Sodium Sulfite

• Post Date:

  Mar 02,2021

• Expiry Date:

  Aug 29,2021

• Detailed Description:

  Cas No. :7757-83-7 Payment Method: L/C.D/P at sight
  Appearance:White crystalline powder.
  
  Quality standard:HG/T 2967-2000
  
  Application:
  1>Bleaching agent for paper pulps;
  2>Waste water treatment;
  3>Reducing and sulphonating agent for chemical synthesis;
  4>Bleaching agent for textiles;
  5>Colors stripper and deoxidization ;
  6>Floating agent for mining industry;
  7>Auxiliary chemical in tanning process.
  
  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:One year.
  
  Storage & handling:
  1>Store the product in a cool and dry place；avoid contact sunshine;
  2>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>Not store it for a long time.
  
  
  Product Specification:
  ITEM FOOD GRADE TECH GRADE TECH GRADE
  Na2SO3 >97% >96% >93%
  FREE ALKALI <0.1% <0.4% <0.4%
  IRON <0.002% <0.005% <0.005%
  WATERINSOLUBLE MATTER <0.02% <0.05% <0.05%
  SODIUM SULFATE(Na2SO4) <2.5% --------- ---------
  NACL <0.1% ---------- ---------

• CAS Registry Number:

  7757-83-7

• Synonyms:

  ;Sodium sulfite anhydrous;Sodium sulphite;anhydrous sodium sulfite;Sodium sulfite ,anhydrous;Sodium Sulfite (Food Grade);

• Molecular Formula:

  Na₂SO₃

• Molecular Weight:

  126.04

• Molecular Structure:

  

• Hazard Symbols:

   Xn:Harmful;
  

• Risk Codes:

  R22:;
  R36/37/38:;
  

• Safety Description:

  S24/25:;
  

• Company:

  Changsha weichuang chemical co., ltd         

• Contact:

  Lucia

• Tel:

  17872514529

• Fax:

• Email:

  Lucia@weichuangchem.com