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Sodium metabisulfite

Product name:  Sodium metabisulfite
Molecular formula: Na2S2O5
Molecular weight: 190.10
Appearance: white crystalline powder
Use:Printing and dyeing mordant; dechlorination agent after fabric bleaching; chemical and pharmaceutical reducing agent and sulfonating agent; bamboo, wood and paper fiber bleaching agent; non-ferrous metal ore dressing agent; wastewater treatment agent; rubber coagulant; Aldehyde; used in the leather industry as a depilatory agent, softener and anti-wear agent; in the photo-sensing industry as a reducing agent for developers, as a protective agent for fixer solutions, etc.
Net weight: 25, 50, 1000kilograms per bag or following your demands.
 
项目Item 国家标准Chinese standard
HG/T2826-2008
企业经常值Company standard
优等品Top-grade 一等品First grade
主含量Main content(Na2S2O5) ≥96.5 ≥95.0 ≥97.0
铁含量Fe %( Fe) ≤0.005 ≤0.010 ≤0.002
水不溶物含量Water-Insoluble ≤0.05 ≤0.05 ≤0.02
砷(以As计)含量Arsenic(As) content ≤0.0001 -- ≤0.0001
 

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