PRODUCT

Ascorbic acid-VC
Cas No.: 50-81-7
Chemical Formula: C6h8o6

Overview

PRODUCT DESCRIPTION

Ascorbic Acid is a naturally occurring organic compound with antioxidant properties. It is a white solid, but impure samples can appear yellowish. It dissolves well in water to give mildly acidic solutions. Because it is derived from glucose, many animals are able to produce it, but humans require it as part of their nutrition. Other vertebrates which lack the ability to produce ascorbic acid include other primates, guinea pigs, teleost fishes, bats, and some birds, all of which require it as a dietary micronutrient (that is, in vitamin form).
There exists a D-ascorbic acid, which does not occur in nature. It may be synthesized artificially. It has identical antioxidant properties to L-ascorbic acid yet has far less vitamin C activity (although not quite zero).

 

PRODUCT FEATURES

Ascorbic Acid  is a white or slightly yellow crystals or powder,a little acid.m.p.190ºC-192ºC,easily soluble in water,a little soluble in alcohol and uneasily soluble in Ether and chlorofom and other organic solvent.In solid state it is stable in air.Its water solution is easliy mutated when it meets with air.

 

PRODUCT USAGE

Vitamin C is widely used in many fields such as food , beverage, breeding and forage additives. 
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 rocedures. 
5.Used as nutritional element in additives,Feed additives.

1.Food Grade: As antioxidant and food nutrition enhancer, Vitamin C is used in flour product, beer, candy, jam, can, drink, dairy products .
2.Medicine Grade: Vitamin medicines, prevent scurvy, and a various of drugs for acute or chronic infectious diseases, purpura, dental caries, gingival abscess, anemia .
3.Cosmetic Material: Vitamin C can promote collagen formation, its antioxidation, can restrain pigment spots.


ItemsStandard
CharacteristicsWhite   or almost White crystals Crystalline Powder
IdentificationPositive   Reaction
Melting pointAbout   190ºC
PH(5% water in solution)2.1-2.6
PH(2% water in solution)2.4-2.8
Clarity of Solution Clear
Colour of Solution≤   BY7
Copper≤5ppm
Heavy Metals≤10ppm
Mer≤0.1mg/kg
Lead ≤2   mg/kg
Iron≤2ppm
Arsenic≤3ppm
Cad(Cd)<1mg/kg
Oxalic Acid≤0.2%
Impurity E≤0.2%
Loss on Drying≤0.4%
Sulphate Ash(Residue On Ignition)≤0.1%
Specific Optical Rotation+20.5   °~ +21.5 °
Residual Solvents Pass 
Assay99.0%-   100.5%


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