CAS No.:50-81-7
HS Code:29362700
Specification:BP/USP/E
Packing:25kg bag/drum/carton
Port of loading:Shanghai ; Qindao;Tianjin
Min. Order:1MT
Identification
Positive Reaction
Melting point
190-192Centi Grade Degrees
PH Of 5 Percent Water Solution
2.1-2.6
Clarity Of Solution
Clear
Colour Of Solution
BY7max
Copper
5mg/kg max
Heavy Metals
10ppm max
Iron
2ppm max
Oxalic Acid
0.2% max
Sulphate Ash (Residue On Ignition)
0.1% max
Specific Optical Rotation
+20.5°-+21.5°
Organic Volatile Impurities
Pass
Assay
99.0%-100.5%
Loss on drying
≤0.4%
Arsenic
≤3ppm
Mercury
≤1ppm
Lead
≤2ppm
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).
In the pharmaceutical industry,can be used to treat scurvy and various acute and chronic infections 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 food preservation,widely used in meat products,fermented flour products,beer,tea dtinks, fruit juice,canned fruit,canned meat and so on;also commonly used in cosmetics,feed additives and other industrial areas.