| ≥1 piece |
FOOD grade, Feed grade.
White crystal powder
| Analysis contents | Analysis Standard | Analysis Results |
| Appearance | White or white crystalline powder | Pass |
| Identification | Positive Reaction | Positive |
| Melting point | About 190°C | 191°C |
| Clarity of Solution | Clear | Clear |
| Color of Solution | ≤BY7 | <BY7 |
| Copper | ≤5ppm | <5ppm |
| Heavy Metals | ≤10ppm | <10ppm |
| Lead | ≤2ppm | <2ppm |
| Iron | ≤2ppm | <2ppm |
| Cadmium | ≤1ppm | <1ppm |
| Arsenic | ≤3ppm | <3ppm |
| Mercury | ≤0.1ppm | <0.1ppm |
| Zinc | ≤25ppm | <25ppm |
| Oxalic acid | ≤0.2% | <0.2% |
| Sulphate Ash(Residue on Ignition | ≤0.1% | <0.03% |
| Specific optical Rotation | +20.5°-21.5° | +20.9° |
| Assay | 99.0%-100.5% | 100.0% |
| Loss on Drying | ≤0.4% | 0.05% |
| Residual Solvents | Methanol:NMT 3000ppm | <200ppm |
| CAS No.: 50-81-7 | Other Names: vitamin C | MF: C6H8O6 |
| EINECS No.: 200-066-2 | Place of Origin: Taiwan | Type: Acidity Regulators |
| Brand Name: NCPC |