Sodium Metabisulfite(Industrial grade)
name：Sodium Metabisulfite(Industrial grade)
Formula：Na2S2O5
m.W：190.10
CAS NO.：
Characters：White or yellowish crystalline powder.
Usage：Printing and dyeing mordant;Dechlorination agent after bleaching of fabric;Reducing agent and sulfonating agent for chemical and pharmaceutical products;Bamboo, wood, paper fiber bleaching agent;Non-ferrous metal dressing agent;Wastewater treatment agent;Rubber solidifying agent;The spice industry is used as an alkyl;Leather industry is used as hair removal agent, softener and wear-resisting agent;The photosensitive industry is used as the reducing agent of the developer and the protectant of the fixing solution.
Specification：
Item | Index | |
superior product | top quality goods | |
main content(in Na2S2O5），%≥ | 96.5 | 95% |
Iron(Fe)content, %≤ | 0.005 | 0.01 |
Substances not dissolved in water，%≤ | 0.05 | 0.05 |
As contents， %≤ | 0.0001 | --- |