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Sodium metabisulfite

Inquiry
  Post Date: Nov 14,2013
  Expiry Date: May 13,2014
  Detailed Description: Cas No. :7681-57-4
PropertiesWhite 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
  1. printing and dying mordant dyeing, antichlor after cotton bleached.Cotton scouring agents
  2. 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.
  3. Fibre Bleacher for bamboo,wood,and paper.
  4. Nonferrous Metal Dressing Agent;Waste water treatment;Rubber coagulator agent.
  5. Leather treatment,to make soft,fulness firm and tenacious leather,improve leather waterproof,wear-resisting performance.
  6. 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: 7681-57-4 Sodium metabisulfite
  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
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