Sodium metabisulfite

• Post Date:

  Nov 14,2013

• Expiry Date:

  May 13,2014

• Detailed Description:

  Cas No. :7681-57-4

  Properties

  White crystal powder, Have strong SO2 smell,specific gravity 1.4. Soluble in water,liquid solution is acidic. It can be oxidize to Na2S2O6 if put long time in the air,so this product can not stock for long time.

  Application

  printing and dying mordant dyeing, antichlor after cotton bleached.Cotton scouring agents Reducing agent and sulfonate agent for chemical and Pharm industries. To produce chloroform, solasulfone, benzaldehyde for medicines; To produce hydroxycitronellal, hydroxylamine hydrochloride for chemical industries. Fibre Bleacher for bamboo,wood,and paper. Nonferrous Metal Dressing Agent;Waste water treatment;Rubber coagulator agent. Leather treatment,to make soft,fulness firm and tenacious leather,improve leather waterproof,wear-resisting performance. Developers for Photographic industrial.

   

  Standard Analysis specifications ( HG/T2826-2008 )
  Main content(Na2S2O5)	96.5%min
  Water insoluble matter	0.05%max
  Fe	0.005%max
  As	0.0001%max

• 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:

  Wuhan Xinru Chemical Industry Co.,Ltd.     [ China ]          

• Contact:

  hu

• Tel:

  +86-27-59843600 / 59843601

• Fax:

  +86-27-66660488

• Email:

  xinru@whxinru.cn