Sodium Metabisulfite
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Sodium Metabisulfite

Sodium Metabisulfite

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Name: Sodium Metabisulfite(Industrial grade)
Molecular formula:Na2S2O5
Molecular weight: 190.10
Appearance:White or yellowish crystal powder.  
Physicochemical Properties: Sodium pyrosulfite is a white or yellowish crystalline powder with strong SO2 odor and specific gravity of 1.4. It is soluble in water and acidic in aqueous solution. When exposed to strong acid, it emits SO2 to form corresponding salts. When exposed to air for a long time, it oxidizes to Na2S2O4, so the product can not last forever. SO2 is decomposed when the temperature is higher than 1500 C.

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
Name: Sodium Metabisulfite(Food grade)
Alias:Sodium pyrosulfite
English name:Sodium Metabisulfite
Molecular formula:Na2S2O5
Molecular weight: 190.10
Appearance:White or yellowish crystal powder.

Quality standard: GB 1893-2008
Use:Bleacher (Sweet, pastry, water-soaked bamboo slices, etc.); loosening agent (bread, biscuit, etc.); corrosion resistance antiseptic (fruit juice, can, brewing, grain storage, etc.); antioxygen antistaling agent (acupuncture needle sprout, sea food, garden stuff, etc.)
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