SMBS

• Post Date:

  Sep 18,2023

• Expiry Date:

  Dec 17,2023

• Detailed Description:

  Cas No. :7681-57-4 Quantity: 8000Metric Tons
  Specs:97%min
  Price:290 USD Metric Tons
  Payment Method: T/T,L/C at sight,D/P etc
  Name：
  
  Sodium Metabisulphite
  
  Chemical formula：
  
  Na2S2O5
  Physical appearance：
  
  White powder or small crystalline particles.
  
  Quality standard：
  
  GB1893-1998
  
  Description：
  
  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     [ China ]        

• Contact:

  lilian

• Tel:

  +86-731-84765733

• Fax:

• Email:

  lilian@weichuangchem.com