Vitamin C L(+)-Ascorbic Acid
Vitamin C L(+)-Ascorbic Acid is a white to nearly white crystalline raw material with excellent water solubility, widely used in food, nutritional, pharmaceutical, cosmetic, and specialty formulations.
Product Description
General Parameters
Product Characteristics
Specification Data
| Specification | USP33, BP2011, EP7.0, FCC7&2008/84/EC Grade |
|---|---|
| Identification | Corresponds |
| Melting point | 189 ~ 193°C |
| pH (5%, W/V) | 2.1 ~ 2.6 |
| pH (2%, W/V) | 2.4 ~ 2.8 |
| Specific optical rotation | +20.5 ~ +21.5 |
| Clarity and color of solution | Solution S is clear and not more intensely colored than reference solution BY |
| Assay | 99.0 ~ 100.5% |
| Copper | 5ppm max |
| Iron | 2ppm max |
| Mercury | 1ppm max |
| Arsenic | 3ppm max |
| Lead | 2ppm max |
| Impurity E (Oxalic acid) | 0.2% max |
| Loss on drying | 0.4% max |
| Sulphated ash (Residue on ignition) | 0.1% max |
| Related substance - Impurity C | 0.15% max |
| Related substance - Impurity D | 0.15% max |
| Related substance - Unspecified impurities | 0.10% max |
| Residual solvents - Methanol | 3000ppm max |
Typical Uses
Handling Guidance
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