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