sodium metabisulfite

• Post Date:

  Jul 05,2013

• Expiry Date:

  Jan 01,2014

• Detailed Description:

  Cas No. :7681-57-4

  Molecular Formula: Na₂S₂O₅
  Molecular Weight: 190.10 CAS NO:7681-57-4
  Appearance: white or light yellow crystalline powder
  Character: with smell of SO₂,soluble in water,the solution is acidic.
  Usages: Fiber, photo ,pharmacy,chemical ,petroleum chemical and so on.
  Packing: 25kg PE bag or 1000kg/bag Product specifications:

  Items	Index
  	standard		Reference value
  Na2S2O5 ≥%	97.5	98.6
  Fe ≤ %	0.003	0.0026
  Insoluble in water ≤ %	0.01	0.008
  Cl ≤ %	0.003	0.0025
  Pb≤ %	0.001	0.0007
  As ≤ %	0.0001	0.00008
  PH	3.2-4.6	4.1

• 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:

  Dongying Fengyuan Chemical Co.,Ltd.     [ China ]        

• Contact:

  Du Qiong

• Tel:

  +86-546-8023567 13665460623

• Fax:

  +86-546-8022557

• Email:

  sales@fychem.cn