| Customization: | Available |
|---|---|
| Color: | White |
| Transport Package: | Bag |
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Vitamin C is usually a sheet-like, sometimes needle shaped monoclinic crystal, odorless, sour in taste, easily soluble in water, and has strong reducibility. Participating in the complex metabolic processes of the body can promote growth and enhance resistance to diseases. It can be used as a nutritional supplement, antioxidant, and wheat flour improver. However, excessive supplementation of vitamin C is not beneficial to health, but rather harmful, so it needs to be used reasonably.
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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 190ºC. 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)
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2.1-2.6
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PH(With 2% water solution)
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2.4-2.8
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Appearance of solution
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Clarity; clear; colour: ≤BY7
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Specific optical rotation
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20.5ºC- 21.5ºC
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Loss on drying
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≤0.4%
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Impurity E
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≤0.2%
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Related substance
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Impurity C: ≤0.15%
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Impurity D: ≤0.15%
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Unpecified impurities:≤0.10%
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Total impurities:≤0.20%
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Copper
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≤5.0ppm
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Iron
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≤2.0ppm
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Arisenic
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≤3.0ppm
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Lead
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≤2.0ppm
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Heavy metals
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≤10ppm
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Sulphated ash
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≤0.1%
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Assay
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99.0% ~ 100.5%
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Najin Import and Export (Shandong) Co., Ltd. is a comprehensive, diversified, and comprehensive company with BDO, PEG, PPG, PTMEG, MDI, TDI, PVA, NMP, and polyether polyols, polyester polyols, and polymer polyols as its main industrial chains. We have a professional sales team that has won recognition and praise from the industry with exquisite technology, sound administrative management, and good teamwork. The product is sold to multiple domestic and foreign enterprises.
We always adhere to the principle of "quality first, customer first, and reputation first", and are committed to providing customers with the best products. We will also continue to build a professional chemical product supply chain with the highest quality service, best products, and maximum efforts.
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