sodium metabisulfite

• Post Date:

  Mar 05,2021

• Expiry Date:

  Sep 01,2021

• Detailed Description:

  Cas No. :7681-57-4 Payment Method: L/C.D/P at sight
  Name：Sodium Metabisulphite(SMBS)
  Chemical formula：Na2S2O5
  Physical appearance：White powder or small crystalline particles.
  Quality standard：GB1893-1998
  Application:
  1>Bleaching agent for textile fibres;
  2>Colors stripper and dechlorination;
  3>Preparation of Indigo Vat Dye;
  4>Solubilizing and acidyfing agent for leather industries ;
  5>Bleaching agent forpaper pulps;
  6>Preservative and sterilisation agent for food industries.
  Package:
  1>25kg /50kg compound plastic woven bag with inner polythene liner; 2>1000kg Jumbo bags; 3>Any other particular requirements to the package can be discussed.
  Shelf Life:Half one year.
  Storage & Handling:
  1>Store the product in a cool and dry place;
  2>Prevent from direct sunlight,water and moisture;
  3>Avoid contact with strong acid,oxidants or poisonous substances;
  4>Exposure to moisture will make it oxidze easily to sodium sulphate;
  5>Do not store it for long time.
  Product Specification:
  TECH GRADE FOOD GRADE
  NA2S2O5 >96.5% >97.0%
  SO2 >65% >65%
  FE <0.005% <0.003%
  WATER INSOLUBLE <0.05% <0.05%
  HEAVY METAL(PB) <0.001% <0.001%
  AS <0.0003% <0.0001%

• 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:

  CHANGSHA WEICHUANG CHEMICAL CO., LTD         

• Contact:

  Lucia Chen

• Tel:

  +86 17872514529

• Fax:

• Email:

  Lucia@weichuangchem.com