ProductID: 42816455916 ProductName: Sodium Metabisulphite Specifications: 96% ProductRemarks: TechGrade ProductCategory: Textileprinting,dyeing ProductDescription: SynonymsName:sodium pyrosulfite / sodium metabisulphite CAS No.： 7681-57-4 MolecularWeight:190.09 ChemicalFormula:Na2S2O5 Qualitystandard:HG/T　2826－1997 Item Industrialstandard(Topgrade) Valueofourcompany Assay(以Na2S2O5)%≥ 96.0 97.5 Ironcontent(baseonFe)%≤ 0.005 0.002 waterinsolublematter%≤ 0.05 0.02 Arseniccontent(baseonAs)≤ 0.0001 0.0001