Vitamin C is a white monoclinic crystal or crystalline powder with melting point on 190 degree -192 degree, no smell, sour, yellowish color after long time standing. The product is easily soluble in water, slightly soluble in ethanol, insoluble in ether, chloroform. The aqueous solution is acidic. 5% (W / V) aqueous solution pH2.1-2.6 (W / V), the rotation of aqueous solution is +20.5 ° ~ +21.5.
Nutritional supplements. Antioxidants; Color agent. Enhance resistance to infectious diseases. Can be used for beer, fermented flour products, carbonated drinks, tea drinks, juice drinks, milk beverages, milk candy, canned fruit jelly, broth, children's cereal preparations, meat products, baking products.
| Characteristics |
White or almost White crystals Crystalline Powder |
| Identification |
Positive Reaction |
| Melting Point |
About 190 |
| PH |
2.4-2.8 |
| Clarity Of Solution |
Clear |
| Colour Of Solution |
≤BY7 |
| Loss on drying |
≤0.4% |
| Copper |
≤5ppm |
| Heavy Metals |
≤10ppm |
| Iron |
≤2ppm |
| Mercury |
≤1ppm |
| Lead |
≤2ppm |
| Arsenic |
≤3ppm |
| Oxalic Acid |
≤0.2% |
| Sulphate Ash(Residue On Ignition) |
≤0.1% |
| Specific Optical Rotation |
+20.5°–+21.5° |
| Organic Volatile Impurities |
Pass |
| Assay |
99.0%-100.5% |