Sodium Metabisulfite(Industrial grade)
Alias:Sodium pyrosulfite
English name:Sodium Metabisulfite
Molecular formula:Na2S2O5   
Molecular weight: 190.10
Appearance:White or yellowish crystal powder.  
Quality standard: HG/T 2826-2008
Use:Printing and dyeing mordant;
antichlor in after fabric bleaching;
 chemical and medicine reducer and sulfonating agent;
 bleaching agent of bamboo, wood and paper fiber;
 nonferrous metal dressing agent;
 waste water finishing agent;
 rubber coagulator;
 alkyl spice aldehyde in spice industry;
 depilating agent, softening agent and anti-wear agent in leather industry;
 reducer of developer and protective agent of fixative in sensitization industry
Packing:
25, 50, 1000kg/bag or customized in polypropylene woven bag lined with polyethylene plastic bag or plastic and paper compound bag, kraft bag, etc.