good Chinese Ascorbic acid(Vitamin C) plain BP/USP/EP/FCC
| Categories | Food additives |
|---|---|
| Brand | TNN Chemical Raw Materials Manufacturer |
| FOB port | Tian jin，Qingdao |
| Terms of Payment | T/T |
| Update Time | Nov 23,2024 |
Detail Information
Product Parameter
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Item
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Standard
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Appearance
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White or almost white, crystalline powder or colourless crystals
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Melting point
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About 190℃. with decomposition
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Infrared absorption spectrum
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Infrared absorption spectrum accord with the referance spectrum of ascorbic acid CRS
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PH(With 5% water solution) | 2.1~2.6 | |
PH(With 2% water solution) | 2.4~2.8 | |
Appearance of solution | Clarity; clear; colour: ≤BY7 | |
Loss on drying | ≤0.4% | |
Impurity E | ≤0.2% | |
Related substance | Impurity C: ≤0.15% | |
Impurity D: ≤0.15% | ||
Unpecified impurities:≤0.10% | ||
Total impurities:≤0.20% | ||
Copper ≤5.0ppm | Iron ≤2.0ppm | Arisenic ≤3.0ppm |
Lead ≤2.0ppm | Mercury ≤1.0ppm | Cadmium ≤1.0ppm |
Heavy metals ≤10ppm | Sulphated ash ≤0.1% | Assay：99.0% ~ 100.5% |
CAS No.:50-81-7
Other Names: Ascorbic acid
MF:C6H8O6
EINECS No.:200-066-2
Place of Origin: China (Mainland)
Grade Standard: Cosmetic Grade, Feed Grade, Food
Grade, Medicine Grade
Usage: Animal Pharmaceuticals
Brand Name: TNN
Model Number: BP USP EP
Purity:99% min
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