sodium sulfite

• Post Date:

  Jul 05,2013

• Expiry Date:

  Jan 01,2014

• Detailed Description:

  Cas No. :7757-83-7

  Anhydrous sodium sulphite-High pure grade
  Molecular Formula: Na₂SO₃
  Molecular Weight: 126.04
  CAS NO: 7757-83-7
  Appearance: white crystalline powder
  Character: with the smell of sulfur dioxide , lose SO₂  in the air,become the sulfate
  Solubility: soluble in water,slightly soluble in alcohol,insoluble in liquid ammonia
  Usages: Main used in printing and dyeing,paper making,photo,food,pharmacy,petroleum chemical and so on
  Packing: 25kg PE bag or 1000kg/bag Product specifications:

  Items	Index
  	Standard	Reference value
  Na2SO3 ≥%	98.0	98.6
  Fe≤ %	0.0005	0.0003
  Insoluble in water≤ %	0.005	0.003
  Na2CO3≤ %	0.1	0.001
  Na2SO4≤ %	1.5	0.62
  Nacl≤ %	0.005	0.0005
  Pb≤ %	0.001	0.0002
  As≤ %	0.0001	0.00002
  Sodium thiosulfate≤ %	0.01	0.001
  Appearance of soluble	white

• 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:

  Dongying Fengyuan Chemical Co.,Ltd.     [ China ]        

• Contact:

  Du Qiong

• Tel:

  +86-546-8023567 13665460623

• Fax:

  +86-546-8022557

• Email:

  sales@fychem.cn