Sodium metabisulfite

• Post Date:

  Nov 27,2025

• Expiry Date:

  May 26,2026

• Detailed Description:

  Cas No. :7681-57-4 Specs:Refine level
  

  Company standard

  Item	Index
  Main content(Na2S2O5)	≥98.5
  NaClcontent	≤0.012
  Fe % (As content Fe)	≤0.0005
  Water-Insoluble	≤0.005
  Clarity	Clear
  Arsenic(As) content	≤0.00005
  Heavy metal content(Pb)	≤0.00005

• CAS Registry Number:

  7681-57-4

• Synonyms:

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

• Molecular Formula:

  Na₂S₂O₅

• Molecular Weight:

  190.1065

• Molecular Structure:

  

• Hazard Symbols:

   Xn:Harmful;
  

• Risk Codes:

  R22:;
  R31:;
  R41:;
  

• Safety Description:

  S26:;
  S39:;
  S46:;
  

• Company:

  WeiFang Kailong Chemical Industry Co.,Ltd.     [ China ]          

• Contact:

  Mr.Jia

• Tel:

  0086-536-5317817,5302819

• Fax:

  0086-536-5339779

• Email:

  info@klong.cn