Calcium Glycerophosphate
Molecular Formula:C3H7CaO6P Molecular Weight:210.1g/mol CAS NO.:27214-00-2
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Specification
Character
It occurs as a white or almost white powder, hygroscopic.
IdentificationTest(A)
Test(B)
Test(C)
(a)Specified Test. The filter paper develops a blue color in contact with piperidine R.(b)Specified Test. The filtrate gives reaction of phosphates.
(c) It gives reaction of calcium
Solubility
Sparingly soluble in water, practically insoluble in ethanol (96%)
Appearance of solution
Solution is not more opalescent than reference suspension III.
Acidity or alkalinity
To 100 mL of solution S add 0.1 mL of phenolphthalein solution R. Not more than 1.5 mL of0.1 M hydrochloric acid or 0.5 mL of 0.1 M sodium hydroxide is required to change the color of the indicator.
Citric acid
Specified Test. No precipitate is formed.
Glycerol and ethanol (96%) soluble substances
Not more than 0.5%
Chlorides
Not more than 500 ppm
Phosphates
Not more than 400 ppm
Sulfate
Not more than 0.1%
Arsenic
Not more than 3 ppm
Iron
Not more than 50 ppm
Loss on drying
Not more than 12.0%
Assay
Not less than 18.6% and not more than 19.4 % of Ca (dried substance).