China CAS No: 50-81-7 Nutritional Supplement Vitamin C

Product NameAscorbic Acid Analysis standard BP2015/USP38/FCC9/E300 Characteristics White or almost white crystals crystalline powder Identification Positive reaction Melting point about 190ºC pH 2.1~2.6 Clarity of solution Clear Colour of solution ≤BY7 Copper ≤5ppm Heavy metals ≤10ppm Mercury <0.1mg/kg Lead <2mg/kg Arsenic ≤3ppm Cadmium(Cd) <1mg/kg Oxalic acid ≤0.2% Iron ≤2ppm Loss of drying ≤0.4% Sulphate ash(Residue on ignition) ≤0.1% Specific optical rotation 25ºC +20.5°~+21.5° Organic volatile impurities Pass Assay 99.0%~100.5%

Food grade: As antioxidant and food nutrition enhancer, Vitamin C is used in flour product, beer, candy, jam, can, drink, dairy products ;Medicine grade: Vitamin medicines, prevent scurvy, and a various of drugs for acute or chronic infectious diseases, purpura, dental caries, gingival abscess, anemia ;Cosmetic material: Vitamin C can promote collagen formation, its antioxidation, can restrain pigment spots