Chemical Name: Sodium Metabisulfite
Another Name: Sodium Pyrosulfite
Molecular Formula: Na₂S₂O₅
Molecular Weight: 190.1
CAS No. : 7681-57-4
Standard Executed: HG/T 2826-2008  GB 1893-2008

Appearance
White or slightly yellow crystalline powder

Application
• Printing and dyeing mordant, dechlorination agent after bleaching, bleaching agent for bamboo, wood and paper fiber;
• Chemical and pharmaceutical reducing agents and sulfonating agents;
• Non-ferrous mineral processing agents, waste water treatment agents;
• Rubber coagulant, used in the fragrance industry as a hydrocarbon fragrance aldehyde;
• Leather industry used as depiler, softener and wear-resisting agent;
• The photosensitive industry is used as a reducing agent for the developer, a protective agent for the fixing solution, etc.
• Food grade products used as bleach (e.g. sweets, pastries, etc.); Loosening agents (such as bread, biscuits, etc.); Antiseptic fungicides (such as juice, canned, brewing, food storage, etc.); Antioxidant preservatives (such as seafood, fruits and vegetables, etc.).

Packing
• Net weight：25,1000,1250,1350kg；
• PP woven bags, paper-plastic composite bags or kraft paper bag, with inner PE bag.

Specification