Specification of Ascorbic Acid Antioxidant Powder Preservative For Food (Vitamin C)
Item | Specification |
Characteristics | White or almost White crystals Crystalline Powder |
Identification | Positive Reaction |
Melting Point | About 190℃ |
PH(with 5% water solution) | 2.1-2.6 |
Clarity Of Solution | Clear |
Colour Of Solution | ≤BY7 |
Copper | ≤5ppm |
Heavy Metals | ≤10ppm |
Mercury | ≤0.1mg/kg |
Lead | ≤2mg/kg |
Arsenic | ≤3ppm |
Oxalic Acid | ≤0.2% |
Iron | ≤2ppm |
Cadmium(Cd) | <1mg/kg |
Loss on Drying | ≤0.4% |
Sulphate Ash(Residue On Ignition) | ≤0.1% |
Specific Optical Rotation | +20.5°–+21.5° |
Residual Solvents | Pass |
Assay | 99.0%-100.5% |
PACKING: 25KG NET / CARTON
STORAGE AND TRANSPORT:IN DRY AND COOL NORMAL TEMPERATURE
SHELF LIFE: 2 YEARS
