Anhydrous Citric Acid USP 25KG Go Back

CASR

: 77-92-9

Molecular Formula

: C6H8O7

Molecular Weight

: 192.13
Specifications  
Description: Colorless, translucent crystals or white, granular to fine crystalline powder. Melts at about 153°, with decomposition.
Solubility: Very soluble in water, freely soluble in alcohol, very slightly soluble in ether.
Identification A (By IR): IR spectra of the sample should be concomitant with IR spectra of the standard.
Assay (Anhydrous basis): 99.5%-100.5%
Residue on ignition: NMT 0.1%
Sulphate (SO4): NMT 0.015%
Limit of oxalic acid: NMT 0.036%
Clarity of solution: The sample solution should show the same clarity as that of water or its opalescence should not be more pronounce than standard suspension.
Colour of solution: The sample solution should not more intensely colored than standard solutions
Readily carbonizable substances: The color of the acid should not be darker than that matching fluid.
Water: NMT 1.0%
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