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Vitamin C
| Offer Type: |  |
|---|---|
| Offer Group: | Vitamin C Series |
| Offer Post Time: | 2009-11-08 |
| Expiration Date: | 2010-05-09 |
| Details: |
ASCORBIC ACID (VITAMIN C)
FORMULA: C6H8O6 Molecular Weight: 176.13 CAS No.: 50-81-7 E-Code No.: E-300 EINECS code: 2000662 Appearance: White granular powder, melting at about 190degrees centigrade. Gradually darkens on exposure to light and/or heat, reasonably stable in air when dry, but deteriorates in solution in the presence of air. One gram is soluble in about 3ml of water and in about 30ml of alcohol. It is insoluble in chloroform, in ether, and in benzene. SPECIFICATION (BP2004/USP28/FCCV) Appearance: White to slightly yellowish crystalline power Identification Positive Reaction Clarity of Solution (5% solution) Clear Color of Solution BY7 Assay 99.0% ~ 100.5% Particle size (%) mesh No. 20 100 Loss on Drying < 0.2% Residue on Ignition Max 0.1% Specific Rotation + 20.5 ~ +21.5 degrees pH (5% in water) 2.2 ~ 2.5 Heavy Metals (as Pb) Max. 10ppm Lead Max. 5ppm Zinc Max. 25ppm Copper Max. 5ppm Iron Max. 2ppm Arsenic Max. 3ppm Oxalic Acid Max. 0.2% Shelf Life 2 Years PACKING Two layers of polyethylene liner in net 25kg carton or fiber drum TOXICOLOGICAL INFORMATION Threshold limit value: TWA: None established STEL: None established Toxicity: Industrial exposure, no advise clinical findings have been reported at dose levels of 9000mg/day or less, orally in man at a level of 50-80g/day for a week to 10 days, there was some gastroenteritis and anal irritation, amounts of 1g/day may cause diarrhea, 4-12g/day can cause formation of urate and cystine stones in the urinary bladder. HANDLING PRECAUTION Store within tightly-sealed containers in dark, moisture-free place at temperatures below 25degrees centigrade. After opening container, avoid exposing it heat and humidity. IN CASE OF CONTACT Eye contact: Wash surface with water thoroughly Skin contact: Rinse areas with water thoroughly Ingestion: Drink large quantity of water to combat the dehydrating effect. APPLICATION AND USAGES Vitamin C takes part in many metabolism procedures in the human body, helps decrease brittleness of blood capillaries and increase body resistance. In addition to prevention of scurvy, it is often used as a supplement for treatment of acute or chronic infection diseases or purpura. Vitamin C is widely used in many fields such as food, beverage, breeding and forage additives. Its main functions are reflected in following six aspects: 1. Keep food, fruits and beverage fresh and prevent them from producing unpleasant smell. 2. Prevent formation of nitrous amine from nitrous acid in meat products. 3. Improve dough quality and make baked food expand to its maximum. 4. Compensate the Vitamin C losses of beverage, fruits and vegetables during processing procedures. 5. Used as a nutritional element in additive 6. Feed additives |
