| CAS No.: | 50-81-7 |
|---|---|
| Formula: | C6h8o6 |
| EINECS: | 200-066-2 |
|
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Ascorbic Acid is a white or slightly yellow crystals or powder,a little acid.m.p.190ºC-192ºC,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.
Chemical name: Ascorbic Acid
Alias: Vitamin C
CAS.: 50-81-7
EINECS No.:200-066-2
Chemical Formula:C6H8O6
Appearance: White or almost White crystals Crystalline Powder
Shelf Life: 24 Months
| ITEM | STANDARD |
| Appearance | White or almost white crystal or crystalline powder |
| Identification | Positive |
| Melting point | 191 ºC ~ 192ºC |
| 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 |
| Absence |
Vitamin C is widely used in many fields such as food , beverage, breeding and forage additives.
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.
1.Food Grade: As antioxidant and food nutrition enhancer, Vitamin C is used in flour product, beer, candy, jam, can, drink, dairy products .
2.Medicine Grade: Vitamin medicines, prevent scurvy, and a various of drugs for acute or chronic infectious diseases, purpura, dental caries, gingival abscess, anemia .
3.Cosmetic Material: Vitamin C can promote collagen formation, its antioxidation, can restrain pigment spots.
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