Appearance: White granular powder, melting at about **0degrees centigrade. Gradually darkenson exposure to light and/or heat, reasonably stable in air when dry, but deteriorates in solution in thepresence of air. One gram is soluble in about 3ml of water and in about *0ml of alcohol. It is insolublein chloroform, in ether, and in benzene.

Performance and Usages:
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 vitamic C losses of beverage,fruits and vegetables during processing procedures.
5.Used as a mutritional element in additive.
6.Feed additive

Technology Index:  

Items

Specification

Appearance

White or almost white

crystalline powder

Assay ,%

*9.0 ~ **0.5

Identification

Positive reaction

Color of  solution

0.*3 (**0nm) Max

pH Value

2.1~2.6

Heavy metals

*0ppm max

Copper

5ppm max

Arsenic

3ppm max

Lead

2ppm max

Mercury

1ppm max

Iron

2ppm Max

Oxalic acid ,%

0.2max

Loss on drying,%

0.4 max

Sulphated ash(Residue on ignaiton)

0.1% max

Specific Rotation

**0.5 o ~ *1.5 o

Organic volatile impurity

Pass