General information
1) Hs code: 2936270000
2) CAS No: 50-81-7
3) Grade: Food grade
4) Formula: C6h8o6
5) Molecular weight: 176.12

Properties
1) Appearance: White crystalline powder
2) Odor: Odorless, citric acid sour
3) Solubility: Soluble in water, slightly soluble in ethanol, insoluble in ether, chloroform, benzene, petroleum ether, oils and fats
4) Melting point: 190c-192c

Specifications(bp2002/usp26)
1) Assay: 99.0%-100.5%
2) pH: 2.1-2.6
3) Clarity of solution: Clear
4) Colour of solution: By7 max
5) Cu: 5ppm max
6) Heavy metals: 10ppm max
7) Iron: 2ppm max
8) Oxalic acid: 0.2% max
9) Residue on ignition: 0.1% max
10) Specific optical rotation: +20.5c~+21.5c.