Sodium Pyrosulfite

• Category :

  Organic chemicals and Derivatives

• 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 :

  Molecular formula：Na₂S₂O₅
  Molecular weight：190.107
  CAS No：7681-57-4
  Properties：White or yellow crystals with a strong pungent odor. Dissolved in water, the aqueous solution is acidic..
  Application：Used for the production of insurance powder, sulfamethoxazole, metamizole, caprolactam, etc; Used for the purification of chloroform, phenylpropanol sulfone, and benzaldehyde. Ingredients used as fixing agents in the photographic industry; The spice industry is used to produce vanillin; Used as a preservative in the brewing industry; Rubber coagulants and dechlorination agents for bleached cotton fabrics; Organic intermediates; Used for printing and dyeing, leather making; Used as a reducing agent; Used for wastewater treatment in the electroplating industry, oil fields, and as a mineral processing agent in mines; Used as preservatives, bleaching agents, and loosening agents in food processing.
  Description

  Indicator Description	AR
  Na2S2O5 % ≥	96.0
  Cl– % ≤	0.005
  Fe%≤	0.0005
  Pb%≤	0.0005
  As%≤	0.0001
  Silver thiosulfate%≤	0.05
  Water insoluble substances %≤	0.005

• Molecular Structure :