Food Antioxidant 50 81 7 Ascorbic Acid Powder
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- Supplier: Great Vision International Inc. [Jiangsu China]Great
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Product Overview
Description
Food Antioxidant 50-81-7 Ascorbic Acid Powder
Product Description
Product Information
Vitamin C is a white monoclinic crystal or crystalline powder with melting point on 190 °C-192 °C, no smell, sour, yellowish color after long time standing. The product is easily soluble in water, slightly soluble in ethanol, insoluble in ether, chloroform.
Specification
Items | Standards |
Assay | 99.0%-100.5% |
Meiting point | 187℃~192℃ |
Specific Optical Rotation | +20.5°~+21.5° |
Clarity and colour of solution | Clear less than BY 7 |
Loss on drying | 0.4% Max |
pH(2% solution) | 2.4~2.8 |
pH(5% solution) | 2.1~2.6 |
Heavy Metals(as Pb) | 10 ppm Max |
Iron | 2 ppm Max |
Mercury | 0.1 ppm Max |
Lead | 2 ppm Max |
Arsenic | 3 ppm Max |
Copper | 5 ppm Max |
Oxalic Acid | 0.2% Max |
Sulphated Ash | 0.1% Max |
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