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Ascorbic Acid
1. Description: White crystal or crystalline powder. Odorless. Sour. Flash point 99. Melting point 187 ~ 192. Browned gradually
by light.
2. Application: Nutritional supplements. Antioxidants; color agent. Enhance resistance to infectious diseases. it can be used in beer, fermented flour products, carbonated drinks, tea drinks, juice drinks, milk beverages, milk candy, canned fruit jelly, broth, children's cereal preparations, meat products, baking products and so on.
CERTIFICATE OF ANALYSIS
ASCORBIC ACID
Product Name: Ascorbic Acid | Testing Date: JAN. 8th, 2013 | ||
Specification | Standard | Result | |
Appearance | White or Almost White Crystalline Powder | pass | |
Identification | Positive Reaction | Positive | |
Melting Point | About 190°C | 191°C | |
pH(With 2% Water Solution) | 2.4~2.8 | 2.6 | |
pH(With 5% Water Solution) | 2.1~2.6 | 2.3 | |
Clarity of Solution | Clear | Clear | |
Colour 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° | +21.1° | |
Assay | 99.0% ~ 100.5% | 99.9% | |
Loss on Drying | ≤ 0.4% | 0.03% | |
Residual Solvents | Methanol:NMT 3000 ppm | < 200ppm | |
Related Substances | Impurity C ≤ 0.15% | Complies | |
Impurity D ≤ 0.15% | Complies | ||
Any Other Unspecific Impurities ≤ 0.10% | Complies | ||
Total Impurities ≤ 0.2% | Complies | ||
Conclusion: The Above Product Conforms to BP2012, USP34, EP7.0, FCC7 & 2008 / 84/EC | |||
ascorbic acid food grade