Vitamin C (Ascorbic Acid) BP2007 / USP30
Detailed introduction to Vitamin C:
Vitamin C (Ascorbic Acid)
Specification :
| ITEM | STANDARD |
Description | White or almost white crystals or crystalline powder |
Identification | Positive Reaction |
Melting Point | 190-192 |
PH | 2.1-2.6 |
Clarity of solution | Clear |
Colour of solution | ≤BY7 |
Mercury | ≤1ppm |
Zinc | ≤25ppm |
Arsenic | ≤3ppm |
Lead | ≤2ppm |
Copper | ≤5ppm |
Iron | ≤2ppm |
Heavy metals | ≤10ppm |
Oxalic Acid | ≤0.2% |
Loss on drying | ≤0.1% |
Sulphate ash (Residue on ignition) | ≤0.1% |
Specific rotation | +20.5° +21.5° |
Organic Volatile Impurities | Pass |
Assay | 99.0-100.5% |