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1000 Kilogram |
FOB Price: USD 3.6000 |
VITAMIN C 50-81-7 ASCORBIC ACID 99%
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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
Specification
Items |
Specifications |
Test result |
Assay |
99%~100.5% |
99.87% |
Melting Point |
187°C~192°C |
191.0°C |
Specific Optical Rotation |
+20.5°~+21.5° |
+21.5° |
Clarity and colour of solution |
Clear≤BY 7 |
Pass |
Loss on drying |
0.4% Max |
0.1% Max |
pH(5% solution) |
2.1~2.6 |
2.41 |
Heavy Metals |
10 ppm Max |
10 ppm Max |
Iron |
2 ppm Max |
2 ppm Max |
Mercury |
0.1 ppm Max |
0.1 ppm Max |
Lead |
2 ppm Max |
2 ppm Max |
Arsenic |
3 ppm Max |
3 ppm Max |
Copper |
5 ppm Max |
5 ppm Max |
Oxalic Acid |
0.2% Max |
0.2% Max |
Sulphated Ash |
0.1% Max |
0.1% Max |
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