Specifications
sodium pyrosulfite1.monthly output about 3000MT
2.Purity(Na2S2O5): 96% Min
3.SO2 Content: 65% Min
4.CAS No.:7681-57-4
sodium pyrosulfite
(1)Molecular formula: Na2S2O5
(2)CAS No.: 7681-57-4
(3) Physical appearance: white or slightly yellowish crystalline powder
(4)Specification:Main Content: 96%min, Water Insoluble: 0.05%max, Iron: 50ppm max, Pb: 10ppm max,
As: 2ppm max ,pH: 4.0-4.6
)Bag marks:Sodium metabisulphite, N.W.: 25kgs, G.W. 25.1kgs, Made in China.
(6)Main use: For tech use
a):Bleaching agent for textile fibres, paper pulps
b):Colors stripper and dechlorination
c):Preparation of Indigo Vat Dye
d):solubilizing and acidyfing agent for leather industries
e):wastewater treatment
(7)Packing:25kgs net PP woven bag with PE liner (if need, we could arrange the pallet.)
Cautions: Keep away from sunlight and moisture, store in ventilated Dry place.
We warmly welcome all friends visit our factory to check the quality and the facilities,
and we hope to have good cooperation for our mutual benefit.