タイトルまたは説明

Sodium Metabisulfite(Industrial grade) Alias:Sodium pyrosulfite Molecular formula:Na2S2O5 Appearance:White or yellowish crystal powder. Item Index Superior quality First class Main content(Na2S2O5 ), % ≥ *6.5 *5% Iron(Fe), % ≤ 0.**5 0.*1 Water-insoluble, % ≤ 0.*5 0.*5 Arsenic(As), % ≤ 0.***1 **- 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. Packing:*5, *0/bag or customized in polypropylene woven bag lined with polyethylene plastic bag.