Vitamins
CAS No.50-81-7
Package： Net 25kg /carton
Shelf Life： 3 years
Vitamin C is a colorless crystal, odourless, acidic taste. Soluble in water and ethanol. Stable in dry air, and its solution is not stable. As well as, Vitamin C takes part in many metabolism procedures in the human body, helps decrease brittleness of blood capillaries and increase body.
Keep in dry and cool place below 30℃，away from sunlight. After opening, it should be stored in a separate package.
| Assay | 99.0%-100.5% |
|---|---|
| Appearance | White or almost White crystals Crystalline Powder |
| Solubity | Easily soluble in water |
| Identification | Positive Reaction |
| Melting Point | About 190℃ |
| Copper | ≤5ppm |
| Heavy Metals | ≤10ppm |
| Mercury | ≤0.1mg/kg |
| Lead | ≤2mg/kg |
| Arsenic | ≤3ppm |
| Oxalic Acid | ≤0.2% |
| Iron | ≤2ppm |
| Cadmium (Cd) | <1mg/kg |
| Impurity E | ≤0.2% |
| Loss on Drying | ≤0.4% |
| Sulphate Ash (Residue On Ignition) | ≤0.1% |
| Specific Optical Rotation | +20.5°–+21.5° |
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