China High Quality 3-Chloro-1-(4-Nitrophenyl)-5,6-Dihydropyridin-2(1h)-One Factory - Ascorbic Acid | 50-81-7 – COLORKEM
China High Quality 3-Chloro-1-(4-Nitrophenyl)-5,6-Dihydropyridin-2(1h)-One Factory - Ascorbic Acid | 50-81-7 – COLORKEM Detail:
Products Description
Ascorbic Acid is a white or slightly yellow crystals or powder, a little acid.m.p.190℃-192℃,easily soluble in water, a little soluble in alcohol and uneasily soluble in ether and chloroform and another organic solvent. In solid-state it is stable in air. Its water solution is easily mutated when it meets with air.
Usage: In the pharmaceutical industry, can be used to treat scurvy and various acute and chronic infectious diseases, are applicable to the lack of VC.
In the food industry, it can both use as nutritional supplements, supplementary VC in food processing, and also is good Antioxidants in food preservation, widely used in meat products, fermented flour products, beer, tea drinks, fruit juice, canned fruit, canned meat and so on;also commonly used in cosmetics,feed additives and other industrial areas.
Name | Ascorbic Acid |
Appearance | Colourless or White crystalline Powder |
Chemical Formula | C6H12O6 |
Standard | USP, FCC, BP, EP, JP, etc. |
Grade | Food, Pharma, Reagent, Electronic |
Brand | Kinbo |
Used | Food Additive |
Function
In the food industry, it can both use as nutrition-al supplements, supplementary VC in food processing, and also is good Antioxidants in food preservation, widely used in meat products,, fermented flour products, beer, tea drinks, fruit juice, canned fruit, canned meat and so on; also commonly used in cosmetics, feed additives and other industrial areas.
Specification
ITEM | STANDARD |
Appearance | White or almost white crystal or crystalline powder |
Identification | Positive |
Melting point | 191 ℃ ~ 192℃ |
pH (5%, w/v) | 2.2 ~ 2.5 |
pH (2%,w/v) | 2.4 ~ 2.8 |
Specific optical rotation | +20.5° ~ +21.5° |
Clarity of solution | Clear |
Heavy metals | ≤0.0003% |
Assay (as C 6H 8O6, %) | 99.0 ~ 100.5 |
Copper | ≤3 mg/kg |
Iron | ≤2 mg/kg |
Mercury | ≤1 mg/kg |
Arsenic | ≤2 mg/kg |
Lead | ≤2 mg/kg |
Oxalic acid | ≤0.2% |
Loss on drying | ≤0.1% |
Sulphated ash | ≤0.1% |
Residual solvents (as methanol) | ≤500 mg/kg |
Total plate count (cfu/g) | ≤ 1000 |
Yeasts & molds (cfu/g) | ≤100 |
Escherichia. Coli/g | Absence |
Salmonella/ 25g | Absence |
Staphylococcus aureus/ 25g | Absence |
Product detail pictures:
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We constantly think and practice corresponding to the change of circumstance, and grow up. We aim at the achievement of a richer mind and body along with the living for China High Quality 3-Chloro-1-(4-Nitrophenyl)-5,6-Dihydropyridin-2(1h)-One Factory - Ascorbic Acid | 50-81-7 – COLORKEM , The product will supply to all over the world, such as: Finland, Iran, Israel, Due to good quality and reasonable prices, our products have been exported to more than 10 countries and regions. We are looking forward to cooperating with all customers from at home and abroad. Moreover, customer satisfaction is our eternal pursuit.
By Phoenix from Atlanta - 2017.11.29 11:09
The manufacturer gave us a big discount under the premise of ensuring the quality of products, thank you very much, we will select this company again.
By Beatrice from Slovak Republic - 2018.07.26 16:51