Sodium Metabisulfite (SMBS) Food Grade & Industrial Grade

Sodium metabisulfite or SMBS is an inorganic compound of chemical formula Na2S2O5. The substance is sometimes referred to as disodium metabisulfite. In the photographic industry, sodium metabisulfite is used as a fixative ingredient. In the perfume industry, it is used to produce vanillin. Sodium metabisulfite can be used as a preservative in the brewing industry, a coagulant in the rubber industry and a dechlorinating agent after bleaching cotton cloth. It can be used as a reducing agent in the fields of organic intermediates, dyes and leather making.

Products Details

Description of goods:  Sodium Metabisulfite Mol.formula:           Na2S2O5 CAS No. :              7681-57-4 Grade Standard:       Tech Grade Food Grade Purity:                 97%min   Specification
Item Standard Results
Main content(Na2S2O5)  % ≥97% 97.1%
Fe ( Fe) ≤0.003% 0.003%
Water-Insoluble ≤0.05% 0.02%
Arsenic(As) content ≤0.0005% 0.0001
(pb) content ≤0.0005% 0.0005

Sodium Metabisulfite (SMBS) Food grade

  1. Bleach (such as candy, cakes, etc.);
  2. Loosening agents (such as bread, biscuits, etc.);
  3. Antiseptic fungicides (such as juice, canned, etc.);
4.Anti-oxidants (such as seafood, fruits and vegetables).   Sodium Metabisulfite (SMBS) Industrial grade
  1. Printing and dyeing mordant; Dechlorination agent after fabric bleaching; 2.Chemical and pharmaceutical reductants and sulfonating agents;
3.Bamboo, wood, paper fiber bleach; 4.Non-ferrous metal mineralizers; 5.Wastewater treatment agent; 6.Rubber coagulant and so on.     Package 25kg/bag ,or according your requirement

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