QiXia TongDa Flotation Reagent Co., Ltd.

Sodium Metabisulfite

• Category :

  Catalyst and Auxiliary

• Synonyms :

  Sodium pyrosulfite;disodium disulphite;Sodium metabisulphite;Sodium disulphite;Sodium pyrosulphite;SODIUM DISULFITE;disodium oxidosulfanesulfonate oxide;Sodium Metabi;Metabisulfite Sodium;Sodium Metabisulfite (Food Grade);

• CAS NO :

  7681-57-4

• EC NO :

  231-673-0

• Molecular Formula :

  Na₂S₂O₅

• Molecular Weight :

  190.1065

• Main Specifications :

• InChI :

  InChI=1/2Na.H2O5S2/c;;1-6(2)7(3,4)5/h;;(H,1,2)(H,3,4,5)/q2*+1;/p-2

• Product description :

  Quality Standard HG/T2826-2008

  Item	Chinese standard		Company standard
  	HG/T2826-2008
  	Top-grade	First grade
  Main content(以Na2S2O5计),%	≥96.5	≥95.0	≥97.0
  Fe (Fe),%	≤0.005	≤0.010	≤0.002
  Water-Insoluble%	≤0.05	≤0.05	≤0.02
  Arsenic(As) content%	≤0.0001	—	≤0.0001

  Molecular Formula: Na2S2O5

  Molecular weight:190.10

  Appearance:White crystal powder

• Molecular Structure :