Citric Acid Monohydrate USP/Ph.Eur 500GM Go Back

CASR

: 5949-29-1

Molecular Formula

: C6H8O7.H2O

Molecular Weight

: 210.14
Specifications  
Description: Colourless, translucent crystals or white granular to fine crystalline powder.Efflorescent in dry air.
Solubility: Very soluble in water, freely soluble in alcohol, very slightly soluble in ether.
Identification by Chemical test: The solution is strongly acidic.
Identification (By IR): To Comply the test
Identification by Chemical test: A red colour develops.
Identification by Chemical test: A white precipitate is formed.
Identification (By Water): To Comply the test
Appearance of solution: The solution is clear and colourless or not more intensely coloured than reference solution Y7, BY7 or GY7.
Clarity of solution: The sample solution shows the same clarity as that of water or its opalescence is not more pronounced that standard suspension A.
Colour of solution: The sample solution is not more intensely colored than water or standard solutions A, B, and C .
Assay (Anhydrous basis): 99.5% - 100.5%
Residue on ignition: Not more than 0.1%
Sulphate(SO4): 0.015% max (150 ppm max)
Limit of oxalic acid: 0.036% max, (360 ppm max.)
Readily carbonizable substances: The color of the acid is not darker than that of a similar volume of matching fluid K .
Water: 7.5% to 9.0%
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