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Specifications
Vitamin C/ascorbic acid:
1.USP/BP/EP/FCC
2.Feed grade/food grade/medicine grade
3.Competitive price/high quality/quick delive
Vitamin C
Product introduction:
Vitamin C: White crystal or crystalline powder. Odorless but tastes sour. Metling point 190°C-192°C.
Color turns light yellow after long time storage. It is easily soluble in water, a bit soluble in
ethanol, insoluble in ether and chloroform. Water solution appears acidic.
Functions and uses:
Vitamin C participates in a variety of metabolic process, reduce capillary fragility and enhances
body resistence. Widely used in food,beverages, farming and feed additives.
Quality standard:
| ITEMS | STANDARD |
| Appearance | White crystal or crystalline powder |
| Identification | Positive |
| Clarity of solution | Clear |
| Assay |
≥ 99.0% |
| Loss on drying |
≤0.1% |
| Residue on ignition |
≤0.1% |
| Specific rotation | +20.5° ~ +21.5° |
| pH (2%,w/v) | 2.4 ~ 2.8 |
| pH (5%, w/v) | 2.2 ~ 2.5 |
| Melting range | 190°C ~ 192°C |
| Heavy metals | ≤0.0003% |
| Iron | ≤2mg/kg |
| Copper | ≤3 mg/kg |
| Arsenic |
≤2 mg/kg |