sodium pyrosulfite

we are manufacturer of sodium metabisulphite and you can trust us about quality and price.

Application:bleaching agent for textile fibres;Colors stripper and dechlorination; preparation of Indigo Vat Dye;solubilizing and acidyfing agent for leather industries ;bleaching agent forpaper pulps;preserv -ative and sterilisation agent for food industries

 

Storage & handling:Store the product in a cool and dry place;prevent from direct sunlight ,water and  moisture; avoid contact with strong acid,oxidants  or poisonous substances. Exposure to moisture will make it oxidze easily to sodium sulphate.Do not store it for long time

 

 detailed specification of food grade:

ITEMS                                 STANDARD               

Na2S2O5                               98%min                 

OXIDE(CL)                            0.02%max                

SULPHITE(NA2S04)                1.45%max                 

IRON                                      0.001%max               

WATER INSOLUBLE MATTER      0.01%max                 

HEAVY METALS AS PB              0.001%max                   

ARSENIC                                0.0001%max              

PH                                                 3-4.5                   

sodium pyrosulfite