Specification :

CAS NO.113170-55-1
Structural Formula: C6H8O6
BP2008/ USP31/ FCCVI/ E300
Items Specifications
Characteristics White or almost white, crystalline powder
Identification Positive reaction
Melting Point About 190
PH 2.4-2.8
Clarity of solution Clear
Color of solution dBY7
Loss of drying 0.4% Max
Arsenic d3ppm
Lead d2ppm
Copper d5ppm
Heavy metals d10ppm
Iron d2ppm
Mercury d1ppm
Oxalic Acid d0.2%
Sulphate ash ( residue on ignition) d0.1%
Specific optical rotation + 20.5° - + 21.5°
Organic Volatile Impurities Pass
Assay 99.0% -100.5%