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High quality CAS 50-81-7 Vitamin C
1.Product Name: Ascorbic acid, Vitamin C
2.CAS NO: 50-81-7
3.Purity: 99%-100.5%
4.Appearance: White or almost White Crystalline Powder
Vitamin C is a colorless crystal, odourless, acidic taste. Soluble in water and ethanol. Stable in dry air , and its solution is not stable. As well as, vitamin C takes part in many metabolism procedures in the human body, helps decrease brittleness of blood capillaries and increase body resistance
| Analysis contents | Analysis standard BP2010 | Analysis results |
| Appearance | White crystalline powder | White crystalline powder |
| Identification | Positive | Positive |
| Clarity of solution | Clear | Clear |
| Color of solution | ≤BY7 | < BY7 |
| Assay | 99.0-100.0% | 99.9% |
| Loss on Drying | ≤0.4% | 0.03% |
| Residue on ignition | ≤0.1% | 0.03% |
| Sulphate Ash | ≤0.1% | 0.03% |
| Specific rotation | +20.5°~ +21.5° | +20.96° |
| PH(with 2% water solution) | 2.4-2.8 | 2.55 |
| PH(with 5% water solution) | 2.1-2.6 | 2.30 |
| Melting range | About 190°C | 191°C |
| Heavy Metals | ≤3ppm | <3ppm |
| Iron | ≤2ppm | <2ppm |
| Copper | ≤5ppm | <5ppm |
| Oxalic Acid | ≤0.2% | <0.2% |
| Arsenic | ≤1ppm | <1ppm |
| Lead | ≤3ppm | <3ppm |
| Cadmium | ≤1ppm | <1ppm |
| Organic volatile impurities | Meets the requirements | conform |
| Related Substance | Impurity C ≤0.15% Impurity D ≤0.10% Any other Unspecific Impurities Impurity≤0.10% Total Impurity ≤0.2% | Complies |
| Total Plate Count | ≤1,000cfu/g | <1, 000cfu/g |
Vitamin C is widely used in many fields such as food , beverage, breeding and forage additives. Its main functions reflected in following 5 aspects:
1)Keep food, fruits and beverage fresh and prevent them from producing unpleasant smell.
2)Prevent formation of nitrous amine from nitrous acid in meat products.
3)Improve dough quality and make baked food expand to its maximum.
4)Used as nutritional element in additives,Feed additives.
