China (Mainland)
vitamin C
1.Prevent formation of nitrous amine from nitrous acid in meat products.
2.Used as a nutritional element in additive.
Specification : White granular powder, melting at about 190degrees centigrade.Gradually darkens on exposure to light and/or heat,reasonably stable in air when dry, but deteriorates in solution in the presence of air. One gram is soluble in about 3ml of water and in about 30ml of alcohol. It is insoluble in chloroform,ether and benzene.
Technology Index:
Items | Specification |
Appearance | White or almost white crystalline powder |
Assay ,% | 99.0 ~ 100.5 |
Identification | Positive reaction |
Color of solution | 0.03 (420nm) Max |
pH Value | 2.1~2.6 |
Heavy metals | 10ppm max |
Copper | 5ppm max |
Arsenic | 3ppm max |
Lead | 2ppm max |
Mercury | 1ppm max |
Iron | 2ppm Max |
Oxalic acid ,% | 0.2max |
Loss on drying,% | 0.4 max |
Sulphated ash(Residue on ignaiton) | 0.1% max |
Specific Rotation | +20.5 o ~ 21.5 o |
Organic volatile impurity | Pass |
