Ascorbic Acid

Type:Antioxidants

CAS No:50-81-7

Qty in 20′ FCL:22MT

Min. Order:3000KG

QC:Haccp,Kosher,Halal,Iso

 

Specification

ITEM                                                 STANDARD

Appearance                                      White or  almost  white crystal  or  crystalline powder

Identification                                    Positive

Melting point                                   191 ℃  ~  192℃

pH (5%,  w/v)                                   2.2 ~   2.5

pH (2%,w/v)                                     2.4 ~   2.8

Specific optical  rotation                  +20.5°  ~  +21.5°

Clarity  of  solution                          Clear

Heavy metals                                   =<0.0003%

Assay (as C 6H 8O6, %)                    99.0  ~  100.5

Copper                                             =<3 mg/kg

Iron                                                   =<2 mg/kg

Mercury                                           =<1 mg/kg

Arsenic                                             =<2 mg/kg

Lead                                                 =<2 mg/kg

Oxalic acid                                       =<0.2%

Loss   on drying                                =<0.1%

Sulphated ash                                   =< 0.1%

Residual solvents (as methanol)      =< 500  mg/kg

Total  plate count (cfu/g)                 =< 1000

Yeasts  & molds (cfu/g)                   =< 100

Escherichia.  Coli/g                          Absence

Salmonella/  25g                              Absence

Staphylococcus aureus/ 25g            Absence

 

Details :

Ascorbic Acid  is a white or slightly yellow crystals or powder,a little acid.m.p.190℃-192℃，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.

Usage: 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.