Vitamin C (Ascorbic acid )
is an essential vitamin. Ascorbic acid is naturally sour and is commonly used in candy to add a sour taste.Ascorbic Acid is a naturally occurring organic compound with antioxidant properties. It is a white solid, but impure samples can appear yellowish. It dissolves well in water to give mildly acidic solutions. Because it is derived from glucose, many animals are able to produce it, but humans require it as part of their nutrition. Other vertebrates which lack the ability to produce ascorbic acid include other primates, guinea pigs, teleost fishes, bats, and some birds, all of which require it as a dietary micronutrient (that is, in vitamin form).
There exists a D-ascorbic acid, which does not occur in nature. It may be synthesized artificially. It has identical antioxidant properties to L-ascorbic acid yet has far less vitamin C activity (although not quite zero).
Product Name | Ascorbic acid |
CAS No. | 50-81-7 |
Molecular Formula | C6H8O6 |
Molecular Weight | 176.12 |
Quality Standard | BP2014/USP39/EP7/E300/FCC7 |
Packing | 25 kg/carton |
Shelf Life | 3 Years |
Items | Specification |
Assay | 99.0%-100.5% |
Characteristics | White or almost white,Crystalline powder or colourless crystals |
Identification | Corresponds |
Melting Point | 189°C ~ 193°C |
PH (5%,W/V) | 2.1-2.6 |
PH (2%,W/V) | 2.4-2.8 |
Specific Optical Rotation | +20.5° ~ +21.5° |
Apperance of Solution | Clarity: Clear; Colour: ≤BY7 |
Heavy Metals | ≤10ppm |
Copper | ≤5 ppm |
Iron | ≤2 ppm |
Mercury | <1 ppm |
Arsenic | ≤3 ppm |
Cadmium | <1 ppm |
Lead | <2 ppm |
Loss of Drying | ≤0.4% |
Sulphate Ash | ≤0.1% |
Oxalic Acid (Impurity E) | ≤0.2% |
Related substances |
Impurity C: ≤0.15%
Impurity D: ≤0.15% Unspecified impurities: ≤0.10% Total impurities: ≤0.20% |
Residual solvents | Meets the requirements |
Goods weight
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Packing
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Shipping method
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Lead-time
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1-50kg
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Below 5kg Use Foil bag;5-25kg use two layer PP bag,then into master carton or cardboard drum
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International express
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1~3 days after your payment |
100-200kg
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25kg/drum,use two layer PP bag,then into cardboard drum
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Air shipping
Sea Shipping |
3~5 days after your payment |
Over 500kg
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25kg/drum,use two layer PP bag,then into cardboard drum
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Sea shipping
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5~10 days after your payment |
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