Ascorbic acid, commonly known as vitamin C, stands as one of the most essential micronutrients required for human health. Renowned for its potent antioxidant properties and its role in various metabolic processes. In contemporary nutrition, ascorbic acid remains a cornerstone in dietary recommendations, with its importance underscored in promoting overall health and preventing various ailments. Its versatility in supporting immunity, collagen synthesis, and antioxidant defense mechanisms underscores the importance of a vital nutrient for human health.
Commodity | Vitamin C 100 mesh |
Packing | 20kg/carton | Quality | 100kg |
ITEMS | STANDARD | RESULT |
Character | White or almost white, crystalline powder or colorless crystals | White crystalline powder |
Identification | Corresponds | Corresponds |
Melting Point | 189℃~193℃ | 190℃ |
PH（5%W/V） | 2.1~2.6 | 2.43 |
PH（2%W/V） | 2.4~2.8 | 2.67 |
Specific Optical Rotation | +20.5°~+21.5° | +20.9° |
Appearance of Solution | Solution S is clear and not more intensely. Colored than reference solution BY7 | Up to standard |
Heavy Metals | NMT10ppm | NMT10ppm |
Assay | 99.0~100.5% | 99.3% |
Copper | NMT5ppm | 0.04ppm |
Iron | NMT2ppm | NMT0.01ppm |
Mercury | NMT1ppm | 0.01ppm |
Arsenic | NMT3ppm | NMT3ppm |
Lead | NMT2ppm | 0.01ppm |
Impurity E(Oxalic Acid) | NMT0.2% | NMT0.2% |
Loss on Drying | NMT0.4% | 0.02% |
Sulphated Ash | NMT0.1% | 0.03% |
Impurity C | NMT0. 15% | NMT0.01% |
Impurity D | NMT0.15% | NMT0.01% |
Unspecified Impurities | NMT0.10% | ND |
Total Impurities | NMT0.2% | ND |
Residual Solvent(Methanol) | NMT3000ppm | 111ppm |
Total Bacterial Count | NMT1000CFU/g | Up to standard |
Mold& Yeast | NMT100 CFU/g | Up to standard |
E. Coli | Absence | Up to standard |
Sieve Test | / | 100% pass 100 mesh |
Conclusion | Conform to the standard of BP2014/EP9/USP41/E300/FCC10 |
