ascorbic acid

 Ascorbic Acid

Chemical name:

Vitamin C (also known as ascorbic acid)

English name:

L(+)-Ascorbic acid

CAS No.:

50-81-7

Molecular formula:

C6H8O6

Structure:

Molecular weight:

176.12

Appearance and properties:

White crystal. 易Soluble in water, slightly soluble in ethanol, insoluble in ether, chloroform, benzene, petroleum ether, oils and fats. Aqueous solution is acidic. Can rapidly oxidized to dehydroascorbate in the air. Odorless, sour like citric acid. Strong reducing agent. After long-term storage, it will gradient turn into different degrees of light yellow color.

Assay:

≥99%

Melting point:

190-192℃

Specific rotation:

+20.5°～+21.5°

Residue on ignition:

≤0.1%

Heavy metal:

≤0.001%

Arsenic:

≤0.0003%

Use:

Nutritional supplement; antioxidant; color fixative. Prevention of scurvy, alveolar pyorrhea, anemia, loss of appetite, etc. Can enhance resistance to infectious diseases.

Specification:

USP/BP/CP

Packing specification:

25KG/barrel, bag

Storage and transportation:

Stored in a cool, ventilated and dry warehouse. Avoid heat or sun exposure. Mixed storage with hazardous materials is strictly prohibited. Prevent from damp.