Description:
It is a white or slightly yellow crystals or powder, a little acid. m. p. 190C-192ºC, easily soluble in water, a little soluble in alcohol and uneasily soluble in Ether and chloroform and other organic solvent In solid state it is stable in air. Its water solution is easily mutated when it meets with air.
Vitamin C
Introduction:
Vitamin C, also known as ascorbic acid and l-ascorbic acid, is a vitamin found in various foods and sold as a dietary supplement. It is used to prevent and treat scurvy. Vitamin C is an essential nutrient involved in the repair of tissue and the enzymatic production of certain neurotransmitters. It is required for the functioning of several enzymes and is important for immune system function. It also functions as an antioxidant.
Identification
Name |
L(+)-Ascorbic acid |
Molecular Formula |
C6H8O6 |
Molecular Weight |
176.12 |
CAS NO. |
50-81-7 |
EINECS |
200-066-2 |
Melting point |
190-192 ºC |
Alpha |
20.5 º (c=10,H2O) |
Water solubility |
333 g/L (20 ºC) |
Description:
It is a white or slightly yellow crystals or powder, a little acid. m. p. 190C-192ºC, easily soluble in water, a little soluble in alcohol and uneasily soluble in Ether and chloroform and other organic solvent In solid state it is stable in air. Its water solution is easily mutated when it meets with air.
Application:
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 nutrition-al supplements, supplementary Vc in food processing, and also is good antioxidants in the 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 |
Index |
Appearance |
White or slightly yellow crystals or powder |
Assay |
99% |
Residue on ignition |
≤0.1% |
Specific optical rotation |
+2.05º~+21.5º |
Moisture |
≤10% |
Ash |
≤10% |
Heavy metals |
≤10ppm |
Lead |
≤2.0mg/kg |
Arsenic |
≤3.0ppm |
Cadmium |
≤2.0mg/kg |
Mercury |
≤0.1ppm |
Chromium |
≤2.0ppm |
Iron |
≤2.0 mg/kg |
Copper |
≤5.0ppm |
Total plate count |
≤1000cfu/g |
Yeast & mold |
≤100cfu/g |
E.Coli |
Negative |
Salmonelia |
Negative |
Staphylococcus |
Negative |
Storage: It must be stored in the warehouse of ventilation, dry and shady and cool.