Sodium Sulfite Anhydrous

• Post Date:

  Apr 28,2021

• Expiry Date:

  Oct 25,2021

• Detailed Description:

  Cas No. :7757-83-7

  Property: white gravel or powder crystal,relative density is 1.561, less to dissolve in water and its water solution has alkaline reaction; it is hard to dissolve in ethanol. It is used to produce chloroform, solasulfone and Benzaldehyde in medical industry.

  Molecular Formula : Na₂SO₃

  Molecule Weight : 126.04

  CAS NO .: 7757-83-7

  Appearance : White Free Flowing Fine Crystal or Powder

  Specification for Industry Grade and Food Grade :

  Item	Quality Index
  	Industry Grade	Food Grade
  Purity ( As Na2SO3 )	96.0% min	98.0% min
  Sodium sulphate ( SO4 )	2.5% max	1.5% max
  Chlorides ( As NaCL )	0.5% max	0.1% max
  Arsenic ( As )	-	0.0002% max
  Heavy metals ( As Pb )	-	0.0005% max
  Iron (Fe)	0.005% max	0.002% max
  Water insolubles	0.05% max	0.02% max

  Specification For Photo Grade and Pharmaceutical Grade

  Item	Quality Index
  	Photo Grade	Pharmaceutical Grade
  Purity ( As Na2SO3)	98.0% min	98.0% min
  Sodium sulphate (SO4)	1.5% max	1.5% max
  Chlorides ( As CL-)	0.05% max	0.05% max
  Arsenic ( As )	0.0002% max	2ppm max
  Lead ( As Pb )	0.0005% max	2ppm max
  Iron (Fe)	0.001% max	5ppm max
  Selenium (Se)	0.0001% max	1ppm max
  Zinc ( Zn )	0.0001% max

• 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:

  Shandong Swift China International Co., Ltd.     [ China ]        

• Contact:

  Charles Li

• Tel:

  0536-5191398

• Fax:

  0536-5191398

• Email:

  sales@xunhuachem.com