Sodium metabisulfite:- industrial sewage treatment, food grade bleach and preservative

Formular: Na2S2O5
CAS: 7681-57-4
HS: 28321000
Appearance: white crystal powder
Package: 25kg、1000kg/bag
Application: 
•Used as dressing agent, wastewater treatment agent in industry 
•Used as waste water Mordant of printing and dyeing and etc.
•Used as reducing agent for developing agent and protective agent for fixing solution in photography industry

•Used as food additives in food industry