escription OF FOODCHEM Antioxidant Vitamin C 50-81-7
USP2010/BP33/FCCVII/EP7.0
HALAL.Kosher,Iso,Haccp
Appearance white crystals/powder
Shelf life:2 years
25/20 KG/CTN/BAG
Antioxidant Vitamin C 50-81-7 is a white or slightly yellow crystals or powder,a little acid.m.p.190°C-192°C,easily soluble in water,a little soluble in alcohol and uneasily soluble in Ether and chlorofom and other organic solvent.In solid state it is stable in air.Its water solution is easliy mutated when it meets with air.
COA OF Antioxidant Vitamin C 50-81-7
ITEM STANDARD
Appearance White or almost white crystal or crystalline powder
Identification Positive
Melting point 191 °C ~ 192°C
pH (5%, w/v) 2.2 ~ 2.5
pH (2%,w/v) 2.4 ~ 2.8
Specific optical rotation +20.5° ~ +21.5°
Clarity of solution Clear
Heavy metals ≤0.0003%
Assay (as C 6H 8O6, %) 99.0 ~ 100.5
Copper ≤3 mg/kg
Iron ≤2 mg/kg
Mercury ≤1 mg/kg
Arsenic ≤2 mg/kg
Lead ≤2 mg/kg
Oxalic acid ≤0.2%
Loss on drying ≤0.1%
Sulphated ash ≤ 0.1%
Residual solvents (as methanol) ≤ 500 mg/kg
Total plate count (cfu/g) ≤ 1000
Yeasts & molds (cfu/g) ≤ 100
Escherichia. Coli/g Absence
Salmonella/ 25g Absence
Staphylococcus aureus/ 25g Absence
Application OF BP/USP/FCCVII Ascorbic Acid
1.Keep food, fruits and beverage fresh and prevent them from producing unpleasant smell.
2.Prevent formation of nitrous amine from nitrous acid in meat products.
3.Improve dough quality and make baked food expand to its maximum.
4.Compensate the Vitamin C losses of beverage ,fruits and vegetables during processing rocedures.
5.Used as nutritional element in additives,Feed additives.
