Calcium Glycerophosphate FCC Food BP Ph Eur USP Supplement Grade Manufacturers
SDS of Calcium Glycerophosphate
Calcium Glycerophosphate FCC Food Grade
C3H7CaO6P Formula wt 210.14
CAS Number 27214-00-2
DESCRIPTION
Calcium Glycerophosphate occurs as a fine, white powder. It is somewhat hygroscopic. One gram dissolves in about 50 mL of water at 25C. It is more soluble in water at a lower temperature, and citric acid increases its solubility in water. It is insoluble in alcohol.
Function: Nutrient.
REQUIREMENTS
Identification: A saturated sample solution gives positive tests for Calcium.
Assay: Not less than 98.0% and not more than 100.5% of C3H7CaO6P, after drying.
Alkalinity: Passes test.
Lead: Not more than 4 mg/kg.
Loss on Drying: Not more than 12.0%.
Calcium Glycerophosphate USP Dietary Supplement Grade:
C3H7CaO6P --- 210.14
1,2,3-Propanetriol, mono(dihydrogen phosphate) calcium salt (1:1);
Calcium glycerophosphate CAS Number 27214-00-2.
DEFINITION
Calcium Glycerophosphate is a mixture, in variable proportions, of calcium (RS)-2,3-dihydroxypropyl phosphate and calcium 2-hydroxy-1-(hydroxymethyl)ethyl phosphate, which may be hydrated. Calcium Glycerophosphate contains NLT 18.6% and NMT 19.4% of calcium (Ca), calculated on the dried basis.
IDENTIFICATION
A.
Analysis: Ignite 0.1 g in a crucible. Take up the residue with 5 mL of nitric acid, heat on a water bath for 1 min, and filter. Mix 1 mL of the filtrate with 2 mL of ammonium molybdate.
Acceptance criteria: A yellow color develops.
B.
Analysis: Dissolve 20 mg of the substance being examined in 5 mL of 5 M acetic acid and add 0.5 mL of potassium ferrocyanide solution (53 mg/mL). The resulting solution remains clear. To the clear solution, add 50 mg of ammonium chloride.
Acceptance criteria: A white crystalline precipitate is produced.
Lead: NMT 4 ppm.
Iron: To pass the test.
Acceptance criteria: NMT 20 ppm.
Limit of Chloride: To pass the test.
Acceptance criteria: NMT 0.04%
Limit of Sulfate: To pass the test.
Acceptance criteria: NMT 0.2%
Limit of Arsenic: To pass the test.
Acceptance criteria: NMT 3 ppm.
Limit of Phosphates:
Acceptance criteria: NMT 0.04%
Citric Acid: To pass the test.
Glycerol and Alcohol-soluble Substances: To pass the test.
Appearance of Solution: To pass the test.
Acidity or Alkalinity: To pass the test.
Loss on Drying : Dry a sample at 150C for 4 h: it loses NMT 12.0% of its weight.
Calcium Glycerophosphate BP Ph Eur
Ph Eur
C3H7CaO6P -- 210.1 -- CAS Number 27214-00-2
Action and use: Excipient.
DEFINITION
Mixture in variable proportions of the calcium salt of 2,3-dihydroxypropyl phosphate and of 2-hydroxy-1-(hydroxymethyl)ethyl phosphate which may be hydrated.
Content: 18.6 per cent to 19.4 per cent of Ca (dried substance).
CHARACTERS
Appearance: White or almost white powder, hygroscopic.
Solubility: Sparingly soluble in water, practically insoluble in ethanol (96 per cent).
IDENTIFICATION
A. Mix 1 g with 1 g of potassium hydrogen sulphate in a test tube fitted with a glass tube.Heat strongly and direct the white vapour towards a piece of filter paper impregnated with a freshly prepared 10 g/l solution of sodium nitroprusside. The filter paper develops a blue colour in contact with piperidine.
B. Ignite 0.1 g in a crucible. Take up the residue with 5 ml of nitric acid and heat on a water-bath for 1 min. Filter. The filtrate gives reaction of phosphates.
C. It gives reaction of calcium.
TESTS
Solution S: Dissolve 1.5 g at room temperature in carbon dioxide-free water prepared from distilled water and dilute to 150 ml with the same solvent.
Appearance of solution: Solution S is not more opalescent than reference suspension.
Acidity or alkalinity: To 100 ml of solution S add 0.1 ml of phph solution. Not more than 1.5 ml of 0.1 M hydrochloric acid or 0.5 ml of 0.1 M sodium hydroxide is required to change the colour of the indicator.
Citric acid: Shake 5.0 g with 20 ml of carbon dioxide-free water and filter. To the filtrate add 0.15 ml of sulphuric acid and filter again. To the filtrate add 5 ml of mercuric sulphate solution and heat to boiling. Add 0.5 ml of a 3.2 g/l solution of potassium permanganate and again heat to boiling. No precipitate is formed.
Glycerol and ethanol (96 per cent)-soluble substances: Maximum 0.5 per cent. Shake 1.000 g with 25 ml of ethanol (96 per cent) for 1 min. Filter. Evaporate the filtrate on a water-bath and dry the residue at 70C for 1 h. The residue weighs a maximum of 5 mg.
Chlorides: Maximum 500 ppm.
Phosphates: Maximum 400 ppm.
Sulphates: Maximum 0.1 per cent, determined on solution S.
Arsenic: Maximum 3 ppm.
Iron: Maximum 50 ppm, determined on 0.20 g.
Heavy metals: Maximum 20 ppm.
Loss on drying: Maximum 12.0 per cent, determined on 1.000 g by drying in an oven at 150C for 4 h. |
