Lead | Not more than 2 mg/kg
Total plate count | Not more than 5 000 colonies per gram
Yeast and mould | Not more than 300 colonies per gram
E. coli | Absent in 5 g
Salmonellaspp. | Absent in 10 g
Xanthomonas campestris | Viable cells absent in 1 gE 416 KARAYA-GUM
Synonyms | Katilo
Kadaya
Gumsterculia
Sterculia
Karaya, gum karaya
Kullo
Kuterra
Definition | Karaya gum is a dried exudation from the stems and branches of natural strains of:Sterculia urensRoxburgh and other species ofSterculia(familySterculiaceae) or fromCochlospermum gossypiumA.P. De Candolle or other species ofCochlospermum(familyBixaceae). It consists mainly of high molecular weight acetylated polysaccharides, which on hydrolysis yield galactose, rhamnose, and galacturonic acid, together with minor amounts of glucuronic acid
Einecs | 232-539-4
Description | Karaya gum occurs in tears of variable size and in broken irregular pieces having a characteristic semi-crystalline appearance. It is pale yellow to pinkish brown in colour, translucent and horny. Powdered karaya gum is a pale grey to pinkish brown. The gum has a distinctive odour of acetic acid
Identification |
A.Solubility | A. | Solubility | Insoluble in ethanol
A. | Solubility
B.Swelling in ethanol solution | B. | Swelling in ethanol solution | Karaya gum swells in 60 % ethanol distinguishing it from other gums
B. | Swelling in ethanol solution
Purity |
Loss on drying | Not more than 20 % (105oC, 5 hours)
Total ash | Not more than 8 %
Acid insoluble ash | Not more than 1 %
Acid insoluble matter | Not more than 3 %
Volatile acid | Not less than 10 % (as acetic acid)
Starch | Not detectable
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kg
Cadmium | Not more than 1 mg/kg
Heavy metals (as Pb) | Not more than 20 mg/kg
Salmonellaspp. | Negative in 10 g
E. coli | Negative in 5 gE 417 TARA GUM
Definition | Tara gum is obtained by grinding the endosperm of the seeds of natural strains ofCaesalpinia spinosa(familyLeguminosae). It consists chiefly of polysaccharides of high molecular weight composed mainly of galactomannans. The principal component consists of a linear chain of (1-4)-β-D-mannopyranose units with α-D-galactopyranose units attached by (1-6) linkages. The ratio of mannose to galactose in tara gum is 3:1. (In locust bean gum this ratio is 4:1 and in guar gum 2:1)
Einecs | 254-409-6
Description | A white to white-yellow odourless powder
Identification |
A.Solubility | A. | Solubility | Soluble in water
A. | Solubility
Insoluble in ethanol
B.Gel formation | B. | Gel formation | To an aqueous solution of the sample add small amounts of sodium borate. A gel is formed
B. | Gel formation
Purity |
Loss on drying | Not more than 15 %
Ash | Not more than 1,5 %
Acid insoluble matter | Not more than 2 %
Protein | Not more than 3,5 % (factor N × 5,7 )
Starch | Not detectable
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kg
Cadmium | Not more than 1 mg/kg
Heavy metals (as Pb) | Not more than 20 mg/kgE 418 GELLAN GUM
Definition | Gellan gum is a high molecular weight polysaccharide gum produced by a pure culture fermentation of a carbohydrate by natural strains ofPseudomonas elodea, purified by recovery with isopropyl alcohol, dried, and milled. The high molecular weight polysaccharide is principally composed of a tetrasaccharide repeating unit of one rhamnose, one glucuronic acid, and two glucoses, and substituted with acyl (glyceryl and acetyl) groups as the O-glycosidically linked esters. The glucuronic acid is neutralised to a mixed potassium, sodium, calcium, and magnesium salt
Einecs | 275-117-5
Molecular weight | Approximately 500 000
Assay | Yields, on the dried basis, not less than 3,3 % and not more than 6,8 % of CO2
Description | An off-white powder
Identification |
A.Solubility | A. | Solubility | Soluble in water, forming a viscous solution.
A. | Solubility
Insoluble in ethanol
Purity |
Loss on drying | Not more than 15 % after drying (105oC, 21/2 hours)
Nitrogen | Not more than 3 %
Propane-2-ol | Not more than 750 mg/kg
Arsenic | Not more than 3 mg/kg
Lead | Not more than 2 mg/kg
Mercury | Not more than 1 mg/kg
Cadmium | Not more than 1 mg/kg
Heavy metals (as Pb) | Not more than 20 mg/kg
Total plate count | Not more than 10 000 colonies per gram
Yeast and mould | Not more than 400 colonies per gram
E. coli | Negative in 5 g
Salmonellaspp. | Negative in 10 gE 420(i) SORBITOLPurity criteria for this additive are the same as set out for this additive in Annex I to Commission Directive 2008/60/EC(7).
E 420(ii) SORBITOL SYRUPPurity criteria for this additive are the same as set out for this additive in Annex I to Directive 2008/60/EC.
E 421 MANNITOLPurity criteria for this additive are the same as set out for this additive in Annex I to Directive 2008/60/EC.
E 422 GLYCEROL
Synonyms | Glycerin
Glycerine
Definition |
Chemical names | 1,2,3-propanetriol
Glycerol
Trihydroxypropane
Einecs | 200-289-5
Chemical formula | C3H8O3
Molecular weight | 92,10
Assay | Content not less than 98 % of glycerol on the anhydrous basis
Description | Clear, colourless hygroscopic syrupy liquid with not more than a slight characteristic odour, which is neither harsh nor disagreeable
Identification |
A.Acrolein formation on heating | A. | Acrolein formation on heating | Heat a few drops of the sample in a test tube with about 0,5 g of potassium bisulphate. The characteristic pungent vapours of acrolein are evolved
A. | Acrolein formation on heating
B.Specific gravity (25/25oC) | B. | Specific gravity (25/25oC) | Not less than 1,257
B. | Specific gravity (25/25oC)
C.Refractive index [n]D20 | C. | Refractive index [n]D20 | Between 1,471 and 1,474
C. | Refractive index [n]D20
Purity |
Water | Not more than 5 % (Karl Fischer method)
Sulphated ash | Not more than 0,01 % determined at 800 ± 25oC
Butanetriols | Not more than 0,2 %
Acrolein, glucose and ammonium compounds | Heat a mixture of 5 ml of glycerol and 5 ml of potassium hydroxide solution (1 in 10) at 60oC for five minutes. It neither becomes yellow nor emits an odour of ammonia
Fatty acids and esters | Not more than 0,1 % calculated as butyric acid
Chlorinated compounds | Not more than 30 mg/kg (as chlorine)
Arsenic | Not more than 3 mg/kg
Lead | Not more than 2 mg/kg
Mercury | Not more than 1 mg/kg
Cadmium | Not more than 1 mg/kg
Heavy metals (as Pb) | Not more than 5 mg/kgE 425(i) KONJAC GUM
Definition | Konjac gum is a water-soluble hydrocolloid obtained from the Konjac flour by aqueous extraction. Konjac flour is the unpurified raw product from the root of the perennial plantAmorphophallus konjac.The main component of Konjac gum is the water-soluble high-molecular-weight polysaccharide glucomannan, which consists of D-mannose and D-glucose units at a molar ratio of 1,6 :1,0, connected by β(1-4)-glycosidic bonds. Shorter side chains are attached through β(1-3)-glycosidic bonds, and acetyl groups occur at random at a ratio of about 1 group per 9 to 19 sugar units
Molecular weight | The main component, glucomannan, has an average molecular weight of 200 000 to 2 000 000
Assay | Not less than 75 % carbohydrate
Description | A white to cream to light tan powder
Identification |
A.Solubility | A. | Solubility | Dispersible in hot or cold water forming a highly viscous solution with a pH between 4,0 and 7,0
A. | Solubility
B.Gel formation | B. | Gel formation | Add 5 ml of a 4 % sodium borate solution to a 1 % solution of the sample in a test tube, and shake vigorously. A gel forms
B. | Gel formation
C.Formation of heat-stable gel | C. | Formation of heat-stable gel | Prepare a 2 % solution of the sample by heating it in a boiling water bath for 30 min, with continuous agitation and then cooling the solution to room temperature. For each g of the sample used to prepare 30 g of the 2 % solution, add 1 ml of 10 % potassium carbonate solution to the fully hydrated sample at ambient temperature. Heat the mixture in a water bath to 85oC, and maintain for 2 h without agitation. Under these conditions a thermally stable gel is formed
C. | Formation of heat-stable gel
D.Viscosity (1 % solution) | D. | Viscosity (1 % solution) | Not less than 3 kgm-1s-1at 25oC
D. | Viscosity (1 % solution)
Purity |
Loss on drying | Not more than 12 % (105oC, 5 h)
Starch | Not more than 3 %
Protein | Not more than 3 % (N × 5,7 )
Determine nitrogen by Kjeldahl method. The percentage of nitrogen in the sample multiplied by 5,7 gives the percent of protein in the sample
Ether-soluble material | Not more than 0,1 %
Total ash | Not more than 5,0 % (800oC, 3 to 4h)
Arsenic | Not more than 3 mg/kg
Lead | Not more than 2 mg/kg
Salmonellaspp. | Absent in 12,5 g
E. coli | Absent in 5 gE 425(ii) KONJAC GLUCOMANNAN
Definition | Konjac glucomannan is a water-soluble hydrocolloid obtained from Konjac flour by washing with water-containing ethanol. Konjac flour is the unpurified raw product from the tuber of the perennial plantAmorphophallus konjac. The main component is the water-soluble high-molecular-weight polysaccharide glucomannan, which consists of D-mannose and D-glucose units at a molar ratio of 1,6 :1,0, connected by β(1-4)-glycosidic bonds with a branch at about each 50th or 60th unit. About each 19th sugar residue is acetylated
Molecular weight | 500 000 to 2 000 000
Assay | Total dietary fibre: not less than 95 % on a dry weight basis
Description | White to slightly brownish fine particle size, free flowing and odourless powder
Identification |
A.Solubility | A. | Solubility | Dispersible in hot or cold water forming a highly viscous solution with a pH between 5,0 and 7,0 . Solubility is increased by heat and mechanical agitation
A. | Solubility
B.Formation of heat-stable gel | B. | Formation of heat-stable gel | Prepare a 2 % solution of the sample by heating it in a boiling water bath for 30 min, with continuous agitation and then cooling the solution to room temperature. For each g of the sample used to prepare 30 g of the 2 % solution, add 1 ml of 10 % potassium carbonate solution to the fully hydrated sample at ambient temperature. Heat the mixture in a water bath to 85oC, and maintain for 2 h without agitation. Under these conditions a thermally stable gel is formed
B. | Formation of heat-stable gel
C.Viscosity (1 % solution) | C. | Viscosity (1 % solution) | Not less than 20 kgm-1s-1at 25oC
C. | Viscosity (1 % solution)
Purity |
Loss on drying | Not more than 8 % (105oC, 3h)
Starch | Not more than 1 %
Protein | Not more than 1,5 % (N × 5,7 )
Determine nitrogen by Kjeldahl method. The percentage of nitrogen in the sample multiplied by 5,7 gives the percent of protein in the sample
Ether-soluble material | Not more than 0,5 %
Sulphite (as SO2) | Not more than 4 mg/kg
Chloride | Not more than 0,02 %
50 % Alcohol-soluble | Not more than 2,0 % material
Total ash | Not more than 2,0 % (800oC, 3 to 4h)
Lead | Not more than 1 mg/kg
Salmonellaspp. | Absent in 12,5 g
E. coli | Absent in 5 gE 426 SOYBEAN HEMICELLULOSE
Definition | Soybean hemicellulose is a refined water-soluble polysaccharide obtained from natural strain soybean fibre by hot water extraction
Chemical names | Water soluble soybean polysaccharides
Water soluble soybean fibre
Assay | Not less than 74 % carbohydrate
Description | Free flowing spray-dried white powder
Identification |
A.Solubility pH of 1 % solution | A. | Solubility pH of 1 % solution | Soluble in hot and cold water without gel formation
A. | Solubility pH of 1 % solution
5,5 ±1,5
B.Viscosity of 10 % solution | B. | Viscosity of 10 % solution | Not more than 200 mPa.s
B. | Viscosity of 10 % solution
Purity |
Loss on drying | Not more than 7 % (105oC, 4h)
Protein | Not more than 14 %
Total ash | Not more than 9,5 % (600oC, 4h)
Arsenic | Not more than 2 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kg
Cadmium | Not more than 1 mg/kg
Standard plate count | Not more than 3 000 colonies per gram
Yeast and mould | Not more than 100 colonies per gram
E. coli | Negative in 10 gE 431 POLYOXYETHYLENE (40) STEARATE
Synonyms | Polyoxyl (40) stearate
polyoxyethylene (40) monostearate
Definition | A mixture of the mono- and diesters of edible commercial stearic acid and mixed polyoxyethylene diols (having an average polymer length of about 40 oxyethylene units) together with free polyol
Assay | Content not less than 97,5 % on the anhydrous basis
Description | Cream-coloured flakes or waxy solid at 25oC with a faint odour
Identification |
A.Solubility | A. | Solubility | Soluble in water, ethanol, methanol and ethyl acetate. Insoluble in mineral oil
A. | Solubility
B.Congealing range | B. | Congealing range | 39oC-44oC
B. | Congealing range
C.Infrared absorption spectrum | C. | Infrared absorption spectrum | Characteristic of a partial fatty acid ester of a polyoxyethylated polyol
C. | Infrared absorption spectrum
Purity |
Water | Not more than 3 % (Karl Fischer method)
Acid value | Not more than 1
Saponification value | Not less than 25 and not more than 35
Hydroxyl value | Not less than 27 and not more than 40
1,4-Dioxane | Not more than 5 mg/kg
Ethylene oxide | Not more than 0,2 mg/kg
Ethylene glycols (mono- and di-) | Not more than 0,25 %
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kg
Cadmium | Not more than 1 mg/kgE 432 POLYOXYETHYLENE SORBITAN MONOLAURATE (POLYSORBATE 20)
Synonyms | Polysorbate 20
Polyoxyethylene (20) sorbitan monolaurate
Definition | A mixture of the partial esters of sorbitol and its mono- and dianhydrides with edible commercial lauric acid and condensed with approximately 20 moles of ethylene oxide per mole of sorbitol and its anhydrides
Assay | Content not less than 70 % of oxyethylene groups, equivalent to not less than 97,3 % of polyoxyethylene (20) sorbitan monolaurate on the anhydrous basis
Description | A lemon to amber-coloured oily liquid at 25oC with a faint characteristic odour
Identification |
A.Solubility | A. | Solubility | Soluble in water, ethanol, methanol, ethyl acetate and dioxane. Insoluble in mineral oil and petroleum ether
A. | Solubility
B.Infrared absorption spectrum | B. | Infrared absorption spectrum | Characteristic of a partial fatty acid ester of a polyoxyethylated polyol
B. | Infrared absorption spectrum
Purity |
Water | Not more than 3 % (Karl Fischer method)
Acid value | Not more than 2
Saponification value | Not less than 40 and not more than 50
Hydroxyl value | Not less than 96 and not more than 108
1,4-dioxane | Not more than 5 mg/kg
Ethylene oxide | Not more than 0,2 mg/kg
Ethylene glycols (mono- and di-) | Not more than 0,25 %
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kg
Cadmium | Not more than 1 mg/kgE 433 POLYOXYETHYLENE SORBITAN MONOOLEATE (POLYSORBATE 80)
Synonyms | Polysorbate 80
Polyoxyethylene (20) sorbitan monooleate
Definition | A mixture of the partial esters of sorbitol and its mono- and dianhydrides with edible commercial oleic acid and condensed with approximately 20 moles of ethylene oxide per mole of sorbitol and its anhydrides
Assay | Content not less than 65 % of oxyethylene groups, equivalent to not less than 96,5 % of polyoxyethylene (20) sorbitan monooleate on the anhydrous basis
Description | A lemon to amber-coloured oily liquid at 25oC with a faint characteristic odour
Identification |
A.Solubility | A. | Solubility | Soluble in water, ethanol, methanol, ethyl acetate and toluene. Insoluble in mineral oil and petroleum ether
A. | Solubility
B.Infrared absorption spectrum | B. | Infrared absorption spectrum | Characteristic of a partial fatty acid ester of a polyoxyethylated polyol
B. | Infrared absorption spectrum
Purity |
Water | Not more than 3 % (Karl Fischer method)
Acid value | Not more than 2
Saponification value | Not less than 45 and not more than 55
Hydroxyl value | Not less than 65 and not more than 80
1,4-dioxane | Not more than 5 mg/kg
Ethylene oxide | Not more than 0,2 mg/kg
Ethylene glycols (mono- and di-) | Not more than 0,25 %
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kg
Cadmium | Not more than 1 mg/kgE 434 POLYOXYETHYLENE SORBITAN MONOPALMITATE (POLYSORBATE 40)
Synonyms | Polysorbate 40
Polyoxyethylene (20) sorbitan monopalmitate
Definition | A mixture of the partial esters of sorbitol and its mono- and dianhydrides with edible commercial palmitic acid and condensed with approximately 20 moles of ethylene oxide per mole of sorbitol and its anhydrides
Assay | Content not less than 66 % of oxyethylene groups, equivalent to not less than 97 % of polyoxyethylene (20) sorbitan monopalmitate on the anhydrous basis
Description | A lemon to orange-coloured oily liquid or semi-gel at 25oC with a faint characteristic odour
Identification |
A.Solubility | A. | Solubility | Soluble in water, ethanol, methanol, ethyl acetate and acetone. Insoluble in mineral oil
A. | Solubility
B.Infrared absorption spectrum | B. | Infrared absorption spectrum | Characteristic of a partial fatty acid ester of a polyoxyethylated polyol
B. | Infrared absorption spectrum
Purity |
Water | Not more than 3 % (Karl Fischer method)
Acid value | Not more than 2
Saponification value | Not less than 41 and not more than 52
Hydroxyl value | Not less than 90 and not more than 107
1,4-dioxane | Not more than 5 mg/kg
Ethylene oxide | Not more than 0,2 mg/kg
Ethylene glycols (mono- and di-) | Not more than 0,25 %
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kg
Cadmium | Not more than 1 mg/kgE 435 POLYOXYETHYLENE SORBITAN MONOSTEARATE (POLYSORBATE 60)
Synonyms | Polysorbate 60
Polyoxyethylene (20) sorbitan monostearate
Definition | A mixture of the partial esters of sorbitol and its mono- and dianhydrides with edible commercial stearic acid and condensed with approximately 20 moles of ethylene oxide per mole of sorbitol and its anhydrides
Assay | Content not less than 65 % of oxyethylene groups, equivalent to not less than 97 % of polyoxyethylene (20) sorbitan monostearate on the anhydrous basis
Description | A lemon to orange-coloured oily liquid or semi-gel at 25oC with a faint characteristic odour
Identification |
A.Solubility | A. | Solubility | Soluble in water, ethyl acetate and toluene. Insoluble in mineral oil and vegetable oils
A. | Solubility
B.Infrared absorption spectrum | B. | Infrared absorption spectrum | Characteristic of a partial fatty acid ester of a polyoxyethylated polyol
B. | Infrared absorption spectrum
Purity |
Water | Not more than 3 % (Karl Fischer method)
Acid value | Not more than 2
Saponification value | Not less than 45 and not more than 55
Hydroxyl value | Not less than 81 and not more than 96
1,4-dioxane | Not more than 5 mg/kg
Ethylene oxide | Not more than 0,2 mg/kg
Ethylene glycols (mono- and di-) | Not more than 0,25 %
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kg
Cadmium | Not more than 1 mg/kgE 436 POLYOXYETHYLENE SORBITAN TRISTEARATE (POLYSORBATE 65)
Synonyms | Polysorbate 65
Polyoxyethylene (20) sorbitan tristearate
Definition | A mixture of the partial esters of sorbitol and its mono- and dianhydrides with edible commercial stearic acid and condensed with approximately 20 moles of ethylene oxide per mole of sorbitol and its anhydrides
Assay | Content not less than 46 % of oxyethylene groups, equivalent to not less than 96 % of polyoxyethylene (20) sorbitan tristearate on the anhydrous basis
Description | A tan-coloured, waxy solid at 25oC with a faint characteristic odour
Identification |
A.Solubility | A. | Solubility | Dispersible in water. Soluble in mineral oil, vegetal oils, petroleum ether, acetone, ether, dioxane, ethanol and methanol
A. | Solubility
B.Congealing range | B. | Congealing range | 29-33oC
B. | Congealing range
C.Infrared absorption spectrum | C. | Infrared absorption spectrum | Characteristic of a partial fatty acid ester of a polyoxyethylated polyol
C. | Infrared absorption spectrum
Purity |
Water | Not more than 3 % (Karl Fischer method)
Acid value | Not more than 2
Saponification value | Not less than 88 and not more than 98
Hydroxyl value | Not less than 40 and not more than 60
1,4-dioxane | Not more than 5 mg/kg
Ethylene oxide | Not more than 0,2 mg/kg
Ethylene glycols (mono- and di-) | Not more than 0,25 %
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kg
Cadmium | Not more than 1 mg/kgE 440 (i) PECTIN
Definition | Pectin consists mainly of the partial methyl esters of polygalacturonic acid and their ammonium, sodium, potassium and calcium salts. It is obtained by extraction in an aqueous medium of natural strains of appropriate edible plant material, usually citrus fruits or apples. No organic precipitant shall be used other than methanol, ethanol and propane-2-ol
Einecs | 232-553-0
Assay | Content not less than 65 % of galacturonic acid on the ash-free and anhydrous basis after washing with acid and alcohol
Description | White, light yellow, light grey or light brown powder
Identification |
A.Solubility | A. | Solubility | Soluble in water forming a colloidal, opalescent solution. Insoluble in ethanol
A. | Solubility
Purity |
Loss on drying | Not more than 12 % (105oC, 2 hours)
Acid insoluble ash | Not more than 1 % (insoluble in approximately 3N hydrochloric acid)
Sulphur dioxide | Not more than 50 mg/kg on the anhydrous basis
Nitrogen content | Not more than 1,0 % after washing with acid and ethanol
Free methanol, ethanol and propane-2-ol | Not more than 1 %, singly or in combination, on the anhydrous basis
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kg
Cadmium | Not more than 1 mg/kg
Heavy metals (as Pb) | Not more than 20 mg/kgE 440 (ii) AMIDATED PECTIN
Definition | Amidated pectin consists mainly of the partial methyl esters and amides of polygalacturonic acid and their ammonium, sodium, potassium and calcium salts. It is obtained by extraction in an aqueous medium of appropriate natural strains of edible plant material, usually citrus fruits or apples and treatment with ammonia under alkaline conditions. No organic precipitant shall be used other than methanol, ethanol and propane-2-ol
Assay | Content not less than 65 % of galacturonic acid on the ash-free and anhydrous basis after washing with acid and alcohol
Description | White, light yellow, light greyish or light brownish powder
Identification |
A.Solubility | A. | Solubility | Soluble in water forming a colloidal, opalescent solution. Insoluble in ethanol
A. | Solubility
Purity |
Loss on drying | Not more than 12 % (105oC, 2 hours)
Acid-insoluble ash | Not more than 1 % (insoluble in approximately 3N hydrochloric acid)
Degree of amidation | Not more than 25 % of total carboxyl groups
Sulphur dioxide residue | Not more than 50 mg/kg on the anhydrous basis
Nitrogen content | Not more than 2,5 % after washing with acid and ethanol
Free methanol, ethanol and propane-2-ol | Not more than 1 % single or in combination, on a volatile matter-free basis
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kg
Cadmium | Not more than 1 mg/kg
Heavy metals (as Pb) | Not more than 20 mg/kgE 442 AMMONIUM PHOSPHATIDES
Synonyms | Ammonium salts of phosphatidic acid, mixed ammonium salts of phoshorylated glycerides
Definition | A mixture of the ammonium compounds of phosphatidic acids derived from edible fat and oil (usually partially hardened rapeseed oil). One or two or three glyceride moieties may be attached to phosphorus. Moreover, two phosphorus esters may be linked together as phosphatidyl phosphatides
Assay | The phosphorus content is not less than 3 % and not more than 3,4 % by weight; the ammonium content is not less than 1,2 % and not more than 1,5 % (calculated as N)
Description | Unctuous semi-solid
Identification |
A.Solubility | A. | Solubility | Soluble in fats. Insoluble in water. Partially soluble in ethanol and in acetone
A. | Solubility
B.Positive tests for glycerol, for fatty acid and for phosphate | B. | Positive tests for glycerol, for fatty acid and for phosphate |
B. | Positive tests for glycerol, for fatty acid and for phosphate
Purity |
Petroleum ether insoluble matter | Not more than 2,5 %
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kg
Cadmium | Not more than 1 mg/kg
Heavy metals (as Pb) | Not more than 10 mg/kgE 444 SUCROSE ACETATE ISOBUTYRATE
Synonyms | SAIB
Definition | Sucrose acetate isobutyrate is a mixture of the reaction products formed by the esterification of food grade sucrose with acetic acid anhydride and isobutyric anhydride, followed by distillation. The mixture contains all possible combinations of esters in which the molar ratio of acetate to butyrate is about 2:6
Einecs | 204-771-6
Chemical name | Sucrose diacetate hexaisobutyrate
Chemical formulae | C40H62O19
Molecular weight | 832-856 (approximate), C40H62O19: 846,9
Assay | Content not less than 98,8 % and not more than 101,9 % of C40H62O19
Description | A pale straw-coloured liquid, clear and free of sediment and having a bland odour
Identification |
A.Solubility | A. | Solubility | Insoluble in water. Soluble in most organic solvents
A. | Solubility
B.Refractive index | B. | Refractive index | [n]40D: 1,4492 -1,4504
B. | Refractive index
C.Specific gravity | C. | Specific gravity | [d]25D: 1,141 -1,151
C. | Specific gravity
Purity |
Triacetin | Not more than 0,1 %
Acid value | Not more than 0,2
Saponification value | Not less than 524 and not more than 540
Arsenic | Not more than 3 mg/kg
Lead | Not more than 3 mg/kg
Mercury | Not more than 1 mg/kg
Cadmium | Not more than 1 mg/kg
Heavy metals (as Pb) | Not more than 5 mg/kgE 445 GLYCEROL ESTERS OF WOOD ROSIN
Synonyms | Ester gum
Definition | A complex mixture of tri- and diglycerol esters of resin acids from wood rosin. The rosin is obtained by the solvent extraction of aged pine stumps followed by a liquid-liquid solvent refining process. Excluded from these specifications are substances derived from gum rosin, and exudate of living pine trees, and substances derived from tall oil rosin, a by-product of kraft (paper) pulp processing. The final product is composed of approximately 90 % resin acids and 10 % neutrals (non-acidic compounds). The resin acid fraction is a complex mixture of isomeric diterpenoid monocarboxylic acids having the empirical molecular formula of C20H30O2, chiefly abietic acid. The substance is purified by steam stripping or by countercurrent steam distillation
Description | Hard, yellow to pale amber-coloured solid
Identification |
A.Solubility | A. | Solubility | Insoluble in water, soluble in acetone
A. | Solubility
B.Infrared absorption spectrum | B. | Infrared absorption spectrum | Characteristic of the compound
B. | Infrared absorption spectrum
Purity |
Specific gravity of solution | [d]2025not less than 0,935 when determined in a 50 % solution in d-limonene (97 %, boilding point 175,5 -176oC, d204: 0,84 )
Ring and ball softening range | Between 82oC and 90oC
Acid value | Not less than 3 and not more than 9
Hydroxyl value | Not less than 15 and not more than 45
Arsenic | Not more than 3 mg/kg
Lead | Not more than 2 mg/kg
Mercury | Not more than 1 mg/kg
Cadmium | Not more than 1 mg/kg
Heavy metals (as Pb) | Not more than 10 mg/kg
Test for absence of tall oil rosin (sulphur test) | When sulphur-containing organic compounds are heated in the presence of sodium formate, the sulphur is converted to hydrogen sulphide which can readily be detected by the use of lead acetate paper. A positive test indicates the use of tall oil rosin instead of wood rosinE 450 (i) DISODIUM DIPHOSPHATE
Synonyms | Disodium dihydrogen diphosphate
Disodium dihydrogen pyrophosphate
Sodium acid pyrophosphate
Disodium pyrophosphate
Definition |
Chemical name | Disodium dihydrogen diphosphate
Einecs | 231-835-0
Chemical formula | Na2H2P2O7
Molecular weight | 221,94
Assay | Content not less than 95 % of disodium diphosphate
P2O5Content | Not less than 63,0 % and not more than 64,5 %
Description | White powder or grains
Identification |
A.Positive tests for sodium and for phosphate | A. | Positive tests for sodium and for phosphate |
A. | Positive tests for sodium and for phosphate
B.Solubility | B. | Solubility | Soluble in water
B. | Solubility
C.pH of a 1 % solution | C. | pH of a 1 % solution | Between 3,7 and 5,0
C. | pH of a 1 % solution
Purity |
Loss on drying | Not more than 0,5 % (105oC, four hours)
Water-insoluble matter | Not more than 1 %
Fluoride | Not more than 10 mg/kg (expressed as fluorine)
Arsenic | Not more than 3 mg/kg
Cadmium | Not more than 1 mg/kg
Lead | Not more than 4 mg/kg
Mercury | Not more than 1 mg/kgE 450 (ii) TRISODIUM DIPHOSPHATE
Synonyms | Acid trisodium pyrophosphate
Trisodium monohydrogen diphosphate
Definition |
Einecs | 238-735-6
Chemical formula | Monohydrate: Na3HP2O7· H2O
Anhydrous: Na3HP2O7
Molecular weight | Monohydrate: 261,95
Anhydrous: 243,93
Assay | Content not less than 95 % on the anhydrous basis
P2O5content | Not less than 57 % and not more than 59 %
Description | White powder or grains, occurs anhydrous or as a monohydrate
Identification |
A.Positive tests for sodium and for phosphate | A. | Positive tests for sodium and for phosphate |
A. | Positive tests for sodium and for phosphate
B.Solubility | B. | Solubility | Soluble in water
B. | Solubility
C.pH of a 1 % solution | C. | pH of a 1 % solution | Between 6,7 and 7,5
C. | pH of a 1 % solution
Purity |
Loss on ignition | Not more than 4,5 % on the anhydrous compound
Not more than 11,5 % on the monohydrous basis
Loss on drying | Not more than 0,5 % (105oC, four hours)
Water-insoluble matter | Not more than 0,2 %
Fluoride | Not more than 10 mg/kg (expressed as fluorine)
Arsenic | Not more than 3 mg/kg
Cadmium | Not more than 1 mg/kg
Lead | Not more than 4 mg/kg
Mercury | Not more than 1 mg/kgE 450 (iii) TETRASODIUM DIPHOSPHATE
Synonyms | Tetrasodium pyrophosphate
Sodium pyrophosphate
Definition |
Chemical name | Tetrasodium diphosphate
Einecs | 231-767-1
Chemical formula | Anhydrous: Na4P2O7
Decahydrate: Na4P2O7· 10H2O
Molecular weight | Anhydrous: 265,94
Decahydrate: 446,09
Assay | Content not less than 95 % of Na4P2O7on the ignited basis
P2O5content | Not less than 52,5 % and not more than 54,0 %
Description | Colourless or white crystals, or a white crystalline or granular powder. The decahydrate effloresces slightly in dry air
Identification |
A.Positive tests for sodium and for phosphate | A. | Positive tests for sodium and for phosphate |
A. | Positive tests for sodium and for phosphate
B.Solubility | B. | Solubility | Soluble in water. Insoluble in ethanol
B. | Solubility
C.pH of a 1 % solution | C. | pH of a 1 % solution | Between 9,8 and 10,8
C. | pH of a 1 % solution
Purity |
Loss on ignition | Not more than 0,5 % for the anhydrous salt, not less than 38 % and not more than 42 % for the decahydrate, in both cases determined after drying at 105oC for four hours, followed by ignition at 550oC for 30 minutes
Water-insoluble matter | Not more than 0,2 %
Fluoride | Not more than 10 mg/kg (expressed as fluorine)
Arsenic | Not more than 3 mg/kg
Cadmium | Not more than 1 mg/kg
Lead | Not more than 4 mg/kg
Mercury | Not more than 1 mg/kgE 450 (v) TETRAPOTASSIUM DIPHOSPHATE
Synonyms | Potassium pyrophosphate
Tetrapotassium pyrophosphate
Definition |
Chemical name | Tetrapotassium diphosphate
Einecs | 230-785-7
Chemical formula | K4P2O7
Molecular weight | 330,34 (anhydrous)
Assay | Content not less than 95 % on the ignited basis
P2O5content | Not less than 42,0 % and not more than 43,7 % on the anhydrous basis
Description | Colourless crystals or white, very hygroscopic powder
Identification |
A.Positive tests for potassium and for phosphate | A. | Positive tests for potassium and for phosphate |
A. | Positive tests for potassium and for phosphate
B.Solubility | B. | Solubility | Soluble in water, insoluble in ethanol
B. | Solubility
C.pH of a 1 % solution | C. | pH of a 1 % solution | Between 10,0 and 10,8
C. | pH of a 1 % solution
Purity |
Loss on ignition | Not more than 2 % after drying at 105oC for four hours and then ignition at 550oC for 30 minutes
Water-insoluble substances | Not more than 0,2 %
Fluoride | Not more than 10 mg/kg (expressed as fluorine)
Arsenic | Not more than 3 mg/kg
Cadmium | Not more than 1 mg/kg
Lead | Not more than 4 mg/kg
Mercury | Not more than 1 mg/kgE 450 (vi) DICALCIUM DIPHOSPHATE
Synonyms | Calcium pyrophosphate
Definition |
Chemical name | Dicalcium diphosphate
Dicalcium pyrophosphate
Einecs | 232-221-5
Chemical formula | Ca2P2O7
Molecular weight | 254,12
Assay | Content not less than 96 %
P2O5content | Not less than 55 % and not more than 56 %
Description | A fine, white, odourless powder
Identification |
A.Positive tests for calcium and for phosphate | A. | Positive tests for calcium and for phosphate |
A. | Positive tests for calcium and for phosphate
B.Solubility | B. | Solubility | Insoluble in water. Soluble in dilute hydrochloric and nitric acids
B. | Solubility
C.pH of a 10 % suspension in water | C. | pH of a 10 % suspension in water | Between 5,5 and 7,0
C. | pH of a 10 % suspension in water
Purity |
Loss on ignition | Not more than 1,5 % at 800oC ± 25oC for 30 minutes
Fluoride | Not more than 50 mg/kg (expressed as fluorine)
Arsenic | Not more than 3 mg/kg
Cadmium | Not more than 1 mg/kg
Lead | Not more than 4 mg/kg
Mercury | Not more than 1 mg/kgE 450 (vii) CALCIUM DIHYDROGEN DIPHOSPHATE
Synonyms | Acid calcium pyrophosphate
Monocalcium dihydrogen pyrophosphate
Definition |
Chemical name | Calcium dihydrogen diphosphate
Einecs | 238-933-2
Chemical formula | CaH2P2O7
Molecular weight | 215,97
Assay | Content not less than 90 % on the anhydrous basis
P2O5content | Not less than 61 % and not more than 64 %
Description | White crystals or powder
Identification |
A.Positive tests for calcium and for phosphate | A. | Positive tests for calcium and for phosphate |
A. | Positive tests for calcium and for phosphate
Purity |
Acid-insoluble matter | Not more than 0,4 %
Fluoride | Not more than 30 mg/kg (expressed as fluorine)
Arsenic | Not more than 3 mg/kg
Cadmium | Not more than 1 mg/kg
Lead | Not more than 4 mg/kg
Mercury | Not more than 1 mg/kgE 451 (i) PENTASODIUM TRIPHOSPHATE
Synonyms | Pentasodium tripolyphosphate
Sodium tripolyphosphate
Definition |
Chemical name | Pentasodium triphosphate
Einecs | 231-838-7
Chemical formula | Na5O10P3· nH2O (n = 0 or 6)
Molecular weight | 367,86
Assay | Content not less than 85,0 % (anhydrous) or 65,0 % (hexahydrate)
P2O5content | Not less than 56 % and not more than 59 % (anhydrous) or not less than 43 % and not more than 45 % (hexahydrate)
Description | White, slightly hygroscopic granules or powder
Identification |
A.Solubility | A. | Solubility | Freely soluble in water. Insoluble in ethanol
A. | Solubility
B.Positive tests for sodium and for phosphate | B. | Positive tests for sodium and for phosphate |
B. | Positive tests for sodium and for phosphate
C.pH of a 1 % solution | C. | pH of a 1 % solution | Between 9,1 and 10,2
C. | pH of a 1 % solution
Purity |
Loss on drying | Anhydrous: Not more than 0,7 % (105oC, one hour)
Hexahydrate: Not more than 23,5 % (60oC, one hour, followed by drying at 105oC, four hours)
Water-insoluble substances | Not more than 0,1 %
Higher polyphosphates | Not more than 1 %
Fluoride | Not more than 10 mg/kg (expressed as fluorine)
Arsenic | Not more than 3 mg/kg
Cadmium | Not more than 1 mg/kg
Lead | Not more than 4 mg/kg
Mercury | Not more than 1 mg/kgE 451 (ii) PENTAPOTASSIUM TRIPHOSPHATE
Synonyms | Pentapotassium tripolyphosphate
Potassium triphosphate
Potassium tripolyphosphate
Definition |
Chemical name | Pentapotassium triphosphate
Pentapotassium tripolyphosphate
Einecs | 237-574-9
Chemical formula | K5O10P3
Molecular weight | 448,42
Assay | Content not less than 85 % on the anhydrous basis
P2O5content | Not less than 46,5 % and not more than 48 %
Description | White, very hygroscopic powder or granules
Identification |
A.Solubility | A. | Solubility | Very soluble in water
A. | Solubility
B.Positive tests for potassium and for phosphate | B. | Positive tests for potassium and for phosphate |
B. | Positive tests for potassium and for phosphate
C.pH of a 1 % solution | C. | pH of a 1 % solution | Between 9,2 and 10,5
C. | pH of a 1 % solution
Purity |
Loss on ignition | Not more than 0,4 % (after drying at 105oC, four hours, followed by ignition at 550oC, 30 minutes)
Water-insoluble matter | Not more than 2 %
Fluoride | Not more than 10 mg/kg (expressed as fluorine)
Arsenic | Not more than 3 mg/kg
Cadmium | Not more than 1 mg/kg
Lead | Not more than 4 mg/kg
Mercury | Not more than 1 mg/kgE 452 (i) SODIUM POLYPHOSPHATE1. SOLUBLE POLYPHOSPHATE
Synonyms | Sodium hexametaphosphate
Sodium tetrapolyphosphate
Graham’s salt
Sodium polyphosphates, glassy
Sodium polymetaphosphate
Sodium metaphosphate
Definition | Soluble sodium polyphosphates are obtained by fusion and subsequent chilling of sodium orthophosphates. These compounds are a class consisting of several amorphous, water-soluble polyphosphates composed of linear chains of metaphosphate units, (NaPO3)xwhere x ≥ 2, terminated by Na2PO4groups. These substances are usually identified by their Na2O/P2O5ratio or their P2O5content. The Na2O/P2O5ratios vary from about 1,3 for sodium tetrapolyphosphate, where x = approximately 4; to about 1,1 for Graham’s salt, commonly called sodium hexametaphosphate, where x = 13 to 18; and to about 1,0 for the higher molecular weight sodium polyphosphates, where x = 20 to 100 or more. The pH of their solutions varies from 3,0 to 9,0
Chemical name | Sodium polyphosphate
Einecs | 272-808-3
Chemical formula | Heterogenous mixtures of sodium salts of linear condensed polyphosphoric acids of general formula H(n + 2)PnO(3n + 1)where ‘n’ is not less than 2
Molecular weight | (102)n
Assay P2O5content | Not less than 60 % and not more than 71 % on the ignited basis
Description | Colourless or white, transparent platelets, granules, or powders
Identification |
A.Solubility | A. | Solubility | Very soluble in water
A. | Solubility
B.Positive tests for sodium and for phosphate | B. | Positive tests for sodium and for phosphate |
B. | Positive tests for sodium and for phosphate
C.pH of a 1 % solution | C. | pH of a 1 % solution | Between 3,0 and 9,0
C. | pH of a 1 % solution
Purity |
Loss on ignition | Not more than 1 %
Water-insoluble matter | Not more than 0,1 %
Fluoride | Not more than 10 mg/kg (expressed as fluorine)
Arsenic | Not more than 3 mg/kg
Cadmium | Not more than 1 mg/kg
Lead | Not more than 4 mg/kg
Mercury | Not more than 1 mg/kg2. INSOLUBLE POLYPHOSPHATE
Synonyms | Insoluble sodium metaphosphate
Maddrell’s salt
Insoluble sodium polyphosphate, IMP
Definition | Insoluble sodium metaphosphate is a high molecular weight sodium polyphosphate composed of two long metaphosphate chains (NaPO3)xthat spiral in opposite directions about a common axis. The Na2O/P2O5ratio is about 1,0 . The pH of 1 in 3 suspension in water is about 6,5
Chemical name | Sodium polyphosphate
Einecs | 272-808-3
Chemical formula | Heterogenous mixtures of sodium salts of linear condensed polyphosphoric acids of general formula H(n + 2)PnO(3n + 1)where ‘n’ is not less than 2
Molecular weight | (102)n
P2O5content | Not less than 68,7 % and not more than 70,0 %
Description | White crystalline powder
Identification |
A.Solubility | A. | Solubility | Insoluble in water, soluble in mineral acids and in solutions of potassium and ammonium (but not sodium) chlorides
A. | Solubility
B.Positive tests for sodium and for phosphate | B. | Positive tests for sodium and for phosphate |
B. | Positive tests for sodium and for phosphate
C.pH of 1 in 3 suspension in water | C. | pH of 1 in 3 suspension in water | About 6,5
C. | pH of 1 in 3 suspension in water
Purity |
Fluoride | Not more than 10 mg/kg (expressed as fluorine)
Arsenic | Not more than 3 mg/kg
Cadmium | Not more than 1 mg/kg
Lead | Not more than 4 mg/kg
Mercury | Not more than 1 mg/kgE 452 (ii) POTASSIUM POLYPHOSPHATE
Synonyms | Potassium metaphosphate
Potassium polymetaphosphate
Kurrol salt
Definition |
Chemical name | Potassium polyphosphate
Einecs | 232-212-6
Chemical formula | (KPO3)n
Heterogenous mixtures of potassium salts of linear condensed polyphosphoric acids of general formula H(n + 2)PnO(3n + 1)where ‘n’ is not less than 2
Molecular weight | (118)n
P2O5content | Not less than 53,5 % and not more than 61,5 % on the ignited basis
Description | Fine white powder or crystals or colourless glassy platelets
Identification |
A.Solubility | A. | Solubility | 1 g dissolves in 100 ml of a 1 in 25 solution of sodium acetate
A. | Solubility
B.Positive tests for potassium and for phosphate | B. | Positive tests for potassium and for phosphate |
B. | Positive tests for potassium and for phosphate
C.pH of a 1 % suspension | C. | pH of a 1 % suspension | Not more than 7,8
C. | pH of a 1 % suspension
Purity |
Loss on ignition | Not more than 2 % (105oC, four hours followed by ignition at 550oC, 30 minutes)
Cyclic phosphate | Not more than 8 % on P2O5content
Fluoride | Not more than 10 mg/kg (expressed as fluorine)
Arsenic | Not more than 3 mg/kg
Cadmium | Not more than 1 mg/kg
Lead | Not more than 4 mg/kg
Mercury | Not more than 1 mg/kgE 452(iii) SODIUM CALCIUM POLYPHOSPHATE
Synonym | Sodium calcium polyphosphate, glassy
Definition |
Chemical name | Sodium calcium polyphosphate
Einecs | 233-782-9
Chemical formula | (NaPO3)nCaO where n is typically 5
Assay | Not less than 61 % and not more than 69 % as P2O5
Description | White glassy crystals, spheres
Identification |
A.pH of a 1 % m/m slurry | A. | pH of a 1 % m/m slurry | Approximately 5 to 7
A. | pH of a 1 % m/m slurry
B.CaO content | B. | CaO content | 7 %-15 % m/m
B. | CaO content
Purity |
Fluoride | Not more than 10 mg/kg
Arsenic | Not more than 3 mg/kg
Lead | Not more than 4 mg/kg
Cadmium | Not more than 1 mg/kg
Mercury | Not more than 1 mg/kgE 452 (iv) CALCIUM POLYPHOSPHATE
Synonyms | Calcium metaphosphate
Calcium polymetaphosphate
Definition |
Chemical name | Calcium polyphosphate
Einecs | 236-769-6
Chemical formula | (CaP2O6)n
Heterogenous mixtures of calcium salts of condensed polyphosphoric acids of general formula H(n + 2)PnO(n + 1)where ‘n’ is not less than 2
Molecular weight | (198)n
P2O5content | Not less than 71 % and not more than 73 % on the ignited basis
Description | Odourless, colourless crystals or white powder
Identification |
A.Solubility | A. | Solubility | Usually sparingly soluble in water. Soluble in acid medium
A. | Solubility
B.Positive tests for calcium and for phosphate | B. | Positive tests for calcium and for phosphate |
B. | Positive tests for calcium and for phosphate
C.CaO content | C. | CaO content | 27 to 29,5 %
C. | CaO content
Purity |
Loss on ignition | Not more than 2 % (105oC, four hours followed by ignition at 550oC, 30 minutes)
Cyclic phosphate | Not more than 8 % on P2O5content
Fluoride | Not more than 30 mg/kg (expressed as fluorine)
Arsenic | Not more than 3 mg/kg
Cadmium | Not more than 1 mg/kg
Lead | Not more than 4 mg/kg
Mercury | Not more than 1 mg/kgE 459 BETA-CYCLODEXTRIN
Definition | Beta-cyclodextrin is a non-reducing cyclic saccharide consisting of seven α-1,4-linked D-glucopyranosyl units. The product is manufactured by the action of the enzyme cycloglycosyltransferase (CGTase) obtained fromBacillus circulans, Paenibacillus maceransor recombinantBacillus licheniformisstrain SJ1608 on partially hydrolysed starch
Chemical name | Cycloheptaamylose
Einecs | 231-493-2
Chemical formula | (C6H10O5)7
Molecular weight | 1 135
Assay | Content not less than 98,0 % of (C6H10O5)7on an anhydrous basis
Description | Virtually odourless white or almost white crystalline solid
Identification |
A.Solubility | A. | Solubility | Sparingly soluble in water; freely soluble in hot water; slightly soluble in ethanol
A. | Solubility
B.Specific rotation | B. | Specific rotation | [α]25D: + 160oto + 164o(1 % solution)
B. | Specific rotation
Purity |
Water | Not more than 14 % (Karl Fischer method)
Other cyclodextrins | Not more than 2 % on an anhydrous basis
Residual solvents (toluene and trichloroethylene) | Not more than 1 mg/kg for each solvent
Sulphated ash | Not more than 0,1 %
Arsenic | Not more than 1 mg/kg
Lead | Not more than 1 mg/kgE 460 (i) MICROCRISTALLINE CELLULOSE
Synonyms | Cellulose gel
Definition | Microcrystalline cellulose is purified, partally depolymerised cellulose prepared by treating alpha-cellulose, obtained as a pulp from natural strains of fibrous plant material, with mineral acids. The degree of polymerisation is typically less than 400
Chemical name | Cellulose
Einecs | 232-674-9
Chemical formula | (C6H10O5)n
Molecular weight | About 36 000
Assay | Not less than 97 % calculated as cellulose on the anhydrous basis
Description | A fine white or almost white odourless powder
Identification |
A.Solubility | A. | Solubility | Insoluble in water, ethanol, ether and dilute mineral acids. Slightly soluble in sodium hydroxide solution
A. | Solubility
B.Colour reaction | B. | Colour reaction | To 1 mg of the sample, add 1 ml of phosphoric acid and heat on a water bath for 30 minutes. Add 4 ml of a 1 in 4 solution of pyrocatechol in phosphoric acid and heat for 30 minutes. A red colour is produced
B. | Colour reaction
C.To be identified by IR spectroscopy | C. | To be identified by IR spectroscopy |
C. | To be identified by IR spectroscopy
D.Suspension test | D. | Suspension test | Mix 30 g of the sample with 270 ml of water in a high-speed (12 000 rpm) power blender for 5 minutes. The resultant mixture will be either a free-following suspension or a heavy, lumpy suspension which flows poorly, if at all, settles only slightly and contains many trapped air bubbles. If a free-flowing suspension is obtained, transfer 100 ml into a 100-ml graduated cylinder and allow to stand for 1 hour. The solids settles and a supernatant liquid appears
D. | Suspension test
Purity |
Loss on drying | Not more than 7 % (105oC, 3 hours)
Water-soluble matter | Not more than 0,24 %
Sulphated ash | Not more than 0,5 % determined at 800 ± 25oC
pH of a 10 % suspension in water | The pH of the supernatant liquid is between 5,0 and 7,5
Starch | Not detectable
To 20 ml of the dispersion obtained in identification, test D, add a few drops of iodine solution and mix. No purplish to blue or blue colour should be produced
Particle size | Not less than 5μm (not more than 10 % of particles of less than 5μm)
Carboxyl groups | Not more than 1 %
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kg
Cadmium | Not more than 1 mg/kg
Heavy metals (as Pb) | Not more than 10 mg/kgE 460 (ii) POWDERED CELLULOSE
Definition | Purified, mechanically disintegrated celluslose prepared by processing alpha-cellulose obtained as a pulp from natural strains of fibrous plant materials
Chemical name | Cellulose
Linear polymer of 1:4 linked glucose residues
Einecs | 232-674-9
Chemical formula | (C6H10O5)n
Molecular weight | (162)n(n is predominantly 1 000 and greater)
Assay | Content not less than 92 %
Description | A white, odourless powder
Identification |
A.Solubility | A. | Solubility | Insoluble in water, ethanol, ether and dilute mineral acids. Slightly soluble in sodium hydroxide solution
A. | Solubility
B.Suspension test | B. | Suspension test | Mix 30 g of the sample with 270 ml of water in a high-speed (12 000 rpm) power blender for 5 minutes. The resultant mixture will be either a free-flowing suspension or a heavy, lumpy suspension which flows poorly, if at all, settles only slightly and contains many trapped air bubbles. If a free-flowing suspension is obtained, transfer 100 ml into a 100-ml graduated cylinder and allow to stand for 1 hour. The solids settle and a supernatant liquid appears
B. | Suspension test
Purity |
Loss on drying | Not more than 7 % (105oC, 3 hours)
Water-soluble matter | Not more than 1,0 %
Sulphated ash | Not more than 0,3 % determined at 800 ± 25oC
pH of a 10 % suspension in water | The pH of the supernatant liquid is between 5,0 and 7,5
Starch | Not detectable
To 20 ml of the dispersion obtained in identification, test B, add a few drops of iodine solution and mix. No purplish to blue or blue colour should be produced
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kg
Cadmium | Not more than 1 mg/kg
Heavy metals (as Pb) | Not more than 10 mg/kg
Particle size | Not less than 5μm (not more than 10 % of particles of less than 5μm)E 461 METHYL CELLULOSE
Synonyms | Cellulose methyl ether
Definition | Methyl cellulose is cellulose obtained directly from natural strains of fibrous plant material and partially etherified with methyl groups
Chemical name | Methyl ether of cellulose
Chemical formula | The polymers contain substituted anhydroglucose units with the following general formula:
C6H7O2(OR1)(OR2)(OR3) where R1, R2, R3each may be one of the following:—H—CH3—or CH2CH3 | — | H | — | CH3 | — | or CH2CH3
— | H
— | CH3
— | or CH2CH3
Molecular weight | From about 20 000 to 380 000
Assay | Content not less than 25 % and not more than 33 % of methoxyl groups (-OCH3) and not more than 5 % of hydroxyethoxyl groups (-OCH2CH2OH)
Description | Slightly hygroscopic white or slightly yellowish or greyish odourless and tasteless, granular or fibrous powder
Identification |
A.Solubility | A. | Solubility | Swelling in water, producing a clear to opalescent, viscous, colloidal solution.
A. | Solubility
Insoluble in ethanol, ether and chloroform.
Soluble in glacial acetic acid
Purity |
Loss on drying | Not more than 10 % (105oC, 3 hours)
Sulphated ash | Not more than 1,5 % determined at 800 ± 25oC
pH of a 1 % colloidal solution | Not less than 5,0 and not more than 8,0
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kg
Cadmium | Not more than 1 mg/kg
Heavy metals (as Pb) | Not more than 20 mg/kgE 462 ETHYL CELLULOSE
Synonyms | Cellulose ethyl ether
Definition | Ethyl cellulose is cellulose obtained directly from fibrous plant material and partially etherified with ethyl groups
Chemical name | Ethyl ether of cellulose
Chemical formula | The polymers contain substituted anhydroglucose units with the following general formula:
C6H7O2(OR1)(OR2) where R1and R2may be any of the following:—H—CH2CH3 | — | H | — | CH2CH3
— | H
— | CH2CH3
Assay | Content not less than 44 % and not more than 50 % of ethoxyl groups (-OC2H5) on the dried basis (equivalent to not more than 2,6 ethoxyl groups per anhydroglucose unit)
Description | Slightly hygroscopic white to off-white, odourless and tasteless powder
Identification |
A.Solubility | A. | Solubility | Practically insoluble in water, in glycerol and in propane-1,2-diol but soluble in varying proportions in certain organic solvents depending upon the ethoxyl content. Ethyl cellulose containing less than 46 to 48 % of ethoxyl groups is freely soluble in tetrahydrofuran, in methyl acetate, in chloroform and in aromatic hydrocarbon ethanol mixtures. Ethyl cellulose containing 46 to 48 % or more of ethoxyl groups is freely soluble in ethanol, in methanol, in toluene, in chloroform and in ethyl acetate
A. | Solubility
B.Film forming test | B. | Film forming test | Dissolve 5 g of the sample in 95 g of an 80:20 (w/w) mixture of toluene ethanol. A clear, stable, slightly yellow solution is formed. Pour a few ml of the solution onto a glass plate and allow the solvent to evaporate. A thick, tough, continuous, clear film remains. The film is flammable
B. | Film forming test
Purity |
Loss on drying | Not more than 3 % (105oC, 2 hours)
Sulphated ash | Not more than 0,4 %
pH of a 1 % colloidal solution | Neutral to litmus
Arsenic | Not more than 3 mg/kg
Lead | Not more than 2 mg/kg
Mercury | Not more than 1 mg/kg
Cadmium | Not more than 1 mg/kgE 463 HYDROXYPROPYL CELLULOSE
Synonyms | Cellulose hydroxypropyl ether
Definition | Hydroxypropylcellulose is cellulose obtained directly from natural strains of fibrous plant material and partially etherified with hydroxypropyl groups
Chemical name | Hydroxypropyl ether of cellulose
Chemical formula | The polymers contain substituted anhydroglucose units with the following general formula:
C6H7O2(OR1)(OR2)(OR3), where R1, R2, R3each may be one of the following:—H—CH2CHOHCH3—CH2CHO(CH2CHOHCH3)CH3—CH2CHO[CH2CHO(CH2CHOHCH3)CH3]CH3 | — | H | — | CH2CHOHCH3 | — | CH2CHO(CH2CHOHCH3)CH3 | — | CH2CHO[CH2CHO(CH2CHOHCH3)CH3]CH3
— | H
— | CH2CHOHCH3
— | CH2CHO(CH2CHOHCH3)CH3
— | CH2CHO[CH2CHO(CH2CHOHCH3)CH3]CH3
Molecular weight | From about 30 000 to 1 000 000
Assay | Content not less than 80,5 % of hydroxypropoxyl groups (-OCH2CHOHCH3) equivalent to not more than 4,6 hydroxypropyl groups per anhydroglucose unit on the anhydrous basis
Description | Slightly hygroscopic white or slightly yellowish or greyish odourless and tasteless, granular or fibrous powder
Identification |
A.Solubility | A. | Solubility | Swelling in water, producing a clear to opalescent, viscous, colloidal solution. Soluble in ethanol. Insoluble in ether
A. | Solubility
B.Gas chromatography | B. | Gas chromatography | Determine the substituents by gas chromotography
B. | Gas chromatography
Purity |
Loss on drying | Not more than 10 % (105oC, 3 hours)
Sulphated ash | Not more than 0,5 % determined at 800 ± 25oC
pH of a 1 % colloidal solution | Not less than 5,0 and not more than 8,0
Propylene chlorohydrins | Not more than 0,1 mg/kg
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kg
Cadmium | Not more than 1 mg/kg
Heavy metals (as Pb) | Not more than 20 mg/kgE 464 HYDROXYPROPYL METHYL CELLULOSE
Definition | Hydroxypropyl methyl cellulose is cellulose obtained directly from natural strains of fibrous plant material and partially etherified with methyl groups and containing a small degree of hydroxypropyl substitution
Chemical name | 2-Hydroxypropyl ether of methylcellulose
Chemical formula | The polymers contain substituted anhydroglucose units with the following general formula:
C6H7O2(OR1)(OR2)(OR3), where R1, R2R3each may be one of the following:—H—CH3—CH2CHOHCH3—CH2CHO (CH2CHOHCH3) CH3—CH2CHO[CH2CHO (CH2CHOHCH3) CH3]CH3 | — | H | — | CH3 | — | CH2CHOHCH3 | — | CH2CHO (CH2CHOHCH3) CH3 | — | CH2CHO[CH2CHO (CH2CHOHCH3) CH3]CH3
— | H
— | CH3
— | CH2CHOHCH3
— | CH2CHO (CH2CHOHCH3) CH3
— | CH2CHO[CH2CHO (CH2CHOHCH3) CH3]CH3
Molecular weight | From about 13 000 to 200 000
Assay | Content not less than 19 % and not more than 30 % methoxyl groups (-OCH3) and not less than 3 % and not more than 12 % hydroxypropoxyl groups (-OCH2CHOHCH3), on the anhydrous basis
Description | Slightly hygroscopic white or slightly yellowish or greyish odourless and tasteless, granular or fibrous powder
Identification |
A.Solubility | A. | Solubility | Swelling in water, producing a clear to opalescent, viscous, colloidal solution. Insoluble in ethanol
A. | Solubility
B.Gas chromatography | B. | Gas chromatography | Determine the substituents by gas chromatography
B. | Gas chromatography
Purity |
Loss on drying | Not more than 10 % (105oC, 3 hours)
Sulphated ash | Not more than 1,5 % for products with viscosities of 50 mPa.s or above
Not more than 3 % for products with viscosities below 50 mPa.s
pH of a 1 % colloidal solution | Not less than 5,0 and not more than 8,0
Propylene chlorohydrins | Not more than 0,1 mg/kg
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kg
Cadmium | Not more than 1 mg/kg
Heavy metals (as Pb) | Not more than 20 mg/kgE 465 ETHYL METHYL CELLULOSE
Synonyms | Methylethylcellulose
Definition | Ethyl methyl cellulose is cellulose obtained directly from natural strains of fibrous plant material and partially etherified with methyl and ethyl groups
Chemical name | Ethyl methyl ether of cellulose
Chemical formula | The polymers contain substituted anhydroglucose units with the following general formula:
C6H7O2(OR1)(OR2)(OR3), where R1, R2R3each may be one of the following:—H—CH3—CH2CH3 | — | H | — | CH3 | — | CH2CH3
— | H
— | CH3
— | CH2CH3
Molecular weight | From about 30 000 to 40 000
Assay | Content on the anhydrous basis not less than 3,5 % and not more than 6,5 % of methoxyl groups (-OCH3) and not less than 14,5 % and not more than 19 % of ethoxyl groups (-OCH2CH3), and not less than 13,2 % and not more than 19,6 % of total alkoxyl groups, calculated as methoxyl
Description | Slightly hygroscopic white or slightly yellowish or greyish odourless and tasteless, granular or fibrous powder
Identification |
A.Solubility | A. | Solubility | Swelling in water, producing a clear to opalescent, viscous, colloidal solution. Soluble in ethanol. Insoluble in ether
A. | Solubility
Purity |
Loss on drying | Not more than 15 % for the fibrous form, and not more than 10 % for the powdered form (105oC to constant weight)
Sulphated ash | Not more than 0,6 %
pH of a 1 % colloidal solution | Not less than 5,0 and not more than 8,0
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kg
Cadmium | Not more than 1 mg/kg
Heavy metals (as Pb) | Not more than 20 mg/kgE 466 SODIUM CARBOXY METHYL CELLULOSE
Synonyms | Carboxy methyl cellulose
CMC
NaCMC
Sodium CMC
Cellulose gum
Definition | Carboxy methyl cellulose is the partial sodium salt of a carboxymethyl ether of cellulose, the cellulose being obtained directly from natural strains of fibrous plant material
Chemical name | Sodium salt of the carboxymethyl ether of cellulose
Chemical formula | The polymers contain substituted anhydroglucose units with the following general formula:
C6H7O2(OR1)(OR2)(OR3), where R1, R2R3each may be one of the following:—H—CH2COONa—CH2COOH | — | H | — | CH2COONa | — | CH2COOH
— | H
— | CH2COONa
— | CH2COOH
Molecular weight | Higher than approximately 17 000 (degree of polymerisation approximately 100)
Assay | Content on the anhydrous basis not less than 99,5 %
Description | Slightly hygroscopic white or slightly yellowish or greyish odourless and tasteless, granular or fibrous powder
Identification |
A.Solubility | A. | Solubility | Yields a viscous colloidal solution with water. Insoluble in ethanol
A. | Solubility
B.Foam test | B. | Foam test | A 0,1 % solution of the sample is shaken vigorously. No layer of foam appears. (This test permits the distinction of sodium carboxymethyl cellulose from other cellulose ethers)
B. | Foam test
C.Precipitate formation | C. | Precipitate formation | To 5 ml of a 0,5 % solution of the sample, add 5 ml of 5 % solution of copper sulphate or of aluminium sulphate. A precipitate appears. (This test permits the distinction of sodium carboxymethyl cellulose from other cellulose ethers and from gelatine, locust bean gum and tragacanth)
C. | Precipitate formation
D.Colour reaction | D. | Colour reaction | Add 0,5 g powdered carboxy methyl cellulose sodium to 50 ml of water, while stirring to produce an uniform dispersion. Continue the stirring until a clear solution is produced, and use the solution for the following test:To 1 mg of the sample, diluted with an equal volume of water, in a small test tube, add 5 drops of 1-naphthol solution. Incline the test tube, and carefully introduce down the side of the tube 2 ml of sulphuric acid so that it forms a lower layer. A red-purple colour develops at the interface
D. | Colour reaction
Purity |
Degree of substitution | Not less than 0,2 and not more than 1,5 carboxymethyl groups (-CH2COOH) per anhydroglucose unit
Loss on drying | Not more than 12 % (105oC to constant weight)
pH of a 1 % colloidal solution | Not less than 5,0 and not more than 8,5
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kg
Cadmium | Not more than 1 mg/kg
Heavy metals (as Pb) | Not more than 20 mg/kg
Total glycolate | Not more than 0,4 %, calculated as sodium glycolate on the anhydrous basis
Sodium | Not more than 12,4 % on the anhydrous basisE 468 CROSS-LINKED SODIUM CARBOXYMETHYLCELLULOSE
Synonyms | Cross-linked carboxymethyl cellulose
Cross-linked CMC
Cross-linked sodium CMC
Cross-linked cellulose gum
Definition | Cross-linked sodium carboxymethyl cellulose is the sodium salt of thermally cross-linked partly O-carboxymethylated cellulose
Chemical name | Sodium salt of the cross-linked carboxymethyl ether cellulose
Chemical formula | The polymers containing substituted anhydroglucose units with the general formula:
C6H7O2(OR1)(OR2)(OR3)
where R1, R2and R3may be any of the following:—H—CH2COONa—CH2COOH | — | H | — | CH2COONa | — | CH2COOH
— | H
— | CH2COONa
— | CH2COOH
Description | Slightly hygroscopic, white to off white, odourless powder
Identification |
A. | Shake 1 g with 100 ml of a solution containing 4 mg/kg methylene blue and allow to settle. The substance to be examined absorbs the methylene blue and settles as a blue, fibrous mass
B. | Shake 1 g with 50 ml of water. Transfer 1 ml of the mixture to a test tube, add 1 ml water and 0,05 ml of freshly prepared 40 g/l solution of alpha-naphthol in methanol. Incline the test tube and add carefully 2 ml of sulphuric acid down the side so that it forms a lower layer. A reddish-violet colour develops at the interface
C. | It gives the reaction of sodium
Purity |
Loss on drying | Not more than 6 % (105oC, 3h)
Water solubles | Not more than 10 %
Degree of substitution | Not less than 0,2 and not more than 1,5 carboxymethyl groups per anhydroglucose unit
pH of 1 % | Not less than 5,0 and not more than 7,0
Sodium content | Not more than 12,4 % on anhydrous basis
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Cadmium | Not more than 1 mg/kg
Mercury | Not more than 1 mg/kgE 469 ENZYMATICALLY HYDROLYSED CARBOXYMETHYLCELLULOSE
Synonyms | Sodium carboxymethyl cellulose, enzymatically hydrolysed
Definition | Enzymatically hydrolysed carboxymethylcellulose is obtained from carboxymethylcellulose by enzymatic digestion with a cellulase produced byTrichoderma longibrachiatum(formerlyT. reesei)
Chemical name | Carboxymethyl cellulose, sodium, partially enzymatically hydrolysed
Chemical formula | Sodium salts of polymers containing substituted anhydroglucose units with the general formula:
[C6H7O2(OH)x(OCH2COONa)y]n
where n is the degree of polymerisation
x = 1,50 to 2,80
y = 0,2 to 1,50
x + y = 3,0
(y = degree of substitution)
Formula weight | 178,14 where y = 0,20
282,18 where y = 1,50
Macromolecules: Not less than 800 (n about 4)
Assay | Not less than 99,5 %, including mono- and disaccharides, on the dried basis
Description | White or slightly yellowish or greyish, odourless, slightly hygroscopic granular or fibrous powder
Identification |
A.Solubility | A. | Solubility | Soluble in water, insoluble in ethanol
A. | Solubility
B.Foam test | B. | Foam test | Vigorously shake a 0,1 % solution of the sample. No layer of foam appears. This test distinguishes sodium carboxymethyl cellulose, whether hydrolysed or not, from other cellulose ethers and from alginates and natural gums
B. | Foam test
C.Precipitate formation | C. | Precipitate formation | To 5 ml of a 0,5 % solution of the sample add 5 ml of a 5 % solution of copper or aluminium sulphate. A precipitate appears. This test distinguishes sodium carboxymethyl cellulose, whether hydrolysed or not, from other cellulose ethers and from gelatine, carob bean gum and tragacanth gum
C. | Precipitate formation
D.Colour reaction | D. | Colour reaction | Add 0,5 g of the powdered sample to 50 ml of water, while stirring to produce a uniform dispersion. Continue the stirring until a clear solution is produced. Dilute 1 ml of the solution with 1 ml of water in a small test tube. Add 5 drops of 1-naphthol TS. Incline the tube, and carefully introduce down the side of the tube 2 ml of sulphuric acid so that it forms a lower layer. A red-purple colour develops at the interface
D. | Colour reaction
E.Viscosity (60 % solids) | E. | Viscosity (60 % solids) | Not less than 2,500 kgm-1s-1at 25oC corresponding to an average molecule weight of 5 000 D
E. | Viscosity (60 % solids)
Purity |
Loss on drying | Not more than 12 % (105oC to constant weight)
Degree of substitution | Not less than 0,2 and not more than 1,5 carboxymethyl groups per anhydroglucose unit on the dried basis
pH of a 1 % colloidal solution | Not less than 6,0 and not more than 8,5
Sodium chloride and sodium glycolate | Not more than 0,5 % singly or in combination
Residual enzyme activity | Passes test. No change in viscosity of test solution occurs, which indicates hydrolysis of the sodium carboxymethyl cellulose
Lead | Not more than 3 mg/kgE 470a SODIUM, POTASSIUM AND CALCIUM SALTS OF FATTY ACIDS
Definition | Sodium, potassium and calcium salts of fatty acids occurring in food oils and fats, these salts being obtained either from edible fats and oils or from distilled food fatty acids
Assay | Content on the anhydrous basis not less than 95 %
Description | White or creamy white light powders, flakes or semi-solids
Identification |
A.Solubility | A. | Solubility | Sodium and potassium salts: soluble in water and ethanol calcium salts:
A. | Solubility
insoluble in water, ethanol and ether
B.Positive tests for cations and for fatty acids | B. | Positive tests for cations and for fatty acids |
B. | Positive tests for cations and for fatty acids
Purity |
Sodium | Not less than 9 % and not more than 14 % expressed as Na2O
Potassium | Not less than 13 % and not more than 21,5 % expressed as K2O
Calcium | Not less than 8,5 % and not more than 13 % expressed as CaO
Unsaponifiable matter | Not more than 2 %
Free fatty acids | Not more than 3 % estimated as oleic acid
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kg
Cadmium | Not more than 1 mg/kg
Heavy metals (as Pb) | Not more than 10 mg/kg
Free alkali | Not more than 0,1 % expressed as NaOH
Matter insoluble in alcohol | Not more than 0,2 % (sodium and potassium salts only)E 470b MAGNESIUM SALTS OF FATTY ACIDS
Definition | Magnesium salts of fatty acids occurring in foods oils and fats, these salts being obtained either from edible fats and oils or from distilled food fatty acids
Assay | Content on the anhydrous basis not less than 95 %
Description | White or creamy-white light powders, flakes or semi-solids
Identification |
A.Solubility | A. | Solubility | Insoluble in water, partially soluble in ethanol and ether
A. | Solubility
B.Positive tests for magnesium and for fatty acids | B. | Positive tests for magnesium and for fatty acids |
B. | Positive tests for magnesium and for fatty acids
Purity |
Magnesium | Not less than 6,5 % and not more than 11 % expressed as MgO
Free alkali | Not more than 0,1 % expressed as MgO
Unsaponifiable matter | Not more than 2 %
Free fatty acids | Not more than 3 % estimated as oleic acid
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kg
Cadmium | Not more than 1 mg/kg
Heavy metals (as Pb) | Not more than 10 mg/kgE 471 MONO- AND DIGLYCERIDES OF FATTY ACIDS
Synonyms | Glyceryl monostearate
Glyceryl monopalmitate
Glyceryl monooleate, etc.
Monostearin, monopalmitin, monoolein, etc.
GMS (for glyceryl monostearate)
Definition | Mono- and diglycerides of fatty acids consist of mixtures of glycerol mono-, di- and triesters of fatty acids occurring in food oils and fats. They may contain small amounts of free fatty acids and glycerol
Assay | Content of mono- and diesters: not less than 70 %
Description | The product varies from a pale yellow to pale brown oily liquid to a white or slightly off-white hard waxy solid. The solids may be in the form of flakes, powders or small beads
Identification |
A.Infrared spectrum | A. | Infrared spectrum | Characteristic of a partial fatty acid ester of a polyol
A. | Infrared spectrum
B.Positive tests for glycerol and for fatty acids | B. | Positive tests for glycerol and for fatty acids |
B. | Positive tests for glycerol and for fatty acids
C.Solubility | C. | Solubility | Insoluble in water, soluble in ethanol and toluene
C. | Solubility
Purity |
Water content | Not more than 2 % (Karl Fischer method)
Acid value | Not more than 6
Free glycerol | Not more than 7 %
Polyglycerols | Not more than 4 % diglycerol and not more than 1 % higher polyglycerols both based on total glycerol content
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kg
Cadmium | Not more than 1 mg/kg
Heavy metals (as Pb) | Not more than 10 mg/kg
Total glycerol | Not less than 16 % and not more than 33 %
Sulphated ash | Not more than 0,5 % determined at 800 ± 25oC
Note:Purity criteria apply to the additive free of sodium, potassium and calcium salts of fatty acids, however these substances may be present up to a maximum level of 6 % (expressed as sodium oleate). | Note: | Purity criteria apply to the additive free of sodium, potassium and calcium salts of fatty acids, however these substances may be present up to a maximum level of 6 % (expressed as sodium oleate).
Note: | Purity criteria apply to the additive free of sodium, potassium and calcium salts of fatty acids, however these substances may be present up to a maximum level of 6 % (expressed as sodium oleate).E 472 a ACETIC ACID ESTERS OF MONO- AND DIGLYCERIDES OF FATTY ACIDS
Synonyms | Acetic acid esters of mono- and diglycerides
Acetoglycerides
Acetylated mono- and diglycerides
Acetic and fatty acid esters of glycerol
Definition | Esters of glycerol with acetic and fatty acids occurring in food fats and oils. They may contain small amounts of free glycerol, free fatty acids, free acetic acid and free glycerides
Description | Clear, mobile liquids to solids, from white to pale yellow in colour
Identification |
A.Positive tests for glycerol, for fatty acids and for acetic acid | A. | Positive tests for glycerol, for fatty acids and for acetic acid |
A. | Positive tests for glycerol, for fatty acids and for acetic acid
B.Solubility | B. | Solubility | Insoluble in water. Soluble in ethanol
B. | Solubility
Purity |
Acids other than acetic and fatty acids | Not detectable
Free glycerol | Not more than 2 %
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kg
Cadmium | Not more than 1 mg/kg
Heavy metals (as Pb) | Not more than 10 mg/kg
Total acetic acid | Not less than 9 % and not more than 32 %
Free fatty acids (and acetic acid) | Not more than 3 % estimated as oleic acid
Total glycerol | Not less than 14 % and not more than 31 %
Sulphated ash | Not more than 0,5 % determined at 800 ± 25oC
Note:Purity criteria apply to the additive free of sodium, potassium and calcium salts of fatty acids, however these substances may be present up to a maximum level of 6 % (expressed as sodium oleate). | Note: | Purity criteria apply to the additive free of sodium, potassium and calcium salts of fatty acids, however these substances may be present up to a maximum level of 6 % (expressed as sodium oleate).
Note: | Purity criteria apply to the additive free of sodium, potassium and calcium salts of fatty acids, however these substances may be present up to a maximum level of 6 % (expressed as sodium oleate).E 472 b LACTIC ACID ESTERS OF MONO- AND DIGLYCERIDES OF FATTY ACIDS
Synonyms | Lactic acid esters of mono- and diglycerides
Lactoglycerides
Mono- and diglycerides of fatty acids esterified with lactic acid
Definition | Esters of glycerol with lactic acid and fatty acids occurring in food fats and oils. They may contain small amounts of free glycerol, free fatty acids, free lactic acid and free glycerides
Description | Clear, mobile liquids to waxy solids of variable consistency, from white to pale yellow in colour
Identification |
A.Positive tests for glycerol, for fatty acids and for lactic acid | A. | Positive tests for glycerol, for fatty acids and for lactic acid |
A. | Positive tests for glycerol, for fatty acids and for lactic acid
B.Solubility | B. | Solubility | Insoluble in cold water but dispersible in hot water
B. | Solubility
Purity |
Acids other than lactic and fatty acids | Not detectable
Free glycerol | Not more than 2 %
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kg
Cadmium | Not more than 1 mg/kg
Heavy metals (as Pb) | Not more than 10 mg/kg
Total lactic acid | Not less than 13 % and not more than 45 %
Free fatty acids (and lactic acid) | Not more than 3 % estimated as oleic acid
Total glycerol | Not less than 13 % and not more than 30 %
Sulphated ash | Not more than 0,5 % determined at 800 ± 25oC
Note:Purity criteria apply to the additive free of sodium, potassium and calcium salts of fatty acids, however these substances may be present up to a maximum level of 6 % (expressed as sodium oleate). | Note: | Purity criteria apply to the additive free of sodium, potassium and calcium salts of fatty acids, however these substances may be present up to a maximum level of 6 % (expressed as sodium oleate).
Note: | Purity criteria apply to the additive free of sodium, potassium and calcium salts of fatty acids, however these substances may be present up to a maximum level of 6 % (expressed as sodium oleate).E 472 c CITRIC ACID ESTERS OF MONO- AND DIGLYCERIDES OF FATTY ACIDS
Synonyms | Citrem
Citric acid esters of mono- and diglycerides
Citroglycerides
Mono- and diglycerides of fatty acids esterified with citric acid
Definition | Esters of glycerol with citric acid and fatty acids occurring in food oils and fats. They may contain small amounts of free glycerol, free fatty acids, free citric acid and free glycerides. They may be partially or wholly neutralised with sodium hydroxide or with potassium hydroxide
Description | Yellowish or light brown liquids to waxy solids or semi-solids
Identification |
A.Positive tests for glycerol, for fatty acids and for citric acid | A. | Positive tests for glycerol, for fatty acids and for citric acid |
A. | Positive tests for glycerol, for fatty acids and for citric acid
B.Solubility | B. | Solubility | Insoluble in cold water
B. | Solubility
Dispersible in hot water
Soluble in oils and fats
Insoluble in cold ethanol
Purity |
Acids other than citric and fatty acids | Not detectable
Free glycerol | Not more than 2 %
Total glycerol | Not less than 8 % and not more than 33 %
Total citric acid | Not less than 13 % and not more than 50 %
Sulphated ash (determined at 800 ± 25oC) | Non-neutralised products: not more than 0,5 %
Partially or wholly neutralised products: not more than 10 %
Lead | Not more than 2 mg/kg
Free fatty acids | Not more than 3 % estimated as oleic acid
Note:Purity criteria apply to the additive free of sodium, potassium and calcium salts of fatty acids, however, these substances may be present up to a maximum level of 6 % (expressed as sodium oleate). | Note: | Purity criteria apply to the additive free of sodium, potassium and calcium salts of fatty acids, however, these substances may be present up to a maximum level of 6 % (expressed as sodium oleate).
Note: | Purity criteria apply to the additive free of sodium, potassium and calcium salts of fatty acids, however, these substances may be present up to a maximum level of 6 % (expressed as sodium oleate).E 472 d TARTARIC ACID ESTERS OF MONO- AND DIGLYCERIDES OF FATTY ACIDS
Synonyms | Tartaric acid esters of mono- and diglycerides
Mono- and diglycerides of fatty acids esterified with tartaric acid
Definition | Esters of glycerol with tartaric acid and fatty acids occurring in food fats and oils. They may contain small amounts of free glycerol, free fatty acids, free tartaric acid and free glycerides
Description | Sticky viscous yellowish liquids to hard yellow waxes
Identification |
A.Positive tests for glycerol, for fatty acids and for tartaric acid | A. | Positive tests for glycerol, for fatty acids and for tartaric acid |
A. | Positive tests for glycerol, for fatty acids and for tartaric acid
Purity |
Acids other than tartaric and fatty acids | Not detectable
Free glycerol | Not more than 2 %
Total glycerol | Not less than 12 % and not more than 29 %
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kg
Cadmium | Not more than 1 mg/kg
Heavy metals (as Pb) | Not more than 10 mg/kg
Total tartaric acid | Not less than 15 % and not more than 50 %
Free fatty acids | Not more than 3 % estimated as oleic acid
Sulphated ash | Not more than 0,5 % determined at 800 ± 25oC
Note:Purity criteria apply to the additive free of sodium, potassium and calcium salts of fatty acids, however these substances may be present up to a maximum level of 6 % (expressed as sodium oleate). | Note: | Purity criteria apply to the additive free of sodium, potassium and calcium salts of fatty acids, however these substances may be present up to a maximum level of 6 % (expressed as sodium oleate).
Note: | Purity criteria apply to the additive free of sodium, potassium and calcium salts of fatty acids, however these substances may be present up to a maximum level of 6 % (expressed as sodium oleate).E 472 e MONO- AND DIACETYLTARTARIC ACID ESTERS OF MONO- AND DIGLYCERIDES OF FATTY ACIDS
Synonyms | Diacetyltartaric acid esters of mono- and diglycerides
Mono-and diglycerides of fatty acids esterified with mono- and diacetyltartaric acid
Diacetyltartaric and fatty acid esters of glycerol
Definition | Mixted esters of glycerol with mono- and diacetyltartaric acids (obtained from tartaric acid) and fatty acids occurring in food fats and oils. They may contain small amounts of free glycerol, free fatty acids, free tartaric and acetic acids and their combinations, and free glycerides. Contains also tartaric and acetic esters of fatty acids
Description | Sticky viscous liquids through a fat-like consistency to yellow waxes which hydrolyse in moist air to liberate acetic acid
Identification |
A.Positive tests for glycerol, for fatty acids, for tartaric acid and for acetic acid | A. | Positive tests for glycerol, for fatty acids, for tartaric acid and for acetic acid |
A. | Positive tests for glycerol, for fatty acids, for tartaric acid and for acetic acid
Purity |
Acids other than acetic, tartaric and fatty acids | Not detectable
Free glycerol | Not more than 2 %
Total glycerol | Not less than 11 % and not more than 28 %
Sulphated ash | Not more than 0,5 % determined at 800 ± 25oC
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kg
Cadmium | Not more than 1 mg/kg
Heavy metals (as Pb) | Not more than 10 mg/kg
Total tartaric acid | Not less than 10 % and not more than 40 %
Total acetic acid | Not less than 8 % and not more than 32 %
Free fatty acids | Not more than 3 % estimated as oleic acid
Note:Purity criteria apply to the additive free of sodium, potassium and calcium salts of fatty acids, however these substances may be present up to a maximum level of 6 % (expressed as sodium oleate). | Note: | Purity criteria apply to the additive free of sodium, potassium and calcium salts of fatty acids, however these substances may be present up to a maximum level of 6 % (expressed as sodium oleate).
Note: | Purity criteria apply to the additive free of sodium, potassium and calcium salts of fatty acids, however these substances may be present up to a maximum level of 6 % (expressed as sodium oleate).E 472 f MIXED ACETIC AND TARTARIC ACID ESTERS OF MONO- AND DIGLYCERIDES OF FATTY ACIDS
Synonyms | Mono- and diglycerides of fatty acids esterified with acetic acid and tartaric acid
Definition | Esters of glycerol with acetic and tartaric acids and fatty acids occurring in food fats and oils. They may contain small amounts of free glycerol, free fatty acids, free tartaric and ecetic acids, and free glycerides. May contain mono- and diacetyltartaric esters of mono- and diglycerides of fatty acids
Description | Sticky liquids to solids, from white to pale-yellow in colour
Identification |
A.Positive tests for glycerol, for fatty acids, for tartaric acid and for acetic acid | A. | Positive tests for glycerol, for fatty acids, for tartaric acid and for acetic acid |
A. | Positive tests for glycerol, for fatty acids, for tartaric acid and for acetic acid
Purity |
Acids other than acetic, tartaric and fatty acids | Not detectable
Free glycerol | Not more than 2 %
Total glycerol | Not less than 12 % and not more than 27 %
Sulphated ash | Not more than 0,5 % determined at 800 ± 25oC
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kg
Cadmium | Not more than 1 mg/kg
Heavy metals (as Pb) | Not more than 10 mg/kg
Total acetic acid | Not less than 10 % and not more than 20 %
Total tartaric acid | Not less than 20 % and not more than 40 %
Free fatty acids | Not more than 3 % estimated as oleic acid
Note:Purity criteria apply to the additive free of sodium, potassium and calcium salts of fatty acids, however these substances may be present up to a maximum level of 6 % (expressed as sodium oleate). | Note: | Purity criteria apply to the additive free of sodium, potassium and calcium salts of fatty acids, however these substances may be present up to a maximum level of 6 % (expressed as sodium oleate).
Note: | Purity criteria apply to the additive free of sodium, potassium and calcium salts of fatty acids, however these substances may be present up to a maximum level of 6 % (expressed as sodium oleate).E 473 SUCROSE ESTERS OF FATTY ACIDS
Synonyms | Sucroesters
Sugar esters
Definition | Essentially the mono-, di- and triesters of sucrose with fatty acids occurring in food fats and oils. They may be prepared from sucrose and the methyl and ethyl esters of food fatty acids or by extraction from sucroglycerides. No organic solvent other than dimethylsulphoxide, dimethylformamide, ethyl acetate, propane-2-ol, 2-methyl-1-propanol, propylene glycol and methyl ethyl ketone may be used for their preparation
Assay | Content not less than 80 %
Description | Stiff gels, soft solids or white to slightly greyish-white powders
Identification |
A.Positive tests for sugar for fatty acids | A. | Positive tests for sugar for fatty acids |
A. | Positive tests for sugar for fatty acids
B.Solubility | B. | Solubility | Sparingly soluble in water
B. | Solubility
Soluble in ethanol
Purity |
Sulphated ash | Not more than 2 % determined at 800 ± 25oC
Free sugar | Not more than 5 %
Free fatty acids | Not more than 3 % estimated as oleic acid
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kg
Cadmium | Not more than 1 mg/kg
Heavy metals (as Pb) | Not more than 10 mg/kg
Methanol | Not more than 10 mg/kg
Dimethylsulphoxide | Not more than 2 mg/kg
Dimethylformamide | Not more than 1 mg/kg
2-methyl-1-propanol | Not more than 10 mg/kg
Ethylacetate | | Not more than 350 mg/kg, singly or in combination
Propane-2-ol
Prolyleneglycol
Methyl ethyl ketone | Not more than 10 mg/kg
Note:Purity criteria apply to the additive free of sodium, potassium and calcium salts of fatty acids, however these substances may be present up to a maximum level of 6 % (expressed as sodium oleate). | Note: | Purity criteria apply to the additive free of sodium, potassium and calcium salts of fatty acids, however these substances may be present up to a maximum level of 6 % (expressed as sodium oleate).
Note: | Purity criteria apply to the additive free of sodium, potassium and calcium salts of fatty acids, however these substances may be present up to a maximum level of 6 % (expressed as sodium oleate).E 474 SUCROGLYCERIDES
Synonyms | Sugar glycerides
Definition | Sucroglycerides are produced by reacting sucrose with an edible fat or oil to produce a mixture of essentially mono-, di- and triesters of sucrose and fatty acids together with residual mono-, di- and triglycerides from fat or oil. No organic solvents shall be used in their preparation other than cyclohexane, dimethylformamide, ethyl acetate, 2-methyl-1-propanol and propane-2-ol
Assay | Content not less than 40 % and not more than 60 % of sucrose fatty acid esters
Description | Soft solid masses, stiff gels or white to off-white powders
Identification |
A.Positive tests for sugar and for fatty acids | A. | Positive tests for sugar and for fatty acids |
A. | Positive tests for sugar and for fatty acids
B.Solubility | B. | Solubility | Insoluble in cold water
B. | Solubility
Soluble in ethanol
Purity |
Sulphated ash | Not more than 2 % determined at 800 ± 25oC
Free sugar | Not more than 5 %
Free fatty acids | Not more than 3 % estimated as oleic acid
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kg
Cadmium | Not more than 1 mg/kg
Heavy metals (as Pb) | Not more than 10 mg/kg
Methanol | Not more than 10 mg/kg
Dimethylformamide | Not more than 1 mg/kg
2-methyl-1-propanol | | Not more than 10 mg/kg, single or in combination
Cyclohexane
Ethylacetate | | Not more than 350 mg/kg, single or in combination
Propane-2-ol
Note:Purity criteria apply to the additive free of sodium, potassium and calcium salts of fatty acids, however these substances may be present up to a maximum level of 6 % (expressed as sodium oleate). | Note: | Purity criteria apply to the additive free of sodium, potassium and calcium salts of fatty acids, however these substances may be present up to a maximum level of 6 % (expressed as sodium oleate).
Note: | Purity criteria apply to the additive free of sodium, potassium and calcium salts of fatty acids, however these substances may be present up to a maximum level of 6 % (expressed as sodium oleate).E 475 POLYGLYCEROL ESTERS OF FATTY ACIDS
Synonyms | Polyglycerol fatty acid esters
Polyglycerin esters of fatty acid esters
Definition | Polyglycerol esters of fatty acids are produced by the esterification of polyglycerol with food fats and oils or with fatty acids occurring in foods fats and oils. The polyglycerol moiety is predominantly di-, tri- and tetraglycerol and contains not more than 10 % of polyglycerols equal to or higher than heptaglycerol
Assay | Content of total fatty acid ester not less than 90 %
Description | Light yellow to amber, oily to very viscous liquids; light tan to medium brown, plastic or soft solids; and light tan to brown, hard, waxy solids
Identification |
A.Positive tests for glycerol, for polyglycerols and for fatty acids | A. | Positive tests for glycerol, for polyglycerols and for fatty acids |
A. | Positive tests for glycerol, for polyglycerols and for fatty acids
B.Solubility | B. | Solubility | The esters range from very hydrophilic to very lipophilic, but as a class tend to be dispersible in water and soluble in organic solvents and oils
B. | Solubility
Purity |
Sulphated ash | Not more than 0,5 % determined at 800 ± 25oC
Acids other than fatty acids | Not detectable
Free fatty acids | Not more than 6 % estimated as oleic acid
Total glycerol and polyglycerol | Not less than 18 % and not more than 60 %
Free glycerol and polyglycerol | Not more than 7 %
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kg
Cadmium | Not more than 1 mg/kg
Heavy metals (as Pb) | Not more than 10 mg/kg
Note:Purity criteria apply to the additive free of sodium, potassium and calcium salts of fatty acids, however these substances may be present up to a maximum level of 6 % (expressed as sodium oleate). | Note: | Purity criteria apply to the additive free of sodium, potassium and calcium salts of fatty acids, however these substances may be present up to a maximum level of 6 % (expressed as sodium oleate).
Note: | Purity criteria apply to the additive free of sodium, potassium and calcium salts of fatty acids, however these substances may be present up to a maximum level of 6 % (expressed as sodium oleate).E 476 POLYGLYCEROL POLYRICINOLEATE
Synonyms | Glycerol esters of condensed castor oil fatty acids
Polyglycerol esters of polycondensed fatty acids from castor oil
Polyglycerol esters of interesterified ricinoleic acid
PGPR
Definition | Polyglycerol polyricinoleate is prepared by the esterification of polyglycerol with condensed castor oil fatty acids
Description | Clear, highly viscous liquid
Identification |
A.Solubility | A. | Solubility | Insoluble in water and in ethanol.
A. | Solubility
Soluble in ether, hydrocarbons and halogenated hydrocarbons
B.Positive tests for glycerol, polyglycerol and for ricinoleic acid | B. | Positive tests for glycerol, polyglycerol and for ricinoleic acid |
B. | Positive tests for glycerol, polyglycerol and for ricinoleic acid
C.Refractive index [n]65 | C. | Refractive index [n]65 | Between 1,4630 and 1,4665
C. | Refractive index [n]65
Purity |
Polyglycerols | The polyglycerol moiety shall be composed of not less than 75 % of di-, tri- and tetraglycerols and shall contain not more than 10 % of polyglycerols equal to or higher than heptaglycerol
Hydroxyl value | Not less than 80 and not more than 100
Acid value | Not more than 6
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kg
Cadmium | Not more than 1 mg/kg
Heavy metals (as Pb) | Not more than 10 mg/kgE 477 PROPANE-1,2-DIOL ESTERS OF FATTY ACIDS
Synonyms | Propylene glycol esters of fatty acids
Definition | Consists of mixtures of propane-1,2-diol mono- and diesters of fatty acids occurring in food fats and oils. The alcohol moiety is exclusively propane-1,2-diol together with dimer and traces of trimer. Organic acids other than food fatty acids are absent
Assay | Content of total fatty acid ester not less than 85 %
Description | Clear liquids or waxy white flakes, beads or solids having a bland odour
Identification |
A.Positive tests for propylene glycol and for fatty acids | A. | Positive tests for propylene glycol and for fatty acids |
A. | Positive tests for propylene glycol and for fatty acids
Purity |
Sulphated ash | Not more than 0,5 % determined at 800 ± 25oC
Acids other than fatty acids | Not detectable
Free fatty acids | Not more than 6 % estimated as oleic acid
Total propane-1,2-diol | Not less than 11 % and not more than 31 %
Free propane-1,2-diol | Not more than 5 %
Dimer and trimer of propylene glycol | Not more than 0,5 %
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kg
Cadmium | Not more than 1 mg/kg
Heavy metals (as Pb) | Not more than 10 mg/kg
Note:Purity criteria apply to the additive free of sodium, potassium and calcium salts of fatty acids, however these substances may be present up to a maximum level of 6 % (expressed as sodium oleate). | Note: | Purity criteria apply to the additive free of sodium, potassium and calcium salts of fatty acids, however these substances may be present up to a maximum level of 6 % (expressed as sodium oleate).
Note: | Purity criteria apply to the additive free of sodium, potassium and calcium salts of fatty acids, however these substances may be present up to a maximum level of 6 % (expressed as sodium oleate).E 479 b THERMALLY OXIDISED SOYA BEAN OIL INTERACTED WITH MONO- AND DIGLYCERIDES OF FATTY ACIDS
Synonyms | TOSOM
Definition | Thermally oxidised soya bean oil interacted with mono- and diglycerides of fatty acids is a complex mixture of esters of glycerol and fatty acids found in edible fat and fatty acids from thermally oxidised soya bean oil. It is produced by interaction and desodorisation under vacuum at 130oC of 10 % of thermally oxidised soya bean oil and 90 % mono- and diglycerides of food fatty acids. Soya bean oil is exclusively made from natural strains of soya beans
Description | Pale yellow to light brown a waxy or solid consistency
Identification |
A.Solubility | A. | Solubility | Insoluble in water. Soluble in hot oil or fat
A. | Solubility
Purity |
Melting range | 55-65oC
Free fatty acids | Not more than 1,5 % estimated as oleic acid
Free glycerol | Not more than 2 %
Total fatty acids | 83-90 %
Total glycerol | 16-22 %
Fatty acid methyl esters, not forming adduct with urea | Not more than 9 % of total fatty acid methyl esters
Fatty acids, insoluble in petroleum ether | Not more than 2 % of total fatty acids
Peroxide value | Not more than 3
Epoxides | Not more than 0,03 % oxirane oxygen
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kg
Cadmium | Not more than 1 mg/kg
Heavy metals (as Pb) | Not more than 10 mg/kgE 481 SODIUM STEAROYL-2-LACTYLATE
Synonyms | Sodium stearoyl lactylate
Sodium stearoyl lactate
Definition | A mixture of the sodium salts of stearoyl lactylic acids and its polymers and minor amounts of sodium salts of other related acids, manufactured by the reaction of stearic acid and lactic acid. Other food fatty acids may also be present, free or esterified, due to their presence in the stearic acid used
Chemical names | Sodium di-2-stearoyl lactate
Sodium di(2-stearoyloxy)propionate
Einecs | 246-929-7
Chemical formula (major components) | C21H39O4Na
C19H35O4Na
Description | White or slightly yellowish powder or brittle solid with a characteristic odour
Identification |
A.Positive tests for sodium, for fatty acids and for lactic acid | A. | Positive tests for sodium, for fatty acids and for lactic acid |
A. | Positive tests for sodium, for fatty acids and for lactic acid
B.Solubility | B. | Solubility | Insoluble in water. Soluble in ethanol
B. | Solubility
Purity |
Sodium | Not less than 2,5 % and not more than 5 %
Ester value | Not less than 90 and not more than 190
Acid value | Not less than 60 and not more than 130
Total lactic acid | Not less than 15 % and not more than 40 %
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kg
Cadmium | Not more than 1 mg/kg
Heavy metals (as Pb) | Not more than 10 mg/kgE 482 CALCIUM STEAROYL-2-LACTYLATE
Synonyms | Calcium stearoyl lactate
Definition | A mixture of the calcium salts of stearoyl lactylic acids and its polymers and minor amounts of calcium salts of other related acids, manufactured by the reaction of stearic acid and lactic acid. Other food fatty acids may also be present, free or esterified, due to their presence in the stearic acid used
Chemical name | Calcium di-2-stearoyl lactate
Calcium di(2-stearoyloxy)propionate
Einecs | 227-335-7
Chemical formula | C42H78O8Ca
C38H70O8Ca
Description | White or slightly yellowish powder or brittle solid with a characteristic odour
Identification |
A.Positive tests for calcium, for fatty acids and for lactid acid | A. | Positive tests for calcium, for fatty acids and for lactid acid |
A. | Positive tests for calcium, for fatty acids and for lactid acid
B.Solubility | B. | Solubility | Slightly soluble in hot water
B. | Solubility
Purity |
Calcium | Not less than 1 % and not more than 5,2 %
Ester value | Not less than 125 and not more than 190
Total lactic acid | Not less than 15 % and not more than 40 %
Acid value | Not less than 50 and not more than 130
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kg
Cadmium | Not more than 1 mg/kg
Heavy metals (as Pb) | Not more than 10 mg/kgE 483 STEARYL TARTRATE
Synonyms | Stearyl palmityl tartrate
Definition | Product of the esterification of tartaric acid with commercial stearyl alcohol, which consists essentially of stearyl and palmityl alcohols. It consists mainly of diester, with minor amounts of monoester and of unchanged starting materials
Chemical name | Distearyl tartrate
Dipalmityl tartrate
Chemical formula | C38H74O6to C40H78O6
Molecular weight | 627 to 655
Assay | Content of total ester not less than 90 % corresponding to an ester value of not less than 163 and not more than 180
Description | Cream-coloured unctuous solid (at 25oC)
Identification |
A.Positive tests for tartare | A. | Positive tests for tartare |
A. | Positive tests for tartare
B.Melting range | B. | Melting range | Between 67oC and 77oC. After saponification the saturated long chain fatty alcohols have a melting range of 49oC to 55oC
B. | Melting range
Purity |
Hydroxyl value | Not less than 200 and not more than 220
Acid value | Not more than 5,6
Total tartaric acid content | Not less than 18 % and not more than 35 %
Sulphated ash | Not more than 0,5 % determined at 800 ± 25oC
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kg
Cadmium | Not more than 1 mg/kg
Heavy metals (as Pb) | Not more than 10 mg/kg
Unsaponifiable matter | Not less than 77 % and not more than 83 %
Iodine value | Not more than 4 (Wijs method)E 491 SORBITAN MONOSTEARATE
Definition | A mixture of the partial esters of sorbitol and its anhydrides with edible, commercial stearic acid
Einecs | 215-664-9
Assay | Content not less than 95 % of a mixture of sorbitol, sorbitan, and isosorbide esters
Description | Light, cream- to tan-coloured beads or flakes or a hard, waxy solid with a slight characteristic odour
Identification |
A.Solubility | A. | Solubility | Soluble at temperatures above its melting point in toluene, dioxane, carbon tetrachloride, ether, methanol, ethanol and aniline; insoluble in petroleum ether and acetone; insoluble in cold water but dispersible in warm water; soluble with haze at temperatures above 50oC in mineral oil and ethyl acetate
A. | Solubility
B.Congealing range | B. | Congealing range | 50-52oC
B. | Congealing range
C.Infrared absorption spectrum | C. | Infrared absorption spectrum | Characteristic of a partial fatty acid ester of a polyol
C. | Infrared absorption spectrum
Purity |
Water | Not more than 2 % (Karl Fischer method)
Sulphated ash | Not more than 0,5 %
Acid value | Not more than 10
Saponification value | Not less than 147 and not more than 157
Hydroxyl value | Not less than 235 and not more than 260
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kg
Cadmium | Not more than 1 mg/kg
Heavy metals (as Pb) | Not more than 10 mg/kgE 492 SORBITAN TRISTEARATE
Definition | A mixture of the partial esters of sorbitol and its anhydrides with edible, commercial stearic acid
Einecs | 247-891-4
Assay | Content not less than 95 % of a mixture of sorbitol, sorbitan, and isosorbide esters
Description | Light, cream- to tan-coloured beads or flakes or hard, waxy solid with a slight odour
Identification |
A.Solubility | A. | Solubility | Slightly soluble in toluene, ether, carbon tetrachloride and ethyl acetate; dispersible in petroleum ether, mineral oil, vegetable oils, acetone and dioxane; insoluble in water, methanol and ethanol
A. | Solubility
B.Congealing range | B. | Congealing range | 47-50oC
B. | Congealing range
C.Infrared absorption spectrum | C. | Infrared absorption spectrum | Characteristic of a partial fatty acid ester of a polyol
C. | Infrared absorption spectrum
Purity |
Water | Not more than 2 % (Karl Fischer method)
Sulphated ash | Not more than 0,5 %
Acid value | Not more than 15
Saponification value | Not less than 176 and not more than 188
Hydroxyl value | Not less than 66 and not more than 80
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kg
Cadmium | Not more than 1 mg/kg
Heavy metals (as Pb) | Not more than 10 mg/kgE 493 SORBITAN MONOLAURATE
Definition | A mixture of the partial esters of sorbitol and its anhydrides with edible, commercial lauric acid
Einecs | 215-663-3
Assay | Content not less than 95 % of a mixture of sorbitol, sorbitan, and isosorbide esters
Description | Amber-coloured oily viscous liquid, light cream to tan-coloured beads or flakes or a hard, waxy solid with a slight odour
Identification |
A.Solubility | A. | Solubility | Dispersible in hot and cold water
A. | Solubility
B.Infrared absorption spectrum | B. | Infrared absorption spectrum | Characteristic of a partial fatty acid ester of a polyol
B. | Infrared absorption spectrum
Purity |
Water | Not more than 2 % (Karl Fischer method)
Sulphated ash | Not more than 0,5 %
Acid value | Not more than 7
Saponification value | Not less than 155 and not more than 170
Hydroxyl value | Not less than 330 and not more than 358
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kg
Cadmium | Not more than 1 mg/kg
Heavy metals (as Pb) | Not more than 10 mg/kgE 494 SORBITAN MONOOLEATE
Definition | A mixture of the partial esters of sorbitol and its anhydrides with edible, commercial oleic acid. Major constituent is 1,4-sorbitan monooleate. Other constituents include isosorbide monooleate, sorbitan dioleate and sorbitan trioleate
Einecs | 215-665-4
Assay | Content not less than 95 % of a mixture of sorbitol, sorbitan and isosorbide esters
Description | Amber-coloured viscous liquid, light cream to tan-coloured beads or flakes or a hard, waxy solid with a slight characteristic odour
Identification |
A.Solubility | A. | Solubility | Soluble at temperatures above its melting point in ethanol, ether, ethyl acetate, aniline, toluene, dioxane, petroleum ether and carbon tetrachloride. Insoluble in cold water, dispersible in warm water
A. | Solubility
B.Iodine value | B. | Iodine value | The residue of oleic acid, obtained from the saponification of the sorbitan monoleate in assay, has a iodine value between 80 and 100
B. | Iodine value
Purity |
Water | Not more than 2 % (Karl Fischer method)
Sulphated ash | Not more than 0,5 %
Acid value | Not more than 8
Saponification value | Not less than 145 and not more than 160
Hydroxyl value | Not less than 193 and not more than 210
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kg
Cadmium | Not more than 1 mg/kg
Heavy metals (as Pb) | Not more than 10 mg/kgE 495 SORBITAN MONOPALMITATE
Synonyms | Sorbitan palmitate
Definition | A mixture of the partial esters of sorbitol and its anhydrides with edible, commercial palmitic acid
Einecs | 247-568-8
Assay | Content not less than 95 % of a mixture of sorbitol, sorbitan, and isosorbide esters
Description | Light cream to tan-coloured beads or flakes or a hard, waxy solid with a slight characteristic odour
Identification |
A.Solubility | A. | Solubility | Soluble at temperatures above its melting point in ethanol, methanol, ether, ethyl acetate, aniline, toluene, dioxane, petroleum ether and carbon tetrachloride. Insoluble in cold water but dispersible in warm water
A. | Solubility
B.Congealing range | B. | Congealing range | 45-47oC
B. | Congealing range
C.Infrared absorption spectrum | C. | Infrared absorption spectrum | Characteristic of a partial fatty acid ester of polyol
C. | Infrared absorption spectrum
Purity |
Water | Not more than 2 % (Karl Fischer method)
Sulphate ash | Not more than 0,5 %
Acid value | Not more than 7,5
Saponification value | Not less than 140 and not more than 150
Hydroxyl value | Not less than 270 and not more than 305
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kg
Cadmium | Not more than 1 mg/kg
Heavy metals (as Pb) | Not more than 10 mg/kgE 500(i) SODIUM CARBONATE
Synonyms | Soda ash
Definition |
Chemical name | Sodium carbonate
Einecs | 207-838-8
Chemical formula | Na2CO3· nH2O (n = 0, 1 or 10)
Molecular weight | 106,00 (anhydrous)
Assay | Content not less than 99 % of Na2CO3on the anhydrous basis
Description | Colourless crystals or white, granular or crystalline powder
The anhydrous form is hygroscopic, the decahydrate efflorescent
Identification |
A.Positive tests for sodium and for carbonate | A. | Positive tests for sodium and for carbonate |
A. | Positive tests for sodium and for carbonate
B.Solubility | B. | Solubility | Freely soluble in water. Insoluble in ethanol
B. | Solubility
Purity |
Loss on drying | Not more than 2 % (anhydrous), 15 % (monohydrate) or 55 %-65 % (decahydrate) (70oC raising gradually to 300oC, to constant weight)
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kgE 500(ii) SODIUM HYDROGEN CARBONATE
Synonyms | Sodium bicarbonate, sodium acid carbonate, bicarbonate of soda, baking soda
Definition |
Chemical name | Sodium hydrogen carbonate
Einecs | 205-633-8
Chemical formula | NaHCO3
Molecular weight | 84,01
Assay | Content not less than 99 % on the anhydrous basis
Description | Colourless or white crystalline masses or crystalline powder
Identification |
A.Positive tests for sodium and for carbonate | A. | Positive tests for sodium and for carbonate |
A. | Positive tests for sodium and for carbonate
B.pH of a 1 % solution | B. | pH of a 1 % solution | Between 8,0 and 8,6
B. | pH of a 1 % solution
C.Solubility | C. | Solubility | Soluble in water. Insoluble in ethanol
C. | Solubility
Purity |
Loss on drying | Not more than 0,25 % (over silica gel, 4h)
Ammonium salts | No odour of ammonia detectable after heating
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kgE 500(iii) SODIUM SESQUICARBONATE
Definition |
Chemical name | Sodium monohydrogen dicarbonate
Einecs | 208-580-9
Chemical formula | Na2(CO)3· NaHCO3· 2H2O
Molecular weight | 226,03
Assay | Content between 35,0 % and 38,6 % of NaHCO3and between 46,4 % and 50,0 % of Na2CO3
Description | White flakes, crystals or crystalline powder
Identification |
A.Positive tests for sodium and for carbonate | A. | Positive tests for sodium and for carbonate |
A. | Positive tests for sodium and for carbonate
B.Solubility | B. | Solubility | Freely soluble in water
B. | Solubility
Purity |
Sodium chloride | Not more than 0,5 %
Iron | Not more than 20 mg/kg
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kgE 501(i) POTASSIUM CARBONATE
Definition |
Chemical name | Potassium carbonate
Einecs | 209-529-3
Chemical formula | K2CO3· nH2O (n = 0 or 1,5 )
Molecular weight | 138,21 (anhydrous)
Assay | Content not less than 99,0 % on the anhydrous basis
Description | White, very deliquescent powder.
The hydrate occurs as small, white, translucent crystals or granules
Identification |
A.Positive tests for potassium and for carbonate | A. | Positive tests for potassium and for carbonate |
A. | Positive tests for potassium and for carbonate
B.Solubility | B. | Solubility | Very soluble in water. Insoluble in ethanol
B. | Solubility
Purity |
Loss on drying | Not more than 5 % (anhydrous) or 18 % (hydrate) (180oC, 4h)
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kgE 501(ii) POTASSIUM HYDROGEN CARBONATE
Synonyms | Potassium bicarbonate, acid potassium carbonate
Definition |
Chemical name | Potassium hydrogen carbonate
Einecs | 206-059-0
Chemical formula | KHCO3
Molecular weight | 100,11
Assay | Content not less than 99,0 % and not more than 101,0 % KHCO3on the anhydrous basis
Description | Colourless crystals or white powder or granules
Identification |
A.Positive tests for potassium and for carbonate | A. | Positive tests for potassium and for carbonate |
A. | Positive tests for potassium and for carbonate
B.Solubility | B. | Solubility | Freely soluble in water. Insoluble in ethanol
B. | Solubility
Purity |
Loss on drying | Not more than 0,25 % (over silica gel, 4h)
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kgE 503(i) AMMONIUM CARBONATE
Definition | Ammonium carbonate consists of ammonium carbamate, ammonium carbonate and ammonium hydrogen carbonate in varying proportions
Chemical name | Ammonium carbonate
Einecs | 233-786-0
Chemical formula | CH6N2O2, CH8N2O3and CH5NO3
Molecular weight | Ammonium carbamate 78,06 ; ammonium carbonate 98,73 ; ammonium hydrogen carbonate 79,06
Assay | Content not less than 30,0 % and not more than 34,0 % of NH3
Description | White powder or hard, white or translucent masses or crystals. Becomes opaque on exposure to air and is finally converted into white porous lumps or powder (of ammonium bicarbonate) due to loss of ammonia and carbon dioxide
Identification |
A.Positive tests for ammonium and for carbonate | A. | Positive tests for ammonium and for carbonate |
A. | Positive tests for ammonium and for carbonate
B.pH of a 5 % solution | B. | pH of a 5 % solution | about 8,6
B. | pH of a 5 % solution
C.Solubility | C. | Solubility | Soluble in water
C. | Solubility
Purity |
Non-volatile matter | Not more than 500 mg/kg
Chlorides | Not more than 30 mg/kg
Sulphate | Not more than 30 mg/kg
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kgE 503(ii) AMMONIUM HYDROGEN CARBONATE
Synonyms | Ammonium bicarbonate
Definition |
Chemical name | Ammonium hydrogen carbonate
Einecs | 213-911-5
Chemical formula | CH5NO3
Molecular weight | 79,06
Assay | Content not less than 99,0 %
Description | White crystals or crystalline powder
Identification |
A.Positive tests for ammonium and for carbonate | A. | Positive tests for ammonium and for carbonate |
A. | Positive tests for ammonium and for carbonate
B.pH of a 5 % solution | B. | pH of a 5 % solution | about 8,0
B. | pH of a 5 % solution
C.Solubility | C. | Solubility | Freely soluble in water. Insoluble in ethanol
C. | Solubility
Purity |
Non-volatile matter | Not more than 500 mg/kg
Chlorides | Not more than 30 mg/kg
Sulphate | Not more than 30 mg/kg
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kgE 504(ii) MAGNESIUM HYDROXIDE CARBONATE
Synonyms | Magnesium hydrogen carbonate, magnesium subcarbonate (light or heavy), hydrated basic magnesium carbonate, magnesium carbonate hydroxide
Definition |
Chemical name | Magnesium carbonate hydroxide hydrated
Einecs | 235-192-7
Chemical formula | 4MgCO3Mg(OH)25H2O
Molecular weight | 485
Assay | Mg content not less than 40,0 % and not more than 45,0 % calculated as MgO
Description | Light, white friable mass or bulky white powder
Identification |
A.Positive tests for magnesium and for carbonate | A. | Positive tests for magnesium and for carbonate |
A. | Positive tests for magnesium and for carbonate
B.Solubility | B. | Solubility | Practically insoluble in water. Insoluble in ethanol
B. | Solubility
Purity |
Acid insoluble matter | Not more than 0,05 %
Water soluble matter | Not more than 1,0 %
Calcium | Not more than 1,0 %
Arsenic | Not more than 3 mg/kg
Lead | Not more than 10 mg/kg
Mercury | Not more than 1 mg/kgE 507 HYDROCHLORIC ACID
Synonyms | Hydrogen chloride, muriatic acid
Definition |
Chemical name | Hydrochloric acid
Einecs | 231-595-7
Chemical formula | HCl
Molecular weight | 36,46
Assay | Hydrochloric acid is commercially available in varying concentrations. Concentrated hydrochloric acid contains not less than 35,0 % HCl
Description | Clear, colourless or slightly yellowish, corrosive liquid having a pungent odour
Identification |
A.Positive tests for acid and for chloride | A. | Positive tests for acid and for chloride |
A. | Positive tests for acid and for chloride
B.Solubility | B. | Solubility | Soluble in water and in ethanol
B. | Solubility
Purity |
Total organic compounds | Total organic compounds (non-fluorine containing): not more than 5 mg/kg
Benzene: not more than 0,05 mg/kg
Fluorinated compounds (total): not more than 25 mg/kg
Non-volatile matter | Not more than 0,5 %
Reducing substances | Not more than 70 mg/kg (as SO2)
Oxidising substances | Not more than 30 mg/kg (as Cl2)
Sulphate | Not more than 0,5 %
Iron | Not more than 5 mg/kg
Arsenic | Not more than 1 mg/kg
Lead | Not more than 1 mg/kg
Mercury | Not more than 1 mg/kgE 508 POTASSIUM CHLORIDE
Synonyms | Sylvine
Sylvite
Definition |
Chemical name | Potassium chloride
Einecs | 231-211-8
Chemical formulae | KCl
Molecular weight | 74,56
Assay | Content not less than 99 % on the dried basis
Description | Colourless, elongated, prismatic or cubital crystals or white granular powder. Odourless
Identification |
A.Solubility | A. | Solubility | Freely soluble in water. Insoluble in ethanol
A. | Solubility
B.Positive tests for potassium and for chloride | B. | Positive tests for potassium and for chloride |
B. | Positive tests for potassium and for chloride
Purity |
Loss on drying | Not more than 1 % (105oC, 2 hours)
Sodium | Negative test
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kg
Cadmium | Not more than 1 mg/kg
Heavy metals (as Pb) | Not more than 10 mg/kgE 509 CALCIUM CHLORIDE
Definition |
Chemical name | Calcium chloride
Einecs | 233-140-8
Chemical formula | CaCl2· nH2O (n = 0,2 or 6)
Molecular weight | 110,99 (anhydrous), 147,02 (dihydrate), 219,08 (hexahydrate)
Assay | Content not less than 93,0 % on the anhydrous basis
Description | White, odourless, hygroscopic powder or deliquescent crystals
Identification |
A.Positive tests for calcium and for chloride | A. | Positive tests for calcium and for chloride |
A. | Positive tests for calcium and for chloride
B.Solubility | B. | Solubility | Anhydrous calcium chloride: freely soluble in water and ethanol
B. | Solubility
Dihydrate: freely soluble in water, soluble in ethanol
Hexahydrate: very soluble in water and ethanol
Purity |
Magnesium and alkali salts | Not more than 5 % on the anhydrous basis
Fluoride | Not more than 40 mg/kg
Arsenic | Not more than 3 mg/kg
Lead | Not more than 10 mg/kg
Mercury | Not more than 1 mg/kgE 511 MAGNESIUM CHLORIDE
Definition |
Chemical name | Magnesium chloride
Einecs | 232-094-6
Chemical formula | MgCl2· 6H2O
Molecular weight | 203,30
Assay | Content not less than 99,0 %
Description | Colourless, odourless, very deliquescent flakes or crystals
Identification |
A.Positive tests for magnesium and for chloride | A. | Positive tests for magnesium and for chloride |
A. | Positive tests for magnesium and for chloride
B.Solubility | B. | Solubility | Very soluble in water, freely soluble in ethanol
B. | Solubility
Purity |
Ammonium | Not more than 50 mg/kg
Arsenic | Not more than 3 mg/kg
Lead | Not more than 10 mg/kg
Mercury | Not more than 1 mg/kgE 512 STANNOUS CHLORIDE
Synonyms | Tin chloride, tin dichloride
Definition |
Chemical name | Stannous chloride dihydrate
Einecs | 231-868-0
Chemical formula | SnCl2· 2H2O
Molecular weight | 225,63
Assay | Content not less than 98,0 %
Description | Colourless or white crystals
May have a slight odour of hydrochloric acid
Identification |
A.Positive tests for tin (II) and for chloride | A. | Positive tests for tin (II) and for chloride |
A. | Positive tests for tin (II) and for chloride
B.Solubility | B. | Solubility | Water: soluble in less than its own weight of water, but it forms an insoluble basic salt with excess water
B. | Solubility
Ethanol: soluble
Purity |
Sulphate | Not more than 30 mg/kg
Arsenic | Not more than 2 mg/kg
Mercury | Not more than 1 mg/kg
Lead | Not more than 5 mg/kgE 513 SULPHURIC ACID
Synonyms | Oil of vitriol, dihydrogen sulphate
Definition |
Chemical name | Sulphuric acid
Einecs | 231-639-5
Chemical formula | H2SO4
Molecular weight | 98,07
Assay | Sulphuric acid is commercially available in varying concentrations. The concentrated form contains not less than 96,0 %
Description | Clear, colourless or slightly brown, very corrosive oily liquid
Identification |
A.Positive tests for acid and for sulphate | A. | Positive tests for acid and for sulphate |
A. | Positive tests for acid and for sulphate
B.Solubility | B. | Solubility | Miscible with water, with generation of much heat, also with ethanol
B. | Solubility
Purity |
Ash | Not more than 0,02 %
Reducing matter | Not more than 40 mg/kg (as SO2)
Nitrate | Not more than 10 mg/kg (on H2SO4basis)
Chloride | Not more than 50 mg/kg
Iron | Not more than 20 mg/kg
Selenium | Not more than 20 mg/kg
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kgE 514(i) SODIUM SULPHATE
Definition |
Chemical name | Sodium sulphate
Chemical formula | Na2SO4· nH2O (n = 0 or 10)
Molecular weight | 142,04 (anhydrous)
322,04 (decahydrate)
Assay | Content not less than 99,0 % on the anhydrous basis
Description | Colourless crystals or a fine, white, crystalline powder
The decahydrate is efflorescent
Identification |
A.Positive tests for sodium and for sulphate | A. | Positive tests for sodium and for sulphate |
A. | Positive tests for sodium and for sulphate
B.Acidity of a 5 % solution: neutral or slightly alkaline to litmus paper | B. | Acidity of a 5 % solution: neutral or slightly alkaline to litmus paper |
B. | Acidity of a 5 % solution: neutral or slightly alkaline to litmus paper
Purity |
Loss on drying | Not more than 1,0 % (anhydrous) or not more than 57 % (decahydrate) at 130 °C
Selenium | Not more than 30 mg/kg
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kgE 514(ii) SODIUM HYDROGEN SULPHATE
Synonyms | Acid sodium sulphate, sodium bisulphate, nitre cake
Definition |
Chemical name | Sodium hydrogen sulphate
Chemical formula | NaHSO4
Molecular weight | 120,06
Assay | Content not less than 95,2 %
Description | White, odourless crystals or granules
Identification |
A.Positive tests for sodium and for sulphate | A. | Positive tests for sodium and for sulphate |
A. | Positive tests for sodium and for sulphate
B.Solutions are strongly acidic | B. | Solutions are strongly acidic |
B. | Solutions are strongly acidic
Purity |
Loss on drying | Not more than 0,8 %
Water insoluble | Not more than 0,05 %
Selenium | Not more than 30 mg/kg
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kgE 515(i) POTASSIUM SULPHATE
Definition |
Chemical name | Potassium sulphate
Chemical formula | K2SO4
Molecular weight | 174,25
Assay | Content not less than 99,0 %
Description | Colourless or white crystals or crystalline powder
Identification |
A.Positive tests for potassium and for sulphate | A. | Positive tests for potassium and for sulphate |
A. | Positive tests for potassium and for sulphate
B.pH of a 5 % solution | B. | pH of a 5 % solution | Between 5,5 and 8,5
B. | pH of a 5 % solution
C.Solubility | C. | Solubility | Freely soluble in water, insoluble in ethanol
C. | Solubility
Purity |
Selenium | Not more than 30 mg/kg
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kgE 515(ii) POTASSIUM HYDROGEN SULPHATE
Definition |
Synonyms | Potassium bisulphate, potassium acid sulphate
Chemical name | Potassium hydrogen sulphate
Chemical formula | KHSO4
Molecular weight | 136,17
Assay | Content not less than 99 %
Melting point | 197oC
Description | White deliquescent crystals, pieces or granules
Identification |
A.Positive test for potassium | A. | Positive test for potassium |
A. | Positive test for potassium
B.Solubility | B. | Solubility | Freely soluble in water, insoluble in ethanol
B. | Solubility
Purity |
Selenium | Not more than 30 mg/kg
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kgE 516 CALCIUM SULPHATE
Synonyms | Gypsum, selenite, anhydrite
Definition |
Chemical name | Calcium sulphate
Einecs | 231-900-3
Chemical formula | CaSO4· nH2O (n = 0 or 2)
Molecular weight | 136,14 (anhydrous), 172,18 (dihydrate)
Assay | Content not less than 99,0 % on the anhydrous basis
Description | Fine, white to slightly yellowish-white odourless powder
Identification |
A.Positive tests for calcium and for sulphate | A. | Positive tests for calcium and for sulphate |
A. | Positive tests for calcium and for sulphate
B.Solubility | B. | Solubility | Slightly soluble in water, insoluble in ethanol
B. | Solubility
Purity |
Loss on drying | Anhydrous: not more than 1,5 % (250oC, constant weight)
Dihydrate: not more than 23 % (ibid.)
Fluoride | Not more than 30 mg/kg
Selenium | Not more than 30 mg/kg
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kgE 517 AMMONIUM SULPHATE
Definition |
Chemical name | Ammonium sulphate
Einecs | 231-984-1
Chemical formula | (NH4)2SO4
Molecular weight | 132,14
Assay | Content not less than 99,0 % and not more than 100,5 %
Description | White powder, shining plates or crystalline fragments
Identification |
A.Positive tests for ammonium and for sulphate | A. | Positive tests for ammonium and for sulphate |
A. | Positive tests for ammonium and for sulphate
B.Solubility | B. | Solubility | Freely soluble in water, insoluble in ethanol
B. | Solubility
Purity |
Loss on ignition | Not more than 0,25 %
Selenium | Not more than 30 mg/kg
Lead | Not more than 5 mg/kgE 520 ALUMINIUM SULPHATE
Synonyms | Alum
Definition |
Chemical name | Aluminium sulphate
Einecs | 233-135-0
Chemical formula | Al2(SO4)3
Molecular weight | 342,13
Assay | Content not less than 99,5 % on the ignited basis
Description | White powder, shining plates or crystalline fragments
Identification |
A.Positive tests for aluminium and for sulphateB.pH of a 5 % solution 2,9 or above | A. | Positive tests for aluminium and for sulphate | B. | pH of a 5 % solution 2,9 or above |
A. | Positive tests for aluminium and for sulphate
B. | pH of a 5 % solution 2,9 or above
C.Solubility | C. | Solubility | Freely soluble in water, insoluble in ethanol
C. | Solubility
Purity |
Loss on ignition | Not more than 5 % (500oC, 3h)
Alkalies and alkaline earths | Not more than 0,4 %
Selenium | Not more than 30 mg/kg
Fluoride | Not more than 30 mg/kg
Arsenic | Not more than 3 mg/kg
Lead | Not more than 10 mg/kg
Mercury | Not more than 1 mg/kgE 521 ALUMINIUM SODIUM SULPHATE
Synonyms | Soda alum, sodium alum
Definition |
Chemical name | Aluminium sodium sulphate
Einecs | 233-277-3
Chemical formula | AlNa(SO4)2· nH2O (n = 0 or 12)
Molecular weight | 242,09 (anhydrous)
Assay | Content on the anhydrous basis not less than 96,5 % (anhydrous) and 99,5 % (dodecahydrate)
Description | Transparent crystals or white crystalline powder
Identification |
A.Positive tests for aluminium, for sodium and for sulphate | A. | Positive tests for aluminium, for sodium and for sulphate |
A. | Positive tests for aluminium, for sodium and for sulphate
B.Solubility | B. | Solubility | Dodecahydrate is freely soluble in water. The anhydrous form is slowly soluble in water. Both forms are insoluble in ethanol
B. | Solubility
Purity |
Loss on drying | Anhydrous form: not more than 10,0 % (220oC, 16h)
Dodecahydrate: not more than 47,2 % (50oC-55oC, 1h then 200oC, 16h)
Ammonium salts | No odour of ammonia detectable after heating
Selenium | Not more than 30 mg/kg
Fluoride | Not more than 30 mg/kg
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kgE 522 ALUMINIUM POTASSIUM SULPHATE
Synonyms | Potassium alum, potash alum
Definition |
Chemical name | Aluminium potassium sulphate dodecahydrate
Einecs | 233-141-3
Chemical formula | AlK(SO4)2· 12 H2O
Molecular weight | 474,38
Assay | Content not less than 99,5 %
Description | Large, transparent crystals or white crystalline powder
Identification |
A.Positive tests for aluminium, for potassium and for sulphate | A. | Positive tests for aluminium, for potassium and for sulphate |
A. | Positive tests for aluminium, for potassium and for sulphate
B.pH of a 10 % solution between 3,0 and 4,0 | B. | pH of a 10 % solution between 3,0 and 4,0 |
B. | pH of a 10 % solution between 3,0 and 4,0
C.Solubility | C. | Solubility | Freely soluble in water, insoluble in ethanol
C. | Solubility
Purity |
Ammonium salts | No odour of ammonia detectable after heating
Selenium | Not more than 30 mg/kg
Fluoride | Not more than 30 mg/kg
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kgE 523 ALUMINIUM AMMONIUM SULPHATE
Synonyms | Ammonium alum
Definition |
Chemical name | Aluminium ammonium sulphate
Einecs | 232-055-3
Chemical formula | AlNH4(SO4)2· 12 H2O
Molecular weight | 453,32
Assay | Content not less than 99,5 %
Description | Large, colourless crystals or white powder
Identification |
A.Positive tests for aluminium, for ammonium and for sulphate | A. | Positive tests for aluminium, for ammonium and for sulphate |
A. | Positive tests for aluminium, for ammonium and for sulphate
B.Solubility | B. | Solubility | Freely soluble in water, soluble in ethanol
B. | Solubility
Purity |
Alkali metals and alkaline earths | Not more than 0,5 %
Selenium | Not more than 30 mg/kg
Fluoride | Not more than 30 mg/kg
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kgE 524 SODIUM HYDROXIDE
Synonyms | Caustic soda, lye
Definition |
Chemical name | Sodium hydroxide
Einecs | 215-185-5
Chemical formula | NaOH
Molecular weight | 40,0
Assay | Content of solid forms not less than 98,0 % of total alkali (as NaOH). Content of solutions accordingly, based on the stated or labelled percentage of NaOH
Description | White or nearly white pellets, flakes, sticks, fused masses or other forms. Solutions are clear or slightly turbid, colourless or slightly coloured, strongly caustic and hygroscopic and when exposed to the air they absorb carbon dioxide, forming sodium carbonate
Identification |
A.Positive tests for sodium | A. | Positive tests for sodium |
A. | Positive tests for sodium
B.A 1 % solution is strongly alkaline | B. | A 1 % solution is strongly alkaline |
B. | A 1 % solution is strongly alkaline
C.Solubility | C. | Solubility | Very soluble in water. Freely soluble in ethanol
C. | Solubility
Purity |
Water insoluble and organic matter | A 5 % solution is completely clear and colourless to slightly coloured
Carbonate | Not more than 0,5 % (as Na2CO3)
Arsenic | Not more than 3 mg/kg
Lead | Not more than 0,5 mg/kg
Mercury | Not more than 1 mg/kgE 525 POTASSIUM HYDROXIDE
Synonyms | Caustic potash
Definition |
Chemical name | Potassium hydroxide
Einecs | 215-181-3
Chemical formula | KOH
Molecular weight | 56,11
Assay | Content not less than 85,0 % of alkali calculated as KOH
Description | White or nearly white pellets, flakes, sticks, fused masses or other forms
Identification |
A.Positive tests for potassium | A. | Positive tests for potassium |
A. | Positive tests for potassium
B.A 1 % solution is strongly alkaline | B. | A 1 % solution is strongly alkaline |
B. | A 1 % solution is strongly alkaline
C.Solubility | C. | Solubility | Very soluble in water. Freely soluble in ethanol
C. | Solubility
Purity |
Water insoluble matter | A 5 % solution is completely clear and colourless
Carbonate | Not more than 3,5 % (as K2CO3)
Arsenic | Not more than 3 mg/kg
Lead | Not more than 10 mg/kg
Mercury | Not more than 1 mg/kgE 526 CALCIUM HYDROXIDE
Synonyms | Slaked lime, hydrated lime
Definition |
Chemical name | Calcium hydroxide
Einecs | 215-137-3
Chemical formula | Ca(OH)2
Molecular weight | 74,09
Assay | Content not less than 92,0 %
Description | White powder
Identification |
A.Positive tests for alkali and for calcium | A. | Positive tests for alkali and for calcium |
A. | Positive tests for alkali and for calcium
B.Solubility | B. | Solubility | Slightly soluble in water. Insoluble in ethanol. Soluble in glycerol
B. | Solubility
Purity |
Acid insoluble ash | Not more than 1,0 %
Magnesium and alkali salts | Not more than 1,0 %
Barium | Not more than 300 mg/kg
Fluoride | Not more than 50 mg/kg
Arsenic | Not more than 3 mg/kg
Lead | Not more than 10 mg/kgE 527 AMMONIUM HYDROXIDE
Synonyms | Aqua ammonia, strong ammonia solution
Definition |
Chemical name | Ammonium hydroxide
Chemical formula | NH4OH
Molecular weight | 35,05
Assay | Content not less than 27 % of NH3
Description | Clear, colourless solution, having an exceedingly pungent, characteristic odour
Identification |
A.Positive tests for ammonia | A. | Positive tests for ammonia |
A. | Positive tests for ammonia
Purity |
Non-volatile matter | Not more than 0,02 %
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kgE 528 MAGNESIUM HYDROXIDE
Definition |
Chemical name | Magnesium hydroxide
Einecs | 215-170-3
Chemical formula | Mg(OH)2
Molecular weight | 58,32
Assay | Content not less than 95,0 % on the anhydrous basis
Description | Odourless, white bulky powder
Identification |
A.Positive test for magnesium and for alkali | A. | Positive test for magnesium and for alkali |
A. | Positive test for magnesium and for alkali
B.Solubility | B. | Solubility | Practically insoluble in water and in ethanol
B. | Solubility
Purity |
Loss on drying | Not more than 2,0 % (105oC, 2h)
Loss on ignition | Not more than 33 % (800oC to constant weight)
Calcium oxide | Not more than 1,5 %
Arsenic | Not more than 3 mg/kg
Lead | Not more than 10 mg/kgE 529 CALCIUM OXIDE
Synonyms | Burnt lime
Definition |
Chemical name | Calcium oxide
Einecs | 215-138-9
Chemical formula | CaO
Molecular weight | 56,08
Assay | Content not less than 95,0 % on the ignited basis
Description | Odourless, hard, white or greyish white masses of granules, or white to greyish powder
Identification |
A.Positive test for alkali and for calcium | A. | Positive test for alkali and for calcium |
A. | Positive test for alkali and for calcium
B.Heat is generated on moistening the sample with water | B. | Heat is generated on moistening the sample with water |
B. | Heat is generated on moistening the sample with water
C.Solubility | C. | Solubility | Slightly soluble in water. Insoluble in ethanol. Soluble in glycerol
C. | Solubility
Purity |
Loss on ignition | Not more than 10,0 % (ca 800oC to constant weight)
Acid insoluble matter | Not more than 1,0 %
Barium | Not more than 300 mg/kg
Magnesium and alkali salts | Not more than 1,5 %
Fluoride | Not more than 50 mg/kg
Arsenic | Not more than 3 mg/kg
Lead | Not more than 10 mg/kgE 530 MAGNESIUM OXIDE
Definition |
Chemical name | Magnesium oxide
Einecs | 215-171-9
Chemical formula | MgO
Molecular weight | 40,31
Assay | Content not less than 98,0 % on the ignited basis
Description | A very bulky, white powder known as light magnesium oxide or a relative dense, white powder known as heavy magnesium oxide. 5 g of light magnesium oxide occupy a volume of 40 to 50 ml, while 5 g of heavy magnesium oxide occupy a volume of 10 to 20 ml
Identification |
A.Positive test for alkali and for magnesium | A. | Positive test for alkali and for magnesium |
A. | Positive test for alkali and for magnesium
B.Solubility | B. | Solubility | Practically insoluble in water. Insoluble in ethanol
B. | Solubility
Purity |
Loss on ignition | Not more than 5,0 % (ca 800oC to constant weight)
Calcium oxide | Not more than 1,5 %
Arsenic | Not more than 3 mg/kg
Lead | Not more than 10 mg/kgE 535 SODIUM FERROCYANIDE
Synonyms | Yellow prussiate of soda, sodium hexacyanoferrate
Definition |
Chemical name | Sodium ferrocyanide
Einecs | 237-081-9
Chemical formula | Na4Fe(CN)6· 10 H2O
Molecular weight | 484,1
Assay | Content not less than 99,0 %
Description | Yellow crystals or crystalline powder
Identification |
A.Positive test for sodium and for ferrocyanide | A. | Positive test for sodium and for ferrocyanide |
A. | Positive test for sodium and for ferrocyanide
Purity |
Free moisture | Not more than 1,0 %
Water insoluble matter | Not more than 0,03 %
Chloride | Not more than 0,2 %
Sulphate | Not more than 0,1 %
Free cyanide | Not detectable
Ferricyanide | Not detectable
Lead | Not more than 5 mg/kgE 536 POTASSIUM FERROCYANIDE
Synonyms | Yellow prussiate of potash, potassium hexacyanoferrate
Definition |
Chemical name | Potassium ferrocyanide
Einecs | 237-722-2
Chemical formula | K4Fe(CN)6· 3 H2O
Molecular weight | 422,4
Assay | Content not less than 99,0 %
Description | Lemon yellow crystals
Identification |
A.Positive test for potassium and for ferrocyanide | A. | Positive test for potassium and for ferrocyanide |
A. | Positive test for potassium and for ferrocyanide
Purity |
Free moisture | Not more than 1,0 %
Water insoluble matter | Not more than 0,03 %
Chloride | Not more than 0,2 %
Sulphate | Not more than 0,1 %
Free cyanide | Not detectable
Ferricyanide | Not detectable
Lead | Not more than 5 mg/kgE 538 CALCIUM FERROCYANIDE
Synonyms | Yellow prussiate of lime, calcium hexacyanoferrate
Definition |
Chemical name | Calcium ferrocyanide
Einecs | 215-476-7
Chemical formula | Ca2Fe(CN)6· 12H2O
Molecular weight | 508,3
Assay | Content not less than 99,0 %
Description | Yellow crystals or crystalline powder
Identification |
A.Positive test for calcium and for ferrocyanide | A. | Positive test for calcium and for ferrocyanide |
A. | Positive test for calcium and for ferrocyanide
Purity |
Free moisture | Not more than 1,0 %
Water insoluble matter | Not more than 0,03 %
Chloride | Not more than 0,2 %
Sulphate | Not more than 0,1 %
Free cyanide | Not detectable
Ferricyanide | Not detectable
Lead | Not more than 5 mg/kgE 541 SODIUM ALUMINIUM PHOSPHATE, ACIDIC
Synonyms | SALP
Definition |
Chemical name | Sodium trialuminium tetradecahydrogen octaphosphate tetrahydrate (A) or
Trisodium dialuminium pentadecahydrogen octaphosphate (B)
Einecs | 232-090-4
Chemical formula | NaAl3H14(PO4)8· 4H2O (A)
Na3Al2H15(PO4)8(B)
Molecular weight | 949,88 (A)
897,82 (B)
Assay | Content not less than 95,0 % (both forms)
Description | White odourless powder
Identification |
A.Positive test for sodium, for aluminium and for phosphate | A. | Positive test for sodium, for aluminium and for phosphate |
A. | Positive test for sodium, for aluminium and for phosphate
B.pH | B. | pH | Acid to litmus
B. | pH
C.Solubility | C. | Solubility | Insoluble in water. Soluble in hydrochloric acid
C. | Solubility
Purity |
Loss on ignition | 19,5 %-21,0 % (A) } (750oC-800oC, 2h)
15 %-16 % (B) } (750oC-800oC, 2h)
Fluoride | Not more than 25 mg/kg
Arsenic | Not more than 3 mg/kg
Lead | Not more than 4 mg/kg
Cadmium | Not more than 1 mg/kg
Mercury | Not more than 1 mg/kgE 551 SILICON DIOXIDE
Synonyms | Silica, silicium dioxide
Definition | Silicon dioxide is an amorphous substance, which is produced synthetically by either a vapour-phase hydrolysis process, yielding fumed silica, or by a wet process, yielding precipitated silica, silica gel, or hydrous silica. Fumed silica is produced in essentially an anhydrous state, whereas the wet-process products are obtained as hydrates or contain surface absorbed water
Chemical name | Silicon dioxide
Einecs | 231-545-4
Chemical formula | (SiO2)n
Molecular weight | 60,08 (SiO2)
Assay | Content after ignition not less than 99,0 % (fumed silica) or 94,0 % (hydrated forms)
Description | White, fluffy powder or granules
Hygroscopic
Identification |
A.Positive test for silica | A. | Positive test for silica |
A. | Positive test for silica
Purity |
Loss on drying | Not more than 2,5 % (fumed silica, 105oC, 2h)
Not more than 8,0 % (precipitated silica and silica gel, 105oC, 2h)
Not more than 70 % (hydrous silica, 105oC, 2h)
Loss on ignition | Not more than 2,5 % after drying (1 000oC, fumed silica)
Not more than 8,5 % after drying (1 000oC, hydrated forms)
Soluble ionisable salts | Not more than 5,0 % (as Na2SO4)
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kgE 552 CALCIUM SILICATE
Definition | Calcium silicate is a hydrous or anhydrous silicate with varying proportions of CaO and SiO2
Chemical name | Calcium silicate
Einecs | 215-710-8
Assay | Content on the anhydrous basis:—as SiO2not less than 50 % and not more than 95 %—as CaO not less than 3 % and not more than 35 % | — | as SiO2not less than 50 % and not more than 95 % | — | as CaO not less than 3 % and not more than 35 %
— | as SiO2not less than 50 % and not more than 95 %
— | as CaO not less than 3 % and not more than 35 %
Description | White to off-white free-flowing powder that remains so after absorbing relatively large amounts of water or other liquids
Identification |
A.Positive test for silicate and for calcium | A. | Positive test for silicate and for calcium |
A. | Positive test for silicate and for calcium
B.Forms a gel with mineral acids | B. | Forms a gel with mineral acids |
B. | Forms a gel with mineral acids
Purity |
Loss on drying | Not more than 10 % (105oC, 2h)
Loss on ignition | Not less than 5 % and not more than 14 % (1 000oC, constant weight)
Sodium | Not more than 3 %
Fluoride | Not more than 50 mg/kg
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kgE 553a(i) MAGNESIUM SILICATE
Definition | Magnesium silicate is a synthetic compound of which the molar ratio of magnesium oxide to silicon dioxide is approximately 2:5
Assay | Content not less than 15 % of MgO and not less than 67 % of SiO2on the ignited basis
Description | Very fine, white, odourless powder, free from grittiness
Identification |
A.Positive test for magnesium and for silicate | A. | Positive test for magnesium and for silicate |
A. | Positive test for magnesium and for silicate
B.pH of a 10 % slurry | B. | pH of a 10 % slurry | Between 7,0 and 10,8
B. | pH of a 10 % slurry
Purity |
Loss on drying | Not more than 15 % (105oC, 2h)
Loss on ignition | Not more than 15 % after drying (1 000oC, 20 min)
Water soluble salts | Not more than 3 %
Free alkali | Not more than 1 % (as NaOH)
Fluoride | Not more than 10 mg/kg
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kgE 553a(ii) MAGNESIUM TRISILICATE
Definition |
Chemical name | Magnesium trisilicate
Chemical formula | Mg2Si3O8· xH2O (approximate composition)
Einecs | 239-076-7
Assay | Content not less than 29,0 % of MgO and not less than 65,0 % of SiO2both on the ignited basis
Description | Fine, white powder, free from grittiness
Identification |
A.Positive test for magnesium and for silicate | A. | Positive test for magnesium and for silicate |
A. | Positive test for magnesium and for silicate
B.pH of a 5 % slurry | B. | pH of a 5 % slurry | Between 6,3 and 9,5
B. | pH of a 5 % slurry
Purity |
Loss on ignition | Not less than 17 % and not more than 34 % (1 000oC)
Water soluble salts | Not more than 2 %
Free alkali | Not more than 1 % (as NaOH)
Fluoride | Not more than 10 mg/kg
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kgE 553b TALC
Synonyms | Talcum
Definition | Naturally occurring form of hydrous magnesium silicate containing varying proportions of such associated minerals as alpha-quartz, calcite, chlorite, dolomite, magnesite, and phlogopite
Chemical name | Magnesium hydrogen metasilicate
Einecs | 238-877-9
Chemical formula | Mg3(Si4O10)(OH)2
Molecular weight | 379,22
Description | Light, homogeneous, white or almost white powder, greasy to the touch
Identification |
A.IR absorption | A. | IR absorption | Characteristic peaks at 3 677 , 1 018 and 669 cm-1
A. | IR absorption
B.X-ray diffraction | B. | X-ray diffraction | Peaks at 9,34 /4,66/3,12 Å
B. | X-ray diffraction
C.Solubility | C. | Solubility | Insoluble in water and ethanol
C. | Solubility
Purity |
Loss on drying | Not more than 0,5 % (105oC, 1h)
Acid-soluble matter | Not more than 6 %
Water-soluble matter | Not more than 0,2 %
Acid-soluble iron | Not detectable
Arsenic | Not more than 10 mg/kg
Lead | Not more than 5 mg/kgE 554 SODIUM ALUMINIUM SILICATE
Synonyms | Sodium silicoaluminate, sodium aluminosilicate, aluminium sodium silicate
Definition |
Chemical name | Sodium aluminium silicate
Assay | Content on the anhydrous basis:—as SiO2not less than 66,0 % and not more than 88,0 %—as Al2O3not less than 5,0 % and not more than 15,0 % | — | as SiO2not less than 66,0 % and not more than 88,0 % | — | as Al2O3not less than 5,0 % and not more than 15,0 %
— | as SiO2not less than 66,0 % and not more than 88,0 %
— | as Al2O3not less than 5,0 % and not more than 15,0 %
Description | Fine white amorphous powder or beads
Identification |
A.Positive tests for sodium, for aluminium and for silicate | A. | Positive tests for sodium, for aluminium and for silicate |
A. | Positive tests for sodium, for aluminium and for silicate
B.pH of a 5 % slurry | B. | pH of a 5 % slurry | Between 6,5 and 11,5
B. | pH of a 5 % slurry
Purity |
Loss on drying | Not more than 8,0 % (105oC, 2h)
Loss on ignition | Not less than 5,0 % and not more than 11,0 % on the anhydrous basis (1 000oC, constant weight)
Sodium | Not less than 5 % and not more than 8,5 % (as Na2O) on the anhydrous basis
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kgE 555 POTASSIUM ALUMINIUM SILICATE
Synonyms | Mica
Definition | Natural mica consists of mainly potassium aluminium silicate (muscovite)
Einecs | 310-127-6
Chemical name | Potassium aluminium silicate
Chemical formulae | KAl2[AlSi3O10](OH)2
Molecular weight | 398
Assay | Content not less than 98 %
Description | Light grey to white crystalline platelets or powder
Identification |
A.Solubility | A. | Solubility | Insoluble in water, diluted acids and alkali and organic solvents
A. | Solubility
Purity |
Loss on drying | Not more than 0,5 % (105oC, 2h)
Antimony | Not more than 20 mg/kg
Zinc | Not more than 25 mg/kg
Barium | Not more than 25 mg/kg
Chromium | Not more than 100 mg/kg
Copper | Not more than 25 mg/kg
Nickel | Not more than 50 mg/kg
Arsenic | Not more than 3 mg/kg
Mercury | Not more than 1 mg/kg
Cadmium | Not more than 2 mg/kg
Lead | Not more than 10 mg/kgE 556 CALCIUM ALUMINIUM SILICATE
Synonyms | Calcium aluminosilicate, calcium silicoaluminate, aluminium calcium silicate
Definition |
Chemical name | Calcium aluminium silicate
Assay | Content on the anhydrous basis:—as SiO2not less than 44,0 % and not more than 50,0 %—as Al2O3not less than 3,0 % and not more than 5,0 %—as CaO not less than 32,0 % and not more than 38,0 % | — | as SiO2not less than 44,0 % and not more than 50,0 % | — | as Al2O3not less than 3,0 % and not more than 5,0 % | — | as CaO not less than 32,0 % and not more than 38,0 %
— | as SiO2not less than 44,0 % and not more than 50,0 %
— | as Al2O3not less than 3,0 % and not more than 5,0 %
— | as CaO not less than 32,0 % and not more than 38,0 %
Description | Fine white, free-flowing powder
Identification |
A.Positive tests for calcium, for aluminium and for silicate | A. | Positive tests for calcium, for aluminium and for silicate |
A. | Positive tests for calcium, for aluminium and for silicate
Purity |
Loss on drying | Not more than 10,0 % (105oC, 2h)
Loss on ignition | Not less than 14,0 % and not more than 18,0 on the anhydrous basis (1 000oC, constant weight)
Fluoride | Not more than 50 mg/kg
Arsenic | Not more than 3 mg/kg
Lead | Not more than 10 mg/kg
Mercury | Not more than 1 mg/kgE 558 BENTONITE
Definition | Bentonite is a natural clay containing a high proportion of montmorillonite, a native hydrated aluminium silicate in which some aluminium and silicon atoms were naturally replaced by other atoms such as magnesium and iron. Calcium and sodium ions are trapped between the mineral layers. There are four common types of bentonite: natural sodium bentonite, natural calcium bentonite, sodium-activated bentonite and acid-activated bentonite
Einecs | 215-108-5
Chemical formula | (Al, Mg)8(Si4O10)4(OH)8· 12H2O
Molecular weight | 819
Assay | Montmorillonite content not less than 80 %
Description | Very fine, yellowish or greyish white powder or granules. The structure of bentonite allows it to absorb water in its structure and on its external surface (swelling properties)
Identification |
A.Methylene blue test | A. | Methylene blue test |
A. | Methylene blue test
B.X-Ray diffraction | B. | X-Ray diffraction | Characteristic peaks at 12,5 /15 A
B. | X-Ray diffraction
C.IR absorption | C. | IR absorption | Peaks at 428/470/530/1 110 -1 020 /3 750 — 3 400 cm-1
C. | IR absorption
Purity |
Loss on drying | Not more than 15,0 % (105oC, 2h)
Arsenic | Not more than 2 mg/kg
Lead | Not more than 20 mg/kgE 559 ALUMINIUM SILICATE (KAOLIN)
Synonyms | Kaolin, light or heavy
Definition | Aluminium silicate hydrous (kaolin) is a purified white plastic clay composed of kaolinite, potassium aluminium silicate, feldspar and quartz. Processing should not include calcination. The raw kaolinitic clay used in the production of aluminium silicate shall have a level of dioxin which does not make it injurious to health or unfit for human consumption
Einecs | 215-286-4 (kaolinite)
Chemical formula | Al2Si2O5(OH)4(kaolinite)
Molecular weight | 264
Assay | Content not less than 90 % (sum of silica and alumina, after ignition)
Silica (SiO2) | Between 45 % and 55 %
Alumina (Al2O3) | Between 30 % and 39 %
Description | Fine, white or greyish white, unctuous powder. Kaolin is made up of loose aggregations of randomly oriented stacks of kaolinite flakes or of individual hexagonal flakes
Identification |
A.Positive tests for alumina and for silicate | A. | Positive tests for alumina and for silicate |
A. | Positive tests for alumina and for silicate
B.X-ray diffraction: | B. | X-ray diffraction: | Characteristic peaks at 7,18 /3,58/2,38/1,78 Å
B. | X-ray diffraction:
C.IR absorption: | C. | IR absorption: | Peaks at 3 700 and 3 620 cm-1
C. | IR absorption:
Purity |
Loss on ignition | Between 10 and 14 % (1 000oC, constant weight)
Water soluble matter | Not more than 0,3 %
Acid soluble matter | Not more than 2 %
Iron | Not more than 5 %
Potassium oxide (K2O) | Not more than 5 %
Carbon | Not more than 0,5 %
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kgE 570 FATTY ACIDS
Definition | Linear fatty acids, caprylic acid (C8), capric acid (C10), laurinc acid (C12), myristic acid (C14), palmitic acid (C16), stearic acid (C18), oleic acid (C18:1)
Chemical name | octanoic acid (C8), decanoic acid (C10), dodecanoic acid (C12), tetradecanoic acid (C14), hexadecanoic acid (C16), octadecanoic acid (C18), 9-octadecenoic acid (C18:1)
Assay | Not less than 98 % by chromatography
Description | A colourless liquid or white solid obtained from oils and fats
Identification |
A.Individual fatty acids can be identified by acid value, iodine value, gas chromatog-raphy and molecular weight | A. | Individual fatty acids can be identified by acid value, iodine value, gas chromatog-raphy and molecular weight |
A. | Individual fatty acids can be identified by acid value, iodine value, gas chromatog-raphy and molecular weight
Purity |
Residue on ignition | Not more than 0,1 %
Unsaponifiable matter | Not more than 1,5 %
Water | Not more than 0,2 % (Karl Fischer method)
Arsenic | Not more than 3 mg/kg
Lead | Not more than 1 mg/kg
Mercury | Not more than 1 mg/kgE 574 GLUCONIC ACID
Synonyms | D-gluconic acid, dextronic acid
Definition | Gluconic acid is an aqueous solution of gluconic acid and glucono-delta-lactone
Chemical name | Gluconic acid
Chemical formula | C6H12O7(gluconic acid)
Molecular weight | 196,2
Assay | Content not less than 50,0 % (as gluconic acid)
Description | Colourless to light yellow, clear syrupy liquid
Identification |
A.Formation of phenylhydrazine derivative positive | A. | Formation of phenylhydrazine derivative positive | Compound formed melts between 196oC and 202oC with decomposition
A. | Formation of phenylhydrazine derivative positive
Purity |
Residue on ignition | Not more than 1,0 %
Reducing matter | Not more than 0,75 % (as D-glucose)
Chloride | Not more than 350 mg/kg
Sulphate | Not more than 240 mg/kg
Sulphite | Not more than 20 mg/kg
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kgE 575 GLUCONO-DELTA-LACTONE
Synonyms | Gluconolactone, GDL, D-gluconic acid delta-lactone, delta-gluconolactone
Definition | Glucono-delta-lactone is the cyclic 1,5-intramolecular ester of D-gluconic acid. In aqueous media it is hydrolysed to an equilibrium mixture of D-gluconic acid (55 %-66 %) and the delta- and gamma-lactones
Chemical name | D-Glucono-1,5 -lactone
Einecs | 202-016-5
Chemical formula | C6H10O6
Molecular weight | 178,14
Assay | Content not less than 99,0 % on the anhydrous basis
Description | Fine, white, nearly odourless, crystalline powder
Identification |
A.Formation of phenylhydrazine derivative of gluconic acid positive | A. | Formation of phenylhydrazine derivative of gluconic acid positive | Compound formed melts between 196oC and 202oC with decomposition
A. | Formation of phenylhydrazine derivative of gluconic acid positive
B.Solubility | B. | Solubility | Freely soluble in water. Sparingly soluble in ethanol
B. | Solubility
C.Melting point | C. | Melting point | 152oC ± 2oC
C. | Melting point
Purity |
Water | Not more than 1,0 % (Karl Fischer method)
Reducing substances | Not more than 0,75 % (as D-glucose)
Lead | Not more than 2 mg/kgE 576 SODIUM GLUCONATE
Synonyms | Sodium salt of D-gluconic acid
Definition |
Chemical name | Sodium D-gluconate
Einecs | 208-407-7
Chemical formula | C6H11NaO7(anhydrous)
Molecular weight | 218,14
Assay | Content not less than 98,0 %
Description | White to tan, granular to fine, crystalline powder
Identification |
A.Positive test for sodium and for gluconate | A. | Positive test for sodium and for gluconate |
A. | Positive test for sodium and for gluconate
B.Solubility | B. | Solubility | Very soluble in water. Sparingly soluble in ethanol
B. | Solubility
C.pH of a 10 % solution | C. | pH of a 10 % solution | Between 6,5 and 7,5
C. | pH of a 10 % solution
Purity |
Reducing matter | Not more than 1,0 % (as D-glucose)
Lead | Not more than 2 mg/kgE 577 POTASSIUM GLUCONATE
Synonyms | Potassium salt of D-gluconic acid
Definition |
Chemical name | Potassium D-gluconate
Einecs | 206-074-2
Chemical formula | C6H11KO7(anhydrous)
C6H11KO7· H2O (monohydrate)
Molecular weight | 234,25 (anhydrous)
252,26 (monohydrate)
Assay | Content not less than 97,0 % and not more than 103,0 % on dried basis
Description | Odourless, free flowing white to yellowish white, crystalline powder or granules
Identification |
A.Positive test for potassium and for gluconate | A. | Positive test for potassium and for gluconate |
A. | Positive test for potassium and for gluconate
B.pH of a 10 % solution | B. | pH of a 10 % solution | Between 7,0 and 8,3
B. | pH of a 10 % solution
Purity |
Loss on drying | Anhydrous: not more than 3,0 % (105oC, 4h, vacuum)Monohydrate: not less than 6 % and not more than 7,5 % (105oC, 4h, vacuum)
Reducing substances | Not more than 1,0 % (as D-glucose)
Lead | Not more than 2 mg/kgE 578 CALCIUM GLUCONATE
Synonyms | Calcium salt of D-gluconic acid
Definition |
Chemical name | Calcium di-D-gluconate
Einecs | 206-075-8
Chemical formula | C12H22CaO14(anhydrous)
C12H22CaO14· H2O (monohydrate)
Molecular weight | 430,38 (anhydrous form)
448,39 (monohydrate)
Assay | Content not less than 98,0 % and not more than 102 % on the anhydrous and monohydrate basis
Description | Odourless, white crystalline granules or powder, stable in air
Identification |
A.Positive test for calcium and for gluconate | A. | Positive test for calcium and for gluconate |
A. | Positive test for calcium and for gluconate
B.Solubility | B. | Solubility | Soluble in water, insoluble in ethanol
B. | Solubility
C.pH of a 5 % solution | C. | pH of a 5 % solution | Between 6,0 and 8,0
C. | pH of a 5 % solution
Purity |
Loss on drying | Not more than 3,0 % (105oC, 16h) (anhydrous)
Not more than 2,0 % (105oC, 16h) (monohydrate)
Reducing substances | Not more than 1,0 % (as D-glucose)
Lead | Not more than 2 mg/kgE 579 FERROUS GLUCONATE
Definition |
Chemical name | Ferrous di-D-gluconate dihydrate
Iron(II) di-gluconate dihydrate
Einecs | 206-076-3
Chemical formulae | C12H22FeO14·2H2O
Molecular weight | 482,17
Assay | Content not less than 95 % on the dried basis
Description | Pale greenish-yellow to yellowish-grey powder or granules, which may have a faint odour of burnt sugar
Identification |
A.Solubility | A. | Solubility | Soluble with slight heating in water. Practically insoluble in ethanol
A. | Solubility
B.Positive test for ferrous ion | B. | Positive test for ferrous ion |
B. | Positive test for ferrous ion
C.Formation of phenylhy-drazine derivative of gluconic acid positive | C. | Formation of phenylhy-drazine derivative of gluconic acid positive |
C. | Formation of phenylhy-drazine derivative of gluconic acid positive
D.pH of a 10 % solution | D. | pH of a 10 % solution | Between 4 and 5,5
D. | pH of a 10 % solution
Purity |
Loss on drying | Not more than 10 % (105oC, 16 hours)
Oxalic acid | Not detectable
Iron (Fe III) | Not more than 2 %
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kg
Cadmium | Not more than 1 mg/kg
Reducing substances | Not more than 0,5 % expressed as glucoseE 585 FERROUS LACTATE
Synonyms | Iron(II) lactate
Iron(II) 2-hydroxy propanoate
Propanoic acid, 2-hydroxy-iron(2 +) salt (2:1)
Definition |
Chemical name | Ferrous 2-hydroxy propanoate
Einecs | 227-608-0
Chemical formulae | C6H10FeO6·xH2O (x = 2 or 3)
Molecular weight | 270,02 (dihydrate)
288,03 (trihydrate)
Assay | Content not less than 96 % on the dried basis
Description | Greenish-white crystals or light green powder having a characteristic smell
Identification |
A.Solubility | A. | Solubility | Soluble in water. Practically insoluble in ethanol
A. | Solubility
B.Positive test for ferrous ion and for lactate | B. | Positive test for ferrous ion and for lactate |
B. | Positive test for ferrous ion and for lactate
C.pH of a 2 % solution | C. | pH of a 2 % solution | Between 4 and 6
C. | pH of a 2 % solution
Purity |
Loss on drying | Not more than 18 % (100oC, under vacuum, approximately 700 mm Hg)
Iron (Fe III) | Not more than 0,6 %
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kg
Cadmium | Not more than 1 mg/kgE 586 4-HEXYLRESORCINOL
Synonyms | 4-Hexyl-1,3-benzenediol
Hexylresorcinol
Definition |
Chemical name | 4-Hexylresorcinol
Einecs | 205-257-4
Chemical formula | C12H18O2
Molecular weight | 197,24
Assay | Not less than 98 % on the dried basis
Description | White powder
Identification |
A.Solubility | A. | Solubility | Freely soluble in ether and acetone; very slightly soluble in water
A. | Solubility
B.Nitric acid test | B. | Nitric acid test | To 1 ml of a saturated solution of the sample, add 1 ml of nitric acid. A light red colour appears
B. | Nitric acid test
C.Bromine test | C. | Bromine test | To 1 ml of saturated solution of the sample, add 1 ml of bromine TS. A yellow, flocculent precipitate dissolves producing a yellow solution
C. | Bromine test
D.Melting range | D. | Melting range | 62 to 67oC
D. | Melting range
Purity |
Acidity | Not more than 0,05 %
Sulphated ash | Not more than 0,1 %
Resorcinol and other phenols | Shake about 1 g of the sample with 50 ml of water for a few minutes, filter, and to the filtrate add 3 drops of ferric chloride TS. No red or blue colour is produced
Nickel | Not more than 2 mg/kg
Lead | Not more than 2 mg/kg
Mercury | Not more than 3 mg/kgE 620 GLUTAMIC ACID
Synonyms | L-Glutamic acid, L-α-aminoglutaric acid
Definition |
Chemical name | L-Glutamic acid, L-2-amino-pentanedioic acid
Einecs | 200-293-7
Chemical formula | C5H9NO4
Molecular weight | 147,13
Assay | Content not less than 99,0 % and not more than 101,0 % on the anhydrous basis
Description | White crystals or crystalline powder
Identification |
A.Positive test for glutamic acid by thin layer chromatography | A. | Positive test for glutamic acid by thin layer chromatography |
A. | Positive test for glutamic acid by thin layer chromatography
B.Specific rotation [α]D20 | B. | Specific rotation [α]D20 | Between +31,5oand +32,2o
B. | Specific rotation [α]D20
(10 % solution (anhydrous basis) in 2N HCl, 200 mm tube)
C.pH of a saturated solution | C. | pH of a saturated solution | Between 3,0 and 3,5
C. | pH of a saturated solution
Purity |
Loss on drying | Not more than 0,2 % (80oC, 3h)
Sulphated ash | Not more than 0,2 %
Chloride | Not more than 0,2 %
Pyrrolidone carboxylic acid | Not more than 0,2 %
Lead | Not more than 2 mg/kgE 621 MONOSODIUM GLUTAMATE
Synonyms | Sodium glutamate, MSG
Definition |
Chemical name | Monosodium L-glutamate monohydrate
Einecs | 205-538-1
Chemical formula | C5H8NaNO4· H2O
Molecular weight | 187,13
Assay | Content not less than 99,0 % and not more than 101,0 % on the anhydrous basis
Description | White, practically odourless crystals or crystalline powder
Identification |
A.Positive test for sodium | A. | Positive test for sodium |
A. | Positive test for sodium
B.Positive test for glutamic acid by thin-layer chromatography | B. | Positive test for glutamic acid by thin-layer chromatography |
B. | Positive test for glutamic acid by thin-layer chromatography
C.Specific rotation [α]D20 | C. | Specific rotation [α]D20 | Between +24,8oand +25,3o
C. | Specific rotation [α]D20
(10 % solution (anhydrous basis) in 2N HCl, 200 mm tube)
D.pH of a 5 % solution | D. | pH of a 5 % solution | Between 6,7 and 7,2
D. | pH of a 5 % solution
Purity |
Loss on drying | Not more than 0,5 % (98oC, 5h)
Chloride | Not more than 0,2 %
Pyrrolidone carboxylic acid | Not more than 0,2 %
Lead | Not more than 2 mg/kgE 622 MONOPOTASSIUM GLUTAMATE
Synonyms | Potassium glutamate, MPG
Definition |
Chemical name | Monopotassium L-glutamate monohydrate
Einecs | 243-094-0
Chemical formula | C5H8KNO4· H2O
Molecular weight | 203,24
Assay | Content not less than 99,0 % and not more than 101,0 % on the anhydrous basis
Description | White, practically odourless crystals or crystalline powder
Identification |
A.Positive test for potassium | A. | Positive test for potassium |
A. | Positive test for potassium
B.Positive test for glutamic acid by thin-layer chromatog-raphy | B. | Positive test for glutamic acid by thin-layer chromatog-raphy |
B. | Positive test for glutamic acid by thin-layer chromatog-raphy
C.Specific rotation [α]D20 | C. | Specific rotation [α]D20 | Between +22,5oand +24,0o
C. | Specific rotation [α]D20
(10 % solution (anhydrous basis) in 2N HCl, 200 mm tube)
D.pH of a 2 % solution | D. | pH of a 2 % solution | Between 6,7 and 7,3
D. | pH of a 2 % solution
Purity |
Loss on drying | Not more than 0,2 % (80oC, 5h)
Chloride | Not more than 0,2 %
Pyrrolidone carboxylic acid | Not more than 0,2 %
Lead | Not more than 2 mg/kgE 623 CALCIUM DIGLUTAMATE
Synonyms | Calcium glutamate
Definition |
Chemical name | Monocalcium di-L-glutamate
Einecs | 242-905-5
Chemical formula | C10H16CaN2O8· x H2O (x = 0, 1, 2 or 4)
Molecular weight | 332,32 (anhydrous)
Assay | Content not less than 98,0 % and not more than 102,0 % on the anhydrous basis
Description | White, practically odourless crystals or crystalline powder
Identification |
A.Positive test for calcium | A. | Positive test for calcium |
A. | Positive test for calcium
B.Positive test for glutamic acid by thin-layer chromatog-raphy | B. | Positive test for glutamic acid by thin-layer chromatog-raphy |
B. | Positive test for glutamic acid by thin-layer chromatog-raphy
C.Specific rotation [α]D20 | C. | Specific rotation [α]D20 | Between +27,4 and +29,2 (for calcium diglutamate with x = 4) (10 % solution (anhydrous basis) in 2N HCl, 200 mm tube)
C. | Specific rotation [α]D20
Purity |
Water | Not more than 19,0 % (for calcium diglutamate with x = 4) (Karl Fischer)
Chloride | Not more than 0,2 %
Pyrrolidone carboxylic acid | Not more than 0,2 %
Lead | Not more than 2 mg/kgE 624 MONOAMMONIUM GLUTAMATE
Synonyms | Ammonium glutamate
Definition |
Chemical name | Monoammonium L-glutamate monohydrate
Einecs | 231-447-1
Chemical formula | C5H12N2O4· H2O
Molecular weight | 182,18
Assay | Content not less than 99,0 % and not more 101,0 % on the anhydrous basis
Description | White, practically odourless crystals or crystalline powder
Identification |
A.Positive test for ammonium | A. | Positive test for ammonium |
A. | Positive test for ammonium
B.Positive test for glutamic acid by thin-layer chromatog-raphy | B. | Positive test for glutamic acid by thin-layer chromatog-raphy |
B. | Positive test for glutamic acid by thin-layer chromatog-raphy
C.Specific rotation [α]D20 | C. | Specific rotation [α]D20 | Between +25,4oand +26,4o
C. | Specific rotation [α]D20
(10 % solution (anhydrous basis) in 2N HCl, 200 mm tube)
D.pH of a 5 % solution | D. | pH of a 5 % solution | Between 6,0 and 7,0
D. | pH of a 5 % solution
Purity |
Loss on drying | Not more than 0,5 % (50oC, 4h)
Sulphated ash | Not more than 0,1 %
Pyrrolidone carboxylic acid | Not more than 0,2 %
Lead | Not more than 2 mg/kgE 625 MAGNESIUM DIGLUTAMATE
Synonyms | Magnesium glutamate
Definition |
Chemical name | Monomagnesium di-L-glutamate tetrahydrate
Einecs | 242-413-0
Chemical formula | C10H16MgN2O8· 4H2O
Molecular weight | 388,62
Assay | Content not less than 95,0 % and not more than 105,0 % on the anhydrous basis
Description | Odourless, white or off-white crystals or powder
Identification |
A.Positive test for magnesium | A. | Positive test for magnesium |
A. | Positive test for magnesium
B.Positive test for glutamic acid by thin-layer chromatog-raphy | B. | Positive test for glutamic acid by thin-layer chromatog-raphy |
B. | Positive test for glutamic acid by thin-layer chromatog-raphy
C.Specific rotation [α]D20 | C. | Specific rotation [α]D20 | Between +23,8oand +24,4o
C. | Specific rotation [α]D20
(10 % solution (anhydrous basis) in 2N HCl, 200 mm tube)
D.pH of a 10 % solution | D. | pH of a 10 % solution | Between 6,4 and 7,5
D. | pH of a 10 % solution
Purity |
Water | Not more than 24 % (Karl Fischer)
Chloride | Not more than 0,2 %
Pyrrolidone carboxylic acid | Not more than 0,2 %
Lead | Not more than 2 mg/kgE 626 GUANYLIC ACID
Synonyms | Guanylic acid
Definition |
Chemical name | Guanosine-5′-monophosphoric acid
Einecs | 201-598-8
Chemical formula | C10H14N5O8P
Molecular weight | 363,22
Assay | Content not less than 97,0 % on the anhydrous basis
Description | Odourless, colourless or white crystals or white crystalline powder
Identification |
A.Positive test for ribose and for organic phosphate | A. | Positive test for ribose and for organic phosphate |
A. | Positive test for ribose and for organic phosphate
B.pH of a 0,25 % solution | B. | pH of a 0,25 % solution | Between 1,5 and 2,5
B. | pH of a 0,25 % solution
C.Spectrometry: | C. | Spectrometry: | maximum absorption of a 20 mg/l solution in 0,01 N HCl at 256 nm
C. | Spectrometry:
Purity |
Loss on drying | Not more than 1,5 % (120oC, 4h)
Other nucleotides | Not detectable by thin-layer chromatography
Lead | Not more than 2 mg/kgE 627 DISODIUM GUANYLATE
Synonyms | Sodium guanylate, sodium 5′-guanylate
Definition |
Chemical name | Disodium guanosine-5′-monophosphate
Einecs | 221-849-5
Chemical formula | C10H12N5Na2O8P· x H2O (x = ca. 7)
Molecular weight | 407,19 (anhydrous)
Assay | Content not less than 97,0 % on the anhydrous basis
Description | Odourless, colourless or white crystals or white crystalline powder
Identification |
A.Positive test for ribose, for organic phosphate, and for sodium | A. | Positive test for ribose, for organic phosphate, and for sodium |
A. | Positive test for ribose, for organic phosphate, and for sodium
B.pH of a 5 % solution | B. | pH of a 5 % solution | Between 7,0 and 8,5
B. | pH of a 5 % solution
C.Spectrometry: | C. | Spectrometry: | maximum absorption of a 20 mg/l solution in 0,01 N HCl at 256 nm
C. | Spectrometry:
Purity |
Loss on drying | Not more than 25 % (120oC, 4h)
Other nucleotides | Not detectable by thin-layer chromatography
Lead | Not more than 2 mg/kgE 628 DIPOTASSIUM GUANYLATE
Synonyms | Potassium guanylate, potassium 5′-guanylate
Definition |
Chemical name | Dipotassium guanosine-5′-monophosphate
Einecs | 226-914-1
Chemical formula | C10H12K2N5O8P
Molecular weight | 439,40
Assay | Content not less than 97,0 % on the anhydrous basis
Description | Odourless, colourless or white crystals or white crystalline powder
Identification |
A.Positive test for ribose, for organic phosphate, and for potassium | A. | Positive test for ribose, for organic phosphate, and for potassium |
A. | Positive test for ribose, for organic phosphate, and for potassium
B.pH of a 5 % solution | B. | pH of a 5 % solution | Between 7,0 and 8,5
B. | pH of a 5 % solution
C.Spectrometry: | C. | Spectrometry: | maximum absorption of a 20 mg/l solution in 0,01 N HCl at 256 nm
C. | Spectrometry:
Purity |
Loss on drying | Not more than 5 % (120oC, 4h)
Other nucleotides | Not detectable by thin-layer chromatography
Lead | Not more than 2 mg/kgE 629 CALCIUM GUANYLATE
Synonyms | Calcium 5′-guanylate
Definition |
Chemical name | Calcium guanosine-5′-monophosphate
Chemical formula | C10H12CaN5O8P· nH2O
Molecular weight | 401,20 (anhydrous)
Assay | Content not less than 97,0 % on the anhydrous basis
Description | Odourless, white or off-white crystals or powder
Identification |
A.Positive test for ribose, for organic phosphate, and for calcium | A. | Positive test for ribose, for organic phosphate, and for calcium |
A. | Positive test for ribose, for organic phosphate, and for calcium
B.pH of a 0,05 % solution | B. | pH of a 0,05 % solution | Between 7,0 and 8,0
B. | pH of a 0,05 % solution
C.Spectrometry: | C. | Spectrometry: | maximum absorption of a 20 mg/l solution in 0,01 N HCl at 256 nm
C. | Spectrometry:
Purity |
Loss on drying | Not more than 23,0 % (120oC, 4h)
Other nucleotides | Not detectable by thin-layer chromatography
Lead | Not more than 2 mg/kgE 630 INOSINIC ACID
Synonyms | 5′-Inosinic acid
Definition |
Chemical name | Inosine-5′-monophosphoric acid
Einecs | 205-045-1
Chemical formula | C10H13N4O8P
Molecular weight | 348,21
Assay | Content not less than 97,0 % on the anhydrous basis
Description | Odourless, colourless or white crystals or powder
Identification |
A.Positive test for ribose, and for organic phosphate | A. | Positive test for ribose, and for organic phosphate |
A. | Positive test for ribose, and for organic phosphate
B.pH of a 5 % solution | B. | pH of a 5 % solution | Between 1,0 and 2,0
B. | pH of a 5 % solution
C.Spectrometry: | C. | Spectrometry: | maximum absorption of a 20 mg/l solution in 0,01 N HCl at 250 nm
C. | Spectrometry:
Purity |
Loss on drying | Not more than 3,0 % (120oC, 4h)
Other nucleotides | Not detectable by thin-layer chromatography
Lead | Not more than 2 mg/kgE 631 DISODIUM INOSINATE
Synonyms | Sodium inosinate, sodium 5′-inosinate
Definition |
Chemical name | Disodium inosine-5′-monophosphate
Einecs | 225-146-4
Chemical formula | C10H11N4Na2O8P· H2O
Molecular weight | 392,17 (anhydrous)
Assay | Content not less than 97,0 % on the anhydrous basis
Description | Odourless, colourless or white crystals or powder
Identification |
A.Positive test for ribose, and for organic phosphate and for sodium | A. | Positive test for ribose, and for organic phosphate and for sodium |
A. | Positive test for ribose, and for organic phosphate and for sodium
B.pH of a 5 % solution | B. | pH of a 5 % solution | Between 7,0 and 8,5
B. | pH of a 5 % solution
C.Spectrometry: | C. | Spectrometry: | maximum absorption of a 20 mg/l solution in 0,01 N HCl at 250 nm
C. | Spectrometry:
Purity |
Water | Not more than 28,5 % (Karl Fischer)
Other nucleotides | Not detectable by thin-layer chromatography
Lead | Not more than 2 mg/kgE 632 DIPOTASSIUM INOSINATE
Synonyms | Potassium inosinate, potassium 5′-inosinate
Definition |
Chemical name | Dipotassium inosine-5′-monophosphate
Einecs | 243-652-3
Chemical formula | C10H11K2N4O8P
Molecular weight | 424,39
Assay | Content not less than 97,0 % on the anhydrous basis
Description | Odourless, colourless or white crystals or powder
Identification |
A.Positive test for ribose, and for organic phosphate and for potassium | A. | Positive test for ribose, and for organic phosphate and for potassium |
A. | Positive test for ribose, and for organic phosphate and for potassium
B.pH of a 5 % solution | B. | pH of a 5 % solution | Between 7,0 and 8,5
B. | pH of a 5 % solution
C.Spectrometry: | C. | Spectrometry: | maximum absorption of a 20 mg/l solution in 0,01 N HCl at 250 nm
C. | Spectrometry:
Purity |
Water | Not more than 10,0 % (Karl Fischer)
Other nucleotides | Not detectable by thin-layer chromatography
Lead | Not more than 2 mg/kgE 633 CALCIUM INOSINATE
Synonyms | Calcium 5′-inosinate
Definition |
Chemical name | Calcium inosine-5′-monophosphate
Chemical formula | C10H11CaN4O8P· nH2O
Molecular weight | 386,19 (anhydrous)
Assay | Content not less than 97,0 % on the anhydrous basis
Description | Odourless, colourless or white crystals or powder
Identification |
A.Positive test for ribose, and for organic phosphate and for calcium | A. | Positive test for ribose, and for organic phosphate and for calcium |
A. | Positive test for ribose, and for organic phosphate and for calcium
B.pH of a 0,05 % solution | B. | pH of a 0,05 % solution | Between 7,0 and 8,0
B. | pH of a 0,05 % solution
C.Spectrometry: | C. | Spectrometry: | maximum absorption of a 20 mg/l solution in 0,01 N HCl at 250 nm
C. | Spectrometry:
Purity |
Water | Not more than 23,0 % (Karl Fischer)
Other nucleotides | Not detectable by thin-layer chromatography
Lead | Not more than 2 mg/kgE 634 CALCIUM 5′-RIBONUCLEOTIDE
Definition |
Chemical name | Calcium 5′-ribonucleotide is essentially a mixture of calcium inosine-5′-monophosphate and calcium guanosine-5′-monophosphate
Chemical formula | C10H11N4CaO8P· nH2O y
C10H12N5CaO8P· nH2O
Assay | Content of both major components not less than 97,0 %, and of each component not less than 47,0 % and not more than 53 %, in every case on the anhydrous basis
Description | Odourless, white or nearly white crystals or powder
Identification |
A.Positive test for ribose, and for organic phosphate and for calcium | A. | Positive test for ribose, and for organic phosphate and for calcium |
A. | Positive test for ribose, and for organic phosphate and for calcium
B.pH of a 0,05 % solution | B. | pH of a 0,05 % solution | Between 7,0 and 8,0
B. | pH of a 0,05 % solution
Purity |
Water | Not more than 23,0 % (Karl Fischer)
Other nucleotides | Not detectable by thin-layer chromatography
Lead | Not more than 2 mg/kgE 635 DISODIUM 5′-RIBONUCLEOTIDE
Synonyms | Sodium 5′-ribonucleotide
Definition |
Chemical name | Disodium 5′-ribonucleotide is essentially a mixture of disodium inosine-5′-monophosphate and disodium guanosine-5′-monophosphate
Chemical formula | C10H11N4Na2O8P · nH2O and
C10H12N5Na2O8P· nH2O
Assay | Content of both major components not less than 97,0 %, and of each component not less than 47,0 % and not more than 53 %, in every case on the anhydrous basis
Description | Odourless, white or nearly white crystals or powder
Identification |
A.Positive test for ribose, and for organic phosphate and for sodium | A. | Positive test for ribose, and for organic phosphate and for sodium |
A. | Positive test for ribose, and for organic phosphate and for sodium
B.pH of a 5 % solution | B. | pH of a 5 % solution | Between 7,0 and 8,5
B. | pH of a 5 % solution
Purity |
Water | Not more than 26,0 % (Karl Fischer)
Other nucleotides | Not detectable by thin-layer chromatography
Lead | Not more than 2 mg/kgE 640 GLYCINE AND ITS SODIUM SALT
Synonyms(gly) | Aminoacetic acid, glycocoll
(Na salt) | Sodium glycinate
Definition |
Chemical name (gly) | Aminoacetic acid
(Na salt) | Sodium glycinate
Chemical formula (gly) | C2H5NO2
(Na salt) | C2H5NO2Na
Einecs (gly) | 200-272-2
(Na salt) | 227-842-3
Molecular weight (gly) | 75,07
(Na salt) | 98
Assay | Content not less than 98,5 % on the anhydrous basis
Description | White crystals or crystalline powder
Identification |
A.Positive test for amino acid (gly and Na salt) | A. | Positive test for amino acid (gly and Na salt) |
A. | Positive test for amino acid (gly and Na salt)
B.Positive test for sodium (Na salt) | B. | Positive test for sodium (Na salt) |
B. | Positive test for sodium (Na salt)
Purity |
Loss on drying (gly) | Not more than 0,2 % (105oC, 3h)
(Na salt) | Not more than 0,2 % (105oC, 3h)
Residue on ignition (gly) | Not more than 0,1 %
(Na salt) | Not more than 0,1 %
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kgE 650 ZINC ACETATE
Synonyms | Acetic acid, zinc salt, dihydrate
Definition |
Chemical name | Zinc acetate dihydrate
Chemical formula | C4H6O4Zn· 2H2O
Molecular weight | 219,51
Assay | Content not less than 98 % and not more than 102 % of C4H6O4Zn · 2H2O
Description | Colourless crystals or fine, off-white powder
Identification |
A.Positive tests for acetate and for zinc | A. | Positive tests for acetate and for zinc |
A. | Positive tests for acetate and for zinc
B.pH of a 5 % solution | B. | pH of a 5 % solution | Between 6,0 and 8,0
B. | pH of a 5 % solution
Purity |
Insoluble matter | Not more than 0,005 %
Chlorides | Not more than 50 mg/kg
Sulphates | Not more than 100 mg/kg
Alkalines and alkaline earths | Not more than 0,2 %
Organic volatile impurities | Passes test
Iron | Not more than 50 mg/kg
Arsenic | Not more than 3 mg/kg
Lead | Not more than 20 mg/kg
Cadmium | Not more than 5 mg/kgE 900 DIMETHYL POLYSILOXANE
Synonyms | Polydimethyl siloxane, silicone fluid, silicone oil, dimethyl silicone
Definition | Dimethylpolysiloxane is a mixture of fully methylated linear siloxane polymers containing repeating units of the formula (CH3)2SiO and stablised with trimethylsiloxy end-blocking units of the formula (CH3)3SiO
Chemical name | Siloxanes and silicones, di-methyl
Chemical formula | (CH3)3-Si-[O-Si(CH3)2]n-O-Si(CH3)3
Assay | Content of total silicon not less than 37,3 % and not more than 38,5 %
Description | Clear, colourless, viscous liquid
Identification |
A.Specific gravity (25o/25oC) | A. | Specific gravity (25o/25oC) | Between 0,964 and 0,977
A. | Specific gravity (25o/25oC)
B.Refractive index [n]D25 | B. | Refractive index [n]D25 | Between 1,400 and 1,405
B. | Refractive index [n]D25
C.Infrared spectrum characteristic of the compound | C. | Infrared spectrum characteristic of the compound |
C. | Infrared spectrum characteristic of the compound
Purity |
Loss on drying | Not more than 0,5 % (150oC, 4h)
Viscosity | Not less than 1,00 · 10-4m2s-1at 25oC
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kgE 901 BEESWAX
Synonyms | White wax, yellow wax
Definition | Yellow bees wax is the wax obtained by melting the walls of the honeycomb made by the honey bee,Apis melliferaL., with hot water and removing foreign matter
White beeswax is obtained by bleaching yellow beeswax
Einecs | 232-383-7 (beeswax)
Description | Yellowish white (white form) or yellowish to greyish brown (yellow form) pieces or plates with a fine-grained and non-crystalline fracture, having an agreeable, honey-like odour
Identification |
A.Melting range | A. | Melting range | Between 62oC and 65oC
A. | Melting range
B.Specific gravity | B. | Specific gravity | About 0,96
B. | Specific gravity
C.Solubility | C. | Solubility | Insoluble in water
C. | Solubility
Sparingly soluble in alcohol
Very soluble in chloroform and ether
Purity |
Acid value | Not less than 17 and not more than 24
Saponification value | 87-104
Peroxide value | Not more than 5
Glycerol and other polyols | Not more than 0,5 % (as glycerol)
Ceresin, paraffins and certain other waxes | Absent
Fats, Japan wax, rosin and soaps | Absent
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kgE 902 CANDELILLA WAX
Definition | Candelilla wax is a purified wax obtained from the leaves of the candelilla plant,Euphorbia antisyphilitica
Einecs | 232-347-0
Description | Hard, yellowish brown, opaque to translucent wax
Identification |
A.Specific gravity | A. | Specific gravity | About 0,983
A. | Specific gravity
B.Melting range | B. | Melting range | Between 68,5oC and 72,5oC
B. | Melting range
C.Solubility | C. | Solubility | Insoluble in water
C. | Solubility
Soluble in chloroform and toluene
Purity |
Acid value | Not less than 12 and not more than 22
Saponification value | Not less than 43 and not more than 65
Glycerol and other polyols | Not more than 0,5 % (as glycerol)
Ceresin, paraffins and certain other waxes | Absent
Fats, Japan wax, rosin and soaps | Absent
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kgE 903 CARNAUBA WAX
Definition | Carnauba wax is a purified wax obtained from the leaf buds and leaves of the Brazilian Mart wax palm,Copernicia cerifera
Einecs | 232-399-4
Description | Light brown to pale yellow powder or flakes or hard and brittle solid with a resinous fracture
Identification |
A.Specific gravity | A. | Specific gravity | About 0,997
A. | Specific gravity
B.Melting range | B. | Melting range | Between 82oC and 86oC
B. | Melting range
C.Solubility | C. | Solubility | Insoluble in water
C. | Solubility
Partly soluble in boiling ethanol
Soluble in chloroform and diethyl ether
Purity |
Sulphated ash | Not more than 0,25 %
Acid value | Not less than 2 and not more than 7
Ester value | Not less than 71 and not more than 88
Unsaponifiable matter | Not less than 50 % and not more than 55 %
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kgE 904 SHELLAC
Synonyms | Bleached shellac, white shellac
Definition | Shellac is the purified and bleached lac, the resinous secretion of the insectLaccifer (Tachardia) laccaKerr (Fam.Coccidae)
Einecs | 232-549-9
Description | Bleached shellac — off-white, amorphous, granular resin
Wax-free bleached shellac — light yellow, amorphous, granular resin
Identification |
A.Solubility | A. | Solubility | Insoluble in water; freely (though very slowly) soluble in alcohol; slightly soluble in acetone
A. | Solubility
B.Acid value | B. | Acid value | Between 60 and 89
B. | Acid value
Purity |
Loss on drying | Not more than 6,0 % (40oC, over silica gel, 15h)
Rosin | Absent
Wax | Bleached shellac: not more than 5,5 %
Wax-free bleached shellac: not more than 0,2 %
Lead | Not more than 2 mg/kgE 905 MICROCRYSTALLINE WAX
Synonyms | Petroleum wax
Definition | Microcrystalline wax is a refined mixture of solid, saturated hydrocarbons, mainly branched paraffin, obtained from petroleum
Description | White to amber, odourless wax
Identification |
A.Solubility | A. | Solubility | Insoluble in water, very slightly soluble in ethanol
A. | Solubility
B.Refractive Index | B. | Refractive Index | nD1001,434 -1,448
B. | Refractive Index
Purity |
Molecular weight | Average not less than 500
Viscosity at 100oC | Not less than 1,1 · 10-5m2s-1
Residue on ignition | Not more than 0,1 %
Carbon number at 5 % distillation point | Not more than 5 % of molecules with carbon number less than 25
Colour | Passes test
Sulphur | Not more than 0,4 %
Arsenic | Not more than 3 mg/kg
Lead | Not more than 3 mg/kg
Polycyclic aromatic compounds | The polycyclic aromatic hydrocarbons, obtained by extraction with dimethyl sulfoxide, shall meet the following ultraviolet absorbency limits:
| nm | Maximum absorbance per cm path length
| 280-289 | 0,15
| 290-299 | 0,12
| 300-359 | 0,08
| 360-400 | 0,02E 907 HYDROGENATED POLY-1-DECENE
Synonyms | Hydrogenated polydec-1-ene
Hydrogenated poly-alpha-olefin
Definition |
Chemical formula | C10nH20n+2where n = 3-6
Molecular weight | 560 (average)
Assay | Not less than 98,5 % of hydrogenated poly-1-decene, having the following oligomer distribution:
C30: 13-37 %
C40: 35-70 %
C50: 9-25 %
C60: 1-7 %
Description |
Identification |
A.Solubility | A. | Solubility | Insoluble in water; slightly soluble in ethanol; soluble in toluene
A. | Solubility
B.Burning | B. | Burning | Burns with a bright flame and a paraffin-like characteristic smell
B. | Burning
Purity |
Viscosity | Between 5,7 × 10-6and 6,1 × 10-6m2s-1at 100oC
Compounds with carbon number less than 30 | Not more than 1,5 %
Readily carbonisable substances | After 10 minutes shaking in a boiling water bath, a tube of sulphuric acid with a 5 g sample of hydrogenated poly-1-decene is not darker than a very slight straw colour
Nickel | Not more than 1 mg/kg
Lead | Not more than 1 mg/kgE 912 MONTAN ACID ESTERS
Definition | Montan acids and/or esters with ethylene glycol and/or 1,3-butanediol and/or glycerol
Chemical name | Montan acid esters
Description | Almost white to yellowish flakes, powder, granules or pellets
Identification |
A.Density (20oC) | A. | Density (20oC) | Between 0,98 and 1,05
A. | Density (20oC)
B.Drop point | B. | Drop point | Greater than 77oC
B. | Drop point
Purity |
Acid value | Not more than 40
Glycerol | Not more than 1 % (by gas chromatography)
Other polyols | Not more than 1 % (by gas chromatography)
Other wax types | Not detectable (by differential scanning calorimetry and/or infrared spectroscopy)
Arsenic | Not more than 2 mg/kg
Chromium | Not more than 3 mg/kg
Lead | Not more than 2 mg/kgE 914 OXIDISED POLYETHYLENE WAX
Definition | Polar reaction products from mild oxidation of polyethylene
Chemical name | Oxidised polyethylene
Description | Almost white flakes, powder, granules or pellets
Identification |
A.Density (20oC) | A. | Density (20oC) | Between 0,92 and 1,05
A. | Density (20oC)
B.Drop point | B. | Drop point | Greater than 95oC
B. | Drop point
Purity |
Acid value | Not more than 70
Viscosity at 120oC | Not less than 8,1 · 10-5m2s-1
Other wax types | Not detectable (by differential scanning calorimetry and/or infrared spectroscopy)
Oxygen | Not more than 9,5 %
Chromium | Not more than 5 mg/kg
Lead | Not more than 2 mg/kgE 920 L-CYSTEINE
Definition | L-cysteine hydrochloride or hydrochloride monohydrate. Human hair may not be used as a source for this substance
Einecs | 200-157-7 (anhydrous)
Chemical formula | C3H7NO2S· HCl· n H20 (where n = 0 or 1)
Molecular weight | 157,62 (anhydrous)
Assay | Content not less than 98,0 % and not more than 101,5 % on the anhydrous basis
Description | White powder or colourless crystals
Identification |
A.Solubility | A. | Solubility | Freely soluble in water and in ethanol
A. | Solubility
B.Melting range | B. | Melting range | Anhydrous form melts at about 175oC
B. | Melting range
C.Specific rotation | C. | Specific rotation | [α]20D: between +5,0oand +8,0oor
C. | Specific rotation
[α]25D: between +4,9oand 7,9o
Purity |
Loss on drying | Between 8,0 % and 12,0 %
Not more than 2,0 % (anhydrous form)
Residue on ignition | Not more than 0,1 %
Ammonium-ion | Not more than 200 mg/kg
Arsenic | Not more than 1,5 mg/kg
Lead | Not more than 5 mg/kgE 927b CARBAMIDE
Synonyms | Urea
Definition |
Einecs | 200-315-5
Chemical formula | CH4N2O
Molecular weight | 60,06
Assay | Content not less than 99,0 % on the anhydrous basis
Description | Colourless to white, prismatic, crystalline powder or small, white pellets
Identification |
A.Solubility | A. | Solubility | Very soluble in water
A. | Solubility
Soluble in ethanol
B.Precipitation with nitric acid | B. | Precipitation with nitric acid | To pass the test a white, crystalline precipitate is formed
B. | Precipitation with nitric acid
C.Colour reaction | C. | Colour reaction | To pass the test a reddish-violet colour is produced
C. | Colour reaction
D.Melting range | D. | Melting range | 132oC to 135oC
D. | Melting range
Purity |
Loss on drying | Not more than 1,0 % (105oC, 1h)
Sulphated ash | Not more than 0,1 %
Ethanol-insoluble matter | Not more than 0,04 %
Alkalinity | Passes test
Ammonium-ion | Not more than 500 mg/kg
Biuret | Not more than 0,1 %
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kgE 938 ARGON
Definition |
Chemical name | Argon
Einecs | 231-147-0
Chemical formula | Ar
Molecular weight | 40
Assay | Not less than 99 %
Description | Colourless, odourless, non-flammable gas
Purity |
Water | Not more than 0,05 %
Methane and other hydrocarbons calculated as methane | Not more than 100 μl/lE 939 HELIUM
Definition |
Chemical name | Helium
Einecs | 231-168-5
Chemical formula | He
Molecular weight | 4
Assay | Not less than 99 %
Description | Colourless, odourless, non-flammable gas
Purity |
Water | Not more than 0,05 %
Methane and other hydrocarbons calculated as methane | Not more than 100 μl/lE 941 NITROGEN
Definition |
Chemical name | Nitrogen
Einecs | 231-783-9
Chemical formula | N2
Molecular weight | 28
Assay | Not less than 99 %
Description | Colourless, odourless, non-flammable gas
Purity |
Water | Not more than 0,05 %
Carbon monoxide | Not more than 10 μl/l
Methane and other hydrocarbons calculated as methane | Not more than 100 μl/l
Nitrogen dioxide and nitrogen oxide | Not more than 10 μl/l
Oxygen | Not more than 1 %E 942 NITROUS OXIDE
Definition |
Chemical name | Nitrous oxide
Einecs | 233-032-0
Chemical formula | N2O
Molecular weight | 44
Assay | Not less than 99 %
Description | Colourless, non-flammable gas, sweetish odour
Purity |
Water | Not more than 0,05 %
Carbon monoxide | Not more than 30 μl/l
Nitrogen dioxide and nitrogen oxide | Not more than 10 μl/lE 943a BUTANE
Synonyms | n-Butane
Definition |
Chemical name | Butane
Chemical formula | CH3CH2CH2CH3
Molecular weight | 58,12
Assay | Content not less than 96 %
Description | Colourless gas or liquid with mild, characteristic odour
Identification |
A.Vapour pressure | A. | Vapour pressure | 108,935 kPa at 20oC
A. | Vapour pressure
Purity |
Methane | Not more than 0,15 % v/v
Ethane | Not more than 0,5 % v/v
Propane | Not more than 1,5 % v/v
Isobutane | Not more than 3,0 % v/v
1,3-butadiene | Not more than 0,1 % v/v
Moisture | Not more than 0,005 %E 943b ISOBUTANE
Synonyms | 2-methyl propane
Definition |
Chemical name | 2-methyl propane
Chemical formula | (CH3)2CH CH3
Molecular weight | 58,12
Assay | Content not less than 94 %
Description | Colourless gas or liquid with mild, characteristic odour
Identification |
A.Vapour pressure | A. | Vapour pressure | 205,465 kPa at 20oC
A. | Vapour pressure
Purity |
Methane | Not more than 0,15 % v/v
Ethane | Not more than 0,5 % v/v
Propane | Not more than 2,0 % v/v
n-Butane | Not more than 4,0 % v/v
1,3 -butadiene | Not more than 0,1 % v/v
Moisture | Not more than 0,005 %E 944 PROPANE
Definition |
Chemical name | Propane
Chemical formula | CH3CH2CH3
Molecular weight | 44,09
Assay | Content not less than 95 %
Description | Colourless gas or liquid with mild, characteristic odour
Identification |
A.Vapour pressure | A. | Vapour pressure | 732,910 kPa at 20oC
A. | Vapour pressure
Purity |
Methane | Not more than 0,15 % v/v
Ethane | Not more than 1,5 % v/v
Isobutane | Not more than 2,0 % v/v
n-Butane | Not more than 1,0 % v/v
1,3-butadiene | Not more than 0,1 % v/v
Moisture | Not more than 0,005 %E 948 OXYGEN
Definition |
Chemical name | Oxygen
Einecs | 231-956-9
Chemical formula | O2
Molecular weight | 32
Assay | Not less than 99 %
Description | Colourless, odourless, non-flammable gas
Purity |
Water | Not more than 0,05 %
Methane and other hydrocarbons calculated as methane | Not more than 100 μl/lE 949 HYDROGEN
Definition |
Chemical name | Hydrogen
Einecs | 215-605-7
Chemical formula | H2
Molecular weight | 2
Assay | Content not less than 99,9 %
Description | Colourless, odourless, highly flammable gas
Purity |
Water | Not more than 0,005 % v/v
Oxygen | Not more than 0,001 % v/v
Nitrogen | Not more than 0,75 % v/vE 950 ACESULFAME KPurity criteria for this additive are the same as set out for this additive in Annex I to Directive 2008/60/EC.
E 951 ASPARTAMEPurity criteria for this additive are the same as set out for this additive in Annex I to Directive 2008/60/EC.
E 953 ISOMALTPurity criteria for this additive are the same as set out for this additive in Annex I to Directive 2008/60/EC.
E 957 THAUMATINPurity criteria for this additive are the same as set out for this additive in Annex I to Directive 2008/60/EC.
E 959 NEOHESPERIDINE DIHYDROCHALCONEPurity criteria for this additive are the same as set out for this additive in Annex I to Directive 2008/60/EC.
E 965(i) MALTITOLPurity criteria for this additive are the same as set out for this additive in Annex I to Directive 2008/60/EC.
E 965(ii) MALTITOL SYRUPPurity criteria for this additive are the same as set out for this additive in Annex I to Directive 2008/60/EC.
E 966 LACTITOLPurity criteria for this additive are the same as set out for this additive in Annex I to Directive 2008/60/EC.
E 967 XYLITOLPurity criteria for this additive are the same as set out for this additive in Annex I to Directive 2008/60/EC.
E 999 QUILLAIA EXTRACT
Synonyms | Soapbark extract, Quillay bark extract, Panama bark extract, Quillai extract, Murillo bark extract, China bark extract
Definition | Quillaia extract is obtained by aqueous extraction ofQuillaia saponariaMolina, or otherQuillaiaspecies, trees of the familyRosaceae. It contains a number of triterpenoid saponins consisting of glycosides of quillaic acid. Some sugars including glucose, galactose, arabinose, xylose, and rhamnose are also present, along with tannin, calcium oxalate and other minor components
Description | Quillaia extract in the powder form is light brown with a pink tinge. It is also available as an aqueous solution
Identification |
A.pH of a 2,5 % solution | A. | pH of a 2,5 % solution | Between 4,5 and 5,5
A. | pH of a 2,5 % solution
Purity |
Water | Not more than 6,0 % (Karl Fischer method) (powder form only)
Arsenic | Not more than 2 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kgE 1103 INVERTASE
Definition | Invertase is produced fromSaccharomyces cerevisiae
Systematic name | β-D-Fructofuranoside fructohydrolase
Enzyme Commission No | EC 3.2.1.26
Einecs | 232-615-7
Purity |
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
Cadmium | Not more than 0,5 mg/kg
Total bacterial count | Not more than 50 000 /g
Salmonellaspp. | Absent by test in 25 g
Coliforms | Not more than 30/g
E. coli | Absent by test in 25 gE 1105 LYSOZYME
Synonyms | Lysozyme hydrochloride
Muramidase
Definition | Lysozyme is a linear polypeptide obtained from hens’ egg whites consisting of 129 amino acids. It possesses enzymatic activity in its ability to hydrolyse the β(1-4) linkages between N-acetylmuramic acid and N-acetylglucosamine in the outer membranes of bacterial species, in particular gram-positive organisms. Is usually obtained as the hydrochloride
Chemical name | Enzyme Commission (EC) No: 3.2.1.17
Einecs | 232-620-4
Molecular weight | About 14 000
Assay | Content not less than 950 mg/g on the anhydrous basis
Description | White, odourless powder having a slightly sweet taste
Identification |
A.Isoelectric point 10,7 | A. | Isoelectric point 10,7 |
A. | Isoelectric point 10,7
B.pH of a 2 % aqueous solution between 3,0 and 3,6 | B. | pH of a 2 % aqueous solution between 3,0 and 3,6 |
B. | pH of a 2 % aqueous solution between 3,0 and 3,6
C.Absorption maximum of an aqueous solution (25 mg/100 ml) at 281 nm, a minimum at 252 nm | C. | Absorption maximum of an aqueous solution (25 mg/100 ml) at 281 nm, a minimum at 252 nm |
C. | Absorption maximum of an aqueous solution (25 mg/100 ml) at 281 nm, a minimum at 252 nm
Purity |
Water content | Not more than 6,0 % (Karl Fischer method) (powder form only)
Residue on ignition | Not more than 1,5 %
Nitrogen | Not less than 16,8 % and not more than 17,8 %
Arsenic | Not more than 1 mg/kg
Lead | Not more than 5 mg/kg
Mercury | Not more than 1 mg/kg
Heavy metals (as Pb) | Not more than 10 mg/kg
Microbiological criteria |
Total bacterial count | Not more than 5 × 104col/g
Salmonellae | Absent in 25 g
Staphylococcus aureus | Absent in 1 g
Escherichia coli | Absent in 1 gE 1200 POLYDEXTROSE
Synonyms | Modified polydextroses
Definition | Randomly bonded glucose polymers with some sorbitol end-groups, and with citric acid or phosphoric acid residues attached to the polymers by mono or diester bonds. They are obtained by melting and condensation of the ingredients and consist of approximately 90 parts D-glucose, 10 parts sorbitol and 1 part citric acid or 0,1 part phosphoric acid. The 1,6-glucosidic linkage predominates in the polymers but other linkages are present. The products contain small quantities of free glucose, sorbitol, levoglucosan (1,6-anhydro-D-glucose) and citric acid and may be neutralised with any food grade base and/or decolorised and deionised for further purification. The products may also be partially hydrogenated with Raney nickel catalyst to reduce residual glucose. Polydextrose-N is neutralised polydextrose
Assay | Content not less than 90 % of polymer on the ash free and anhydrous basis
Description | White to light tan-coloured solid. Polydextroses dissolve in water to give a clear, colourless to straw coloured solution
Identification |
A.Positive tests for sugar and for reducing sugar | A. | Positive tests for sugar and for reducing sugar |
A. | Positive tests for sugar and for reducing sugar
B.pH of a 10 % solution | B. | pH of a 10 % solution | Between 2,5 and 7,0 for polydextrose
B. | pH of a 10 % solution
Between 5,0 and 6,0 for polydextrose-N
Purity |
Water | Not more than 4,0 % (Karl Fischer method)
Sulphated ash | Not more than 0,3 % (polydextrose)
Not more than 2,0 % (polydextrose N)
Nickel | Not more than 2 mg/kg for hydrogenated polydextroses
1,6-Anhydro-D-glucose | Not more than 4,0 % on the ash-free and the dried basis
Glucose and sorbitol | Not more than 6,0 % combined on the ash-free and the dried basis; glucose and sorbitol are determined separately
Molecular weight limit | Negative test for polymers of molecular weight greater than 22 000
5-Hydroxy-methylfurfural | Not more than 0,1 % (polydextrose)
Not more than 0,05 % (polydextrose-N)
Lead | Not more than 0,5 mg/kgE 1201 POLYVINYLPYRROLIDONE
Synonyms | Povidone
PVP
Soluble polyvinylpyrrolidone
Definition |
Chemical name | Polyvinylpyrrolidone, poly-[1-(2-oxo-1-pyrrolidinyl)-ethylene]
Chemical formula | (C6H9NO)n
Molecular weight | Not less than 25 000
Assay | Content not less than 11,5 % and not more than 12,8 % of nitrogen (N) on the anhydrous basis
Description | White or nearly white powder
Identification |
A.Solubility | A. | Solubility | Soluble in water and in ethanol. Insoluble in ether
A. | Solubility
B.pH of a 5 % solution | B. | pH of a 5 % solution | Between 3,0 and 7,0
B. | pH of a 5 % solution
Purity |
Water | Not more than 5 % (Karl Fischer)
Total ash | Not more than 0,1 %
Aldehyde | Not more than 500 mg/kg (as acetaldehyde)
Free-N-vinylpyrrolidone | Not more than 10 mg/kg
Hydrazine | Not more than 1 mg/kg
Lead | Not more than 5 mg/kgE 1202 POLYVINYLPOLYPYRROLIDONE
Synonyms | Crospovidone
Cross linked polyvidone
Insoluble polyvinylpyrrolidone
Definition | Polyvinylpolypyrrolidone is a poly-[1-(2-oxo-1-pyrrolidinyl)-ethylene], cross linked in a random fashion. It is produced by the polymerisation of N-vinyl-2-pyrrolidone in the presence of either caustic catalyst or N, N’-divinyl-imidazolidone. Due to its insolubility in all common solvents the molecular weight range is not amenable to analytical determination
Chemical name | Polyvinylpyrrolidone, poly-[1-(2-oxo-1-pyrrolidinyl)-ethylene]
Chemical formula | (C6H9NO)n
Assay | Content not less than 11 % and not more than 12,8 % nitrogen (N) on the anhydrous basis
Description | A white hygroscopic powder with a faint, non-objectionable odour
Identification |
A.Solubility | A. | Solubility | Insoluble in water, ethanol and ether
A. | Solubility
B.pH of a 1 % suspension in water | B. | pH of a 1 % suspension in water | Between 5,0 and 8,0
B. | pH of a 1 % suspension in water
Purity |
Water | Not more than 6 % (Karl Fischer)
Sulphated ash | Not more than 0,4 %
Water-soluble matter | Not more than 1 %
Free-N-vinylpyrrolidone | Not more than 10 mg/kg
Free-N, N’-divinyl-imidazolidone | Not more than 2 mg/kg
Lead | Not more than 5 mg/kgE 1204 PULLULAN
Definition | Linear, neutral glucan consisting mainly of maltotriose units connected by -1,6 glycosidic bonds. It is produced by fermentation from a food-grade hydrolysed starch using a non-toxin-producing strain ofAureobasidium pullulans. After completion of the fermentation, the fungal cells are removed by microfiltration, the filtrate is heat-sterilised and pigments and other impurities are removed by adsorption and ion exchange chromatography
Einecs | 232-945-1
Chemical formula | (C6H10O5)x
Assay | Not less than 90 % of glucan on the dried basis
Description | White to off-white odourless powder
Identification |
A.Solubility | A. | Solubility | Soluble in water, practically insoluble in ethanol
A. | Solubility
B.pH of 10 % solution | B. | pH of 10 % solution | 5,0 to 7,0
B. | pH of 10 % solution
C.Precipitation with polyethylene glycol 600 | C. | Precipitation with polyethylene glycol 600 | Add 2 ml of polyethylene glycol 600 to 10 ml of a 2 % aqueous solution of pullulan. A white precipitate is formed
C. | Precipitation with polyethylene glycol 600
D.Depoly-merisation with pullulanase | D. | Depoly-merisation with pullulanase | Prepare two test tubes each with 10 ml of a 10 % pullulan solution. Add 0,1 ml pullulanase solution having activity 10 units/g to one test tube, and 0,1 ml water to the other. After incubation at about 25oC for 20 minutes, the viscosity of the pullulanase-treated solution is visibly lower than that of the untreated solution
D. | Depoly-merisation with pullulanase
Purity |
Loss on drying | Not more than 6 % (90oC, pressure not more than 50 mm Hg, 6 h)
Mono-, di- and oligosaccharides | Not more than 10 % expressed as glucose
Viscosity | 100 to 180 mm2/s (10 % w/w aqueous solution at 30oC)
Lead | Not more than 1 mg/kg
Yeast and moulds | Not more than 100 colonies per gram
Coliforms | Absent in 25 g
Salmonella | Absent in 25 gE 1404 OXIDISED STARCH
Definition | Oxidised starch is starch treated with sodium hypochlorite
Description | White or nearly white powder or granules or (if pregelatinised) flakes, amorphous powder or coarse particles
Identification |
A.If not pregelatinised: by microscopic observation | A. | If not pregelatinised: by microscopic observation |
A. | If not pregelatinised: by microscopic observation
B.Iodine staining positive (dark blue to light red colour) | B. | Iodine staining positive (dark blue to light red colour) |
B. | Iodine staining positive (dark blue to light red colour)
Purity(all values expressed on an anhydrous basis except for loss on drying) |
Loss on drying | Not more than 15,0 % for cereal starch
Not more than 21,0 % for potato starch
Not more than 18,0 % for other starches
Carboxyl groups | Not more than 1,1 %
Sulphur dioxide | Not more than 50 mg/kg for modified cereal starches
Not more than 10 mg/kg for other modified starches, unless otherwise specified
Arsenic | Not more than 1 mg/kg
Lead | Not more than 2 mg/kg
Mercury | Not more than 0,1 mg/kgE 1410 MONOSTARCH PHOSPHATE
Definition | Monostarch phosphate is starch esterified with ortho-phosphoric acid, or sodium or potassium ortho-phosphate or sodium tripolyphosphate
Description | White or nearly white powder or granules or (if pregelatinised) flakes, amorphous powder or coarse particles
Identification |
A.If not pregelatinised: by microscopic observation | A. | If not pregelatinised: by microscopic observation |
A. | If not pregelatinised: by microscopic observation
B.Iodine staining positive (dark blue to light red colour) | B. | Iodine staining positive (dark blue to light red colour) |
B. | Iodine staining positive (dark blue to light red colour)
Purity(all values expressed on an anhydrous basis except for loss on drying) |
Loss on drying | Not more than 15,0 % for cereal starch
Not more than 21,0 % for potato starch
Not more than 18,0 % for other starches
Residual phosphate | Not more than 0,5 % (as P) for wheat or potato starch
Not more than 0,4 % (as P) for other starches
Sulphur dioxide | Not more than 50 mg/kg for modified cereal starches
Not more than 10 mg/kg for other modified starches, unless otherwise specified
Arsenic | Not more than 1 mg/kg
Lead | Not more than 2 mg/kg
Mercury | Not more than 0,1 mg/kgE 1412 DISTARCH PHOSPHATE
Definition | Distarch phosphate is starch cross-linked with sodium trimetaphosphate or phosphorus oxychloride
Description | White or nearly white powder or granules or (if pregelatinised) flakes, amorphous powder or coarse particles
Identification |
A.If not pregelatinised: by microscopic observation | A. | If not pregelatinised: by microscopic observation |
A. | If not pregelatinised: by microscopic observation
B.Iodine staining positive (dark blue to light red colour) | B. | Iodine staining positive (dark blue to light red colour) |
B. | Iodine staining positive (dark blue to light red colour)
Purity(all values expressed on an anhydrous basis except for loss on drying) |
Loss on drying | Not more than 15,0 % for cereal starch
Not more than 21,0 % for potato starch
Not more than 18,0 % for other starches
Residual phosphate | Not more than 0,5 % (as P) for wheat or potato starch
Not more than 0,4 % (as P) for other starches
Sulphur dioxide | Not more than 50 mg/kg for modified cereal starches
Not more than 10 mg/kg for other modified starches, unless otherwise specified
Arsenic | Not more than 1 mg/kg
Lead | Not more than 2 mg/kg
Mercury | Not more than 0,1 mg/kgE 1413 PHOSPHATED DISTARCH PHOSPHATE
Definition | Phosphated distarch phosphate is starch having undergone a combination of treatments as described for monostarch phosphate and for distarch phosphate
Description | White or nearly white powder or granules or (if pregelatinised) flakes, amorphous powder or coarse particles
Identification |
A.If not pregelatinised: by microscopic observation | A. | If not pregelatinised: by microscopic observation |
A. | If not pregelatinised: by microscopic observation
B.Iodine staining positive (dark blue to light red colour) | B. | Iodine staining positive (dark blue to light red colour) |
B. | Iodine staining positive (dark blue to light red colour)
Purity(all values expressed on an anhydrous basis except for loss on drying) |
Loss on drying | Not more than 15,0 % for cereal starch
Not more than 21,0 % for potato starch
Not more than 18,0 % for other starches
Residual phosphate | Not more than 0,5 % (as P) for wheat or potato starch
Not more than 0,4 % (as P) for other starches
Sulphur dioxide | Not more than 50 mg/kg for modified cereal starches
Not more than 10 mg/kg for other modified starches, unless otherwise specified
Arsenic | Not more than 1 mg/kg
Lead | Not more than 2 mg/kg
Mercury | Not more than 0,1 mg/kgE 1414 ACETYLATED DISTARCH PHOSPHATE
Definition | Acetylated distarch phosphate is starch cross-linked with sodium trimetaphosphate or phosphorus oxychloride and esterified by acetic anhydride or vinyl acetate
Description | White or nearly white powder or granules or (if pregelatinised) flakes, amorphous powder or coarse particles
Identification |
A.If not pregelatinised: by microscopic observation | A. | If not pregelatinised: by microscopic observation |
A. | If not pregelatinised: by microscopic observation
B.Iodine staining positive (dark blue to light red colour) | B. | Iodine staining positive (dark blue to light red colour) |
B. | Iodine staining positive (dark blue to light red colour)
Purity(all values expressed on an anhydrous basis except for loss on drying) |
Loss on drying | Not more than 15,0 % for cereal starch
Not more than 21,0 % for potato starch
Not more than 18,0 % for other starches
Acetyl groups | Not more than 2,5 %
Residual phosphate | Not more than 0,14 % (as P) for wheat or potato starch
Not more than 0,04 % (as P) for other starches
Vinyl acetate | Not more than 0,1 mg/kg
Sulphur dioxide | Not more than 50 mg/kg for modified cereal starches
Not more than 10 mg/kg for other modified starches, unless otherwise specified
Arsenic | Not more than 1 mg/kg
Lead | Not more than 2 mg/kg
Mercury | Not more than 0,1 mg/kgE 1420 ACETYLATED STARCH
Synonyms | Starch acetate
Definition | Acetylated starch is starch esterified with acetic anhydride or vinyl acetate
Description | White or nearly white powder or granules or (if pregelatinised) flakes, amorphous powder or coarse particles
Identification |
A.If not pregelatinised: by microscopic observation | A. | If not pregelatinised: by microscopic observation |
A. | If not pregelatinised: by microscopic observation
B.Iodine staining positive (dark blue to light red colour) | B. | Iodine staining positive (dark blue to light red colour) |
B. | Iodine staining positive (dark blue to light red colour)
Purity(all values expressed on an anhydrous basis except for loss on drying) |
Loss on drying | Not more than 15,0 % for cereal starch
Not more than 21,0 % for potato starch
Not more than 18,0 % for other starches
Acetyl groups | Not more than 2,5 %
Vinyl acetate | Not more than 0,1 mg/kg
Sulphur dioxide | Not more than 50 mg/kg for modified cereal starches
Not more than 10 mg/kg for other modified starches, unless otherwise specified
Arsenic | Not more than 1 mg/kg
Lead | Not more than 2 mg/kg
Mercury | Not more than 0,1 mg/kgE 1422 ACETYLATED DISTARCH ADIPATE
Definition | Acetylated distarch adipate is starch cross-linked with adipic anhydride and esterified with acetic anhydride
Description | White or nearly white powder or granules or (if pregelatinised) flakes, amorphous powder or coarse particles
Identification |
A.If not pregelatinised: by microscopic observation | A. | If not pregelatinised: by microscopic observation |
A. | If not pregelatinised: by microscopic observation
B.Iodine staining positive (dark blue to light red colour) | B. | Iodine staining positive (dark blue to light red colour) |
B. | Iodine staining positive (dark blue to light red colour)
Purity(all values expressed on an anhydrous basis except for loss on drying) |
Loss on drying | Not more than 15,0 % for cereal starch
Not more than 21,0 % for potato starch
Not more than 18,0 % for other starches
Acetyl groups | Not more than 2,5 %
Adipate groups | Not more than 0,135 %
Sulphur dioxide | Not more than 50 mg/kg for modified cereal starches
Not more than 10 mg/kg for other modified starches, unless otherwise specified
Arsenic | Not more than 1 mg/kg
Lead | Not more than 2 mg/kg
Mercury | Not more than 0,1 mg/kgE 1440 HYDROXYPROPYL STARCH
Definition | Hydroxypropyl starch is starch etherified with propylene oxide
Description | White or nearly white powder or granules or (if pregelatinised) flakes, amorphous powder or coarse particles
Identification |
A.If not pregelatinised: by microscopic observation | A. | If not pregelatinised: by microscopic observation |
A. | If not pregelatinised: by microscopic observation
B.Iodine staining positive (dark blue to light red colour) | B. | Iodine staining positive (dark blue to light red colour) |
B. | Iodine staining positive (dark blue to light red colour)
Purity(all values expressed on an anhydrous basis except for loss on drying) |
Loss on drying | Not more than 15,0 % for cereal starch
Not more than 21,0 % for potato starch
Not more than 18,0 % for other starches
Hydroxypropyl groups | Not more than 7,0 %
Propylene chlorohydrin | Not more than 1 mg/kg
Sulphur dioxide | Not more than 50 mg/kg for modified cereal starches
Not more than 10 mg/kg for other modified starches, unless otherwise specified
Arsenic | Not more than 1 mg/kg
Lead | Not more than 2 mg/kg
Mercury | Not more than 0,1 mg/kgE 1442 HYDROXYPROPYL DISTARCH PHOSPHATE
Definition | Hydroxypropyl distarch phosphate is starch cross-linked with sodium trimetaphosphate or phosphorus oxychloride and etherified with propylene oxide
Description | White or nearly white powder or granules or (if pregelatinised) flakes, amorphous powder or coarse particles
Identification |
A.If not pregelatinised: by microscopic observation | A. | If not pregelatinised: by microscopic observation |
A. | If not pregelatinised: by microscopic observation
B.Iodine staining positive (dark blue to light red colour) | B. | Iodine staining positive (dark blue to light red colour) |
B. | Iodine staining positive (dark blue to light red colour)
Purity(all values expressed on an anhydrous basis except for loss on drying) |
Loss on drying | Not more than 15,0 % for cereal starch
Not more than 21,0 % for potato starch
Not more than 18,0 % for other starches
Hydroxypropyl groups | Not more than 7,0 %
Residual phosphate | Not more than 0,14 % (as P) for wheat or potato starch
Not more than 0,04 (as P) for other starches
Propylene chlorohydrin | Not more than 1 mg/kg
Sulphur dioxide | Not more than 50 mg/kg for modified cereal starches
Not more than 10 mg/kg for other modified starches, unless otherwise specified
Arsenic | Not more than 1 mg/kg
Lead | Not more than 2 mg/kg
Mercury | Not more than 0,1 mg/kgE 1450 STARCH SODIUM OCTENYL SUCCINATE
Synonyms | SSOS
Definition | Starch sodium octenyl succinate is starch esterified with octenylsuccinic anhydride
Description | White or nearly white powder or granules or (if pregelatinised) flakes, amorphous powder or coarse particles
Identification |
A.If not pregelatinised: by microscopic observation | A. | If not pregelatinised: by microscopic observation |
A. | If not pregelatinised: by microscopic observation
B.Iodine staining positive (dark blue to light red colour) | B. | Iodine staining positive (dark blue to light red colour) |
B. | Iodine staining positive (dark blue to light red colour)
Purity(all values expressed on an anhydrous basis except for loss on drying) |
Loss on drying | Not more than 15,0 % for cereal starch
Not more than 21,0 % for potato starch
Not more than 18,0 % for other starches
Octenylsuccinyl groups | Not more than 3 %
Octenylsuccinic acid residue | Not more than 0,3 %
Sulphur dioxide | Not more than 50 mg/kg for modified cereal starches
Not more than 10 mg/kg for other modified starches, unless otherwise specified
Arsenic | Not more than 1 mg/kg
Lead | Not more than 2 mg/kg
Mercury | Not more than 0,1 mg/kgE 1451 ACETYLATED OXIDISED STARCH
Definition | Acetylated oxidised starch is starch treated with sodium hypochlorite followed by esterification with acetic anhydride
Description | White or nearly white powder or granules or (if pregelatinised) flakes, amorphous powder or coarse particles
Identification |
A.If not pregelatinised: by microscopic observation | A. | If not pregelatinised: by microscopic observation |
A. | If not pregelatinised: by microscopic observation
B.Iodine staining positive (dark blue to light red colour) | B. | Iodine staining positive (dark blue to light red colour) |
B. | Iodine staining positive (dark blue to light red colour)
Purity(all values expressed on an anhydrous basis except for loss on drying) |
Loss on drying | Not more than 15,0 % for cereal starch
Not more than 21,0 % for potato starch
Not more than 18,0 % for other starches
Carboxyl groups | Not more than 1,3 %
Acetyl groups | Not more than 2,5 %
Sulphur dioxide | Not more than 50 mg/kg for modified cereal starches
Not more than 10 mg/kg for other modified starches, unless otherwise specified
Arsenic | Not more than 1 mg/kg
Lead | Not more than 2 mg/kg
Mercury | Not more than 0,1 mg/kgE 1452 STARCH ALUMINIUM OCTENYL SUCCINATE
Synonyms | SAOS
Definition | Starch aluminium octenyl succinate is starch esterified with octenylsuccinic anhydride and treated with aluminium sulphate
Description | White or nearly white powder or granules or (if pregelatinised) flakes, amorphous powder or coarse particles
Identification |
A.If not pregelatinised: by microscopic observation | A. | If not pregelatinised: by microscopic observation |
A. | If not pregelatinised: by microscopic observation
B.Iodine staining positive (dark blue to light red colour) | B. | Iodine staining positive (dark blue to light red colour) |
B. | Iodine staining positive (dark blue to light red colour)
Purity(all values expressed on an anhydrous basis except for loss on drying) |
Loss on drying | Not more than 21,0 %
Octenylsuccinyl groups | Not more than 3 %
Octenylsuccinic acid residue | Not more than 0,3 %
Sulphur dioxide | Not more than 50 mg/kg for modified cereal starches
Not more than 10 mg/kg for the other modified starches, unless otherwise specified
Arsenic | Not more than 1 mg/kg
Lead | Not more than 2 mg/kg
Mercury | Not more than 0,1 mg/kg
Aluminium | Not more than 0,3 %E 1505 TRIETHYL CITRATE
Synonyms | Ethyl citrate
Definition |
Chemical name | Triethyl-2-hydroxypropan-1,2,3-tricarboxylate
Einecs | 201-070-7
Chemical formula | C12H20O7
Molecular weight | 276,29
Assay | Content not less than 99,0 %
Description | Odourless, practically colourless, oily liquid
Identification |
A.Specific gravity | A. | Specific gravity | d2525: 1,135 -1,139
A. | Specific gravity
B.Refractive index | B. | Refractive index | [n]D20: 1,439 -1,441
B. | Refractive index
Purity |
Water | Not more than 0,25 % (Karl Fischer method)
Acidity | Not more than 0,02 % (as citric acid)
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kgE 1517 GLYCERYL DIACETATE
Synonyms | Diacetin
Definition | Glyceryl diacetate consist predominantly of a mixture of the 1,2 – and 1,3 -diacetates of glycerol, with minor amounts of the mono- and tri-esters
Chemical names | Glyceryl diacetate
1, 2, 3-propanetriol diacetate
Chemical formula | C7H12O5
Molecular weight | 176,17
Assay | Not less than 94,0 %
Description | Clear, colourless, hygroscopic, somewhat oily liquid with a slight, fatty odour
Identification |
A.Solubility | A. | Solubility | Soluble in water. Miscible with ethanol
A. | Solubility
B.Positive tests for glycerol and acetate | B. | Positive tests for glycerol and acetate |
B. | Positive tests for glycerol and acetate
C.Specific gravity | C. | Specific gravity | d2020: 1,175 -1,195
C. | Specific gravity
D.Boiling range | D. | Boiling range | Between 259 and 261oC
D. | Boiling range
Purity |
Total ash | Not more than 0,02 %
Acidity | Not more than 0,4 % (as ascetic acid)
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kgE 1518 GLYCERYL TRIACETATE
Synonyms | Triacetin
Definition |
Chemical name | Glyceryl triacetate
Einecs | 203-051-9
Chemical formula | C9H14O6
Molecular weight | 218,21
Assay | Content not less than 98,0 %
Description | Colourless, somewhat oily liquid having a slightly fatty odour
Identification |
A.Positive tests for acetate and for glycerol | A. | Positive tests for acetate and for glycerol |
A. | Positive tests for acetate and for glycerol
B.Refractive index | B. | Refractive index | Between 1,429 and 1,431 at 25oC
B. | Refractive index
C.Specific gravity (25oC/25oC) | C. | Specific gravity (25oC/25oC) | Between 1,154 and 1,158
C. | Specific gravity (25oC/25oC)
D.Boiling range | D. | Boiling range | Between 258 and 270oC
D. | Boiling range
Purity |
Water | Not more than 0,2 % (Karl Fischer method)
Sulphated ash | Not more than 0,02 % (as citric acid)
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kgE 1519 BENZYL ALCOHOL
Synonyms | Phenylcarbinol
Phenylmethyl alcohol
Benzenemethanol
Alpha-hydroxytoluene
Definition |
Chemical names | Benzyl alcohol
Phenylmethanol
Chemical formula | C7H8O
Molecular weight | 108,14
Assay | Not less than 98,0 %
Description | Colourless, clear liquid with a faint, aromatic odour
Identification |
A.Solubility | A. | Solubility | Soluble in water, ethanol and ether
A. | Solubility
B.Refractive index | B. | Refractive index | [n]D20: 1,538 -1,541
B. | Refractive index
C.Specific gravity | C. | Specific gravity | d2525: 1,042 -1,047
C. | Specific gravity
D.Positive test for peroxides | D. | Positive test for peroxides |
D. | Positive test for peroxides
Purity |
Distillation range | Not less than 95 % v/v distils between 202 and 208oC
Acid value | Not more than 0,5
Aldehydes | Not more than 0,2 % v/v (as bezaldehyde)
Lead | Not more than 5 mg/kgE 1520 PROPANE-1,2-DIOL
Synonyms | Propylene glycol
Definition |
Chemical names | 1,2-dihydroxypropane
Einecs | 200-338-0
Chemical formula | C3H8O2
Molecular weight | 76,10
Assay | Content not less than 99,5 % on the anhydrous basis
Description | Clear, colourless, hygroscopic, viscous liquid
Identification |
A.Solubility | A. | Solubility | Soluble in water, ethanol and acetone
A. | Solubility
B.Specific gravity | B. | Specific gravity | d2020: 1,035 -1,040
B. | Specific gravity
C.Refractive index | C. | Refractive index | [n]20D: 1,431 -1,433
C. | Refractive index
Purity |
Distillation range | 99 % v/v distils between 185oC-189oC
Sulphated ash | Not more than 0,07 %
Water | Not more than 1,0 % (Karl Fischer method)
Lead | Not more than 5 mg/kgPOLYETHYLENE GLYCOL 6000
Synonyms | PEG 6000
Macrogol 6000
Definition | Polyethylene glycol 6000 is a mixture of polymers with the general formula H-(OCH2-CH)-OH corresponding to an average relative molecular mass of approximately 6 000
Chemical formula | (C2H4O)nH2O (n = number of ethylene oxide units corresponding to a molecular weight of 6 000 , about 140)
Molecular weight | 5 600 -7 000
Assay | Not less than 90,0 % and not more than 110,0 %
Description | A white or almost white solid with a waxy or paraffin-like appearance
Identification |
A.Solubility | A. | Solubility | Very soluble in water and in methylene chloride. Practically insoluble in alcohol, in ether and in fatty and mineral oils
A. | Solubility
B.Melting range | B. | Melting range | Between 55oC and 61oC
B. | Melting range
Purity |
Viscosity | Between 0,220 and 0,275 kgm-1s-1at 20oC
Hydroxyl value | Between 16 and 22
Sulphated ash | Not more than 0,2 %
Ethylene oxide | Not more than 0,2 mg/kg
Arsenic | Not more than 3 mg/kg
Lead | Not more than 5 mg/kg
(1)
OJ L 226, 22.9.1995, p. 1.
(*1) Starch TS: triturate 0,5 g starch (potato starch, maize starch or soluable starch) with 5 ml of water; to the resulting paste add a sufficient quantity of water to give a total volume of 100 ml, stirring all the time. Boil for a few minutes, allow to cool, filter. The starch must be freshly prepared.
(2) Cobalt chloride TSC: dissolve approximately 65 g of cobalt chloride CoCl2·6H2O in a sufficient quantity of a mixture of 25 ml hydrochloric acid and 975 ml of water to give a total volume of 1 litre. Place exactly 5 ml of this solution in a round-bottomed flask containing 250 ml of iodine solution, add 5 ml of 3 % hydrogen peroxide, then 15 ml of a 20 % solution of sodium hydroxide. Boil for 10 minutes, allow to cool, add 2 g of potassium iodide and 20 ml of 25 % sulphuric acid. After the precipitate is completely dissolved, titrate the liberated iodine with sodium thiosulphate (0,1 N) in the presence of starch TS (*1). 1 ml of sodium thiosulphate (0,1 N) corresponds to 23,80 mg of CoCl2·6H2O. Adjust final volume of solution by the addition of a sufficient quantity of the hydrochloric acid/water mixture to give a solution containing 59,5 mg of CoCl2·6H2O per ml.
(3) Ferric chloride TSC: dissolve approximately 55 g of ferric chloride in a sufficient quantity of a mixture of 25 ml of hydrochloric acid and 975 ml of water to give a total volume of 1 litre. Place 10 ml of this solution in a round-bottomed flask containing 250 ml of iodine solution, add 15 ml of water and 3 g of potassium iodide; leave the mixture to stand for 15 minutes. Dilute with 100 ml of water then titrate the liberated iodine with sodium thiosulphate (0,1 N) in the presence of starch TS (*1). 1 ml of sodium thiosulphate (0,1 N) corresponds to 27,03 mg of FeCl3·6H2O. Adjust final volume of solution by the addition of a sufficient quantity of the hydrochloric acid/water to give a solution containing 45,0 mg of FeCl3·6H2O per ml.
(4) Copper sulphate TSC: dissolve approximate by 65 g of copper sulphate CuSO4·5H2O in a sufficient quantity of a mixture of 25 ml of hydrochloric acid and 975 ml of water to give a total volume of 1 litre. Place 10 ml of this solution in a round-bottomed flask containing 250 ml of iodine solution, add 40 ml of water, 4 ml of acetic acid and 3 g of potassium iodide. Titrate the liberated iodine with sodium thiosulphate (0,1 N) in the presence of starch TS (*1). 1 ml of sodium thiosulphate (0,1 N) corresponds to 24,97 mg of CuSO4·5H2O. Adjust final volume of solution by the addition of a sufficient quantity of the hydrochloric acid/water mixture to give a solution containing 62,4 mg of CuSO4·5H2O per ml.
(5) When labelled ‘for food use’, nitrite may only be sold in a mixture with salt or a salt substitute.
(6) When labelled ‘for food use’, nitrite may only be sold in a mixture with salt or a salt substitute.
(7)
OJ L 158, 18.6.2008, p. 17.
PART A
ANNEX IIRepealed Directive with list of its successive amendments
(referred to in Article 2)
Commission Directive 96/77/ECCommission Directive 98/86/ECCommission Directive 2000/63/ECCommission Directive 2001/30/ECCommission Directive 2002/82/ECCommission Directive 2003/95/ECCommission Directive 2004/45/ECCommission Directive 2006/129/EC | | Commission Directive 98/86/EC | | Commission Directive 2000/63/EC | | Commission Directive 2001/30/EC | | Commission Directive 2002/82/EC | | Commission Directive 2003/95/EC | | Commission Directive 2004/45/EC | | Commission Directive 2006/129/EC | (OJ L 339, 30.12.1996, p. 1)(OJ L 334, 9.12.1998, p. 1)(OJ L 277, 30.10.2000, p. 1)(OJ L 146, 31.5.2001, p. 1)(OJ L 292, 28.10.2002, p. 1)(OJ L 283, 31.10.2003, p. 71)(OJ L 113, 20.4.2004, p. 19)(OJ L 346, 9.12.2006, p. 15) | | (OJ L 334, 9.12.1998, p. 1) | | (OJ L 277, 30.10.2000, p. 1) | | (OJ L 146, 31.5.2001, p. 1) | | (OJ L 292, 28.10.2002, p. 1) | | (OJ L 283, 31.10.2003, p. 71) | | (OJ L 113, 20.4.2004, p. 19) | | (OJ L 346, 9.12.2006, p. 15)
| Commission Directive 98/86/EC
| Commission Directive 2000/63/EC
| Commission Directive 2001/30/EC
| Commission Directive 2002/82/EC
| Commission Directive 2003/95/EC
| Commission Directive 2004/45/EC
| Commission Directive 2006/129/EC
| (OJ L 334, 9.12.1998, p. 1)
| (OJ L 277, 30.10.2000, p. 1)
| (OJ L 146, 31.5.2001, p. 1)
| (OJ L 292, 28.10.2002, p. 1)
| (OJ L 283, 31.10.2003, p. 71)
| (OJ L 113, 20.4.2004, p. 19)
| (OJ L 346, 9.12.2006, p. 15)PART BList of time-limits for transposition into national law
(referred to in Article 2)
Directive | Time-limit for transposition
96/77/EC | 1 July 1997(1)
98/86/EC | 1 July 1999(2)
2000/63/EC | 31 March 2001(3)
2001/30/EC | 1 June 2002(4)
2002/82/EC | 31 August 2003
2003/95/EC | 1 November 2004(5)
2004/45/EC | 1 April 2005(6)
2006/129/EC | 15 February 2008
(1) According to Article 3(2) of Directive 96/77/EC, products put on the market or labelled before 1 July 1997 which do not comply with this Directive may be marketed until stocks are exhausted.
(2) According to Article 2(2) of Directive 98/86/EC, products put on the market or labelled before 1 July 1999 which do not comply with this Directive may be marketed until stocks are exhausted.
(3) According to Article 2(3) of Directive 2000/63/EC, products put on the market or labelled before 31 March 2001 which do not comply with this Directive may be marketed until stocks are exhausted.
(4) According to Article 2(3) of Directive 2001/30/EC, products put on the market or labelled before 1 June 2002 which do not comply with this Directive may be marketed until stocks are exhausted.
(5) According to Article 3 of Directive 2003/95/EC, products put on the market or labelled before 1 November 2004 which do not comply with this Directive may be marketed until stocks are exhausted.
(6) According to Article 3 of Directive 2004/45/EC, products put on the market or labelled before 1 April 2005 which do not comply with this Directive may be marketed until stocks are exhausted.
ANNEX IIICorrelation table
Directive 96/77/EC | This Directive
Article 1 | Article 1
Article 2 | —
Article 3 | —
— | Article 2
Article 4 | Article 3
Article 5 | Article 4
Annex | Annex I
— | Annex II
— | Annex III