sodium metabisulphite

• Post Date:

  Oct 11,2025

• Expiry Date:

  Apr 09,2026

• Detailed Description:

  Cas No. :7681-57-4 ChoiceChem is a leading chemical company with its own factories and strong partnerships. We are the second-largest producer of sodium metabisulfite in China and an OEM partner for BASF. Our production process involves creating sodium metabisulfite, sodium sulfite, and sodium bisulphite, during which we collect SO2 gas. This gas is then used to produce magnesium sulfate (MGSO4) and sulfate of potash (SOP) through a reaction with magnesite and potassium chloride. Thanks to the almost free cost of sulfuric acid in this process, our MGSO4 and SOP are cheaper than competitors. We also have food-grade and pharmaceutical-grade production licenses, meaning our products are suitable for fertilizers, food, and pharmaceutical applications.
  
  For more information,please contact WA:+86 13548551895 OR Email:cherie@choice-chem.com

• 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:

  choice chemicals     [ China ]        

• Contact:

  Cherie Zhong

• Tel:

  +86-135-48551895

• Fax:

• Email:

  cherie@choice-chem.com