Ascorbic Acid Fine Powder (325mesh)

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Product name:    Ascorbic acid 325 mesh
Expiry Date: One years
Inspection Standard: BP2016/USP39
TestsStandardsResults
CharacteristicsWhite or almost white crystalline powder or colourless crystalsPass
IdentificationPositive reactionPass
Melting pointAbout 190℃190℃
Specific rotation+20.5°~+21.5°+21.1°
Ph2.1~2.62.4
Residue on ignition≤0.1%0.04%
Assay99.0%~100.5%99.7%
Heavy metals≤10ppm<10ppm
Clarity of solutionClearPass
Color of solution≤BY7<BY7
Impurity E≤0.2%<0.2%
Copper≤5ppm<5ppm
Iron≤2ppm<2ppm
Particle sizeNot less than 80% pass through 325 mesh90.89%
Conclusion : The above product conforms with BP2016/USP39 standard