Sodium Sulfite Anhydrous

• Post Date:

  Jun 27,2015

• Expiry Date:

  Dec 24,2015

• Detailed Description:

  Cas No. :7757-83-7 Specs:97%min 98%min
  
  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	1ppm max
  Copper ( Cu )	0.0001% max	0.1ppm max
  Mercury ( Hg)	0.0001% max	0.1 ppm max

  Application :
  (1) Industry Grade : Used in Dyeing and printing Industry ,as dechlorinating agent and bleaching agent, in leather and tanning industry as bleaching agent , developer agent , reductant agent , stabilizer agent , or used in papermaking, electronic and water treatment industry.
  (2) Food Grade: In food industry as additive (E223) preservative, antioxidant and antimicrobic for fruits (dried, glazed and candled), vegetables (onions, potatoes, etc.), juices (citrus and grapes) and fish (shrimps and prawns). In silage treatment as antifermentative. In starch and sweeteners production as bacteriostatic.
  (3) Photo Grade: In the photographic industry as component of developer bath .
  (4) Pharmaceutical Grade : pharmaceutical industry for the production of chloroform, benzene and formaldehydephenylpropanoid Sulfone
  Packing: Packed in 25kg plastic woven bag, Kraft paper bag, PE bag, 500kg/1000kg/1100kg/1200kg jumbo bag or as per the buyer’s requirement
  Storage: Store the product in a dry and cool place.

• 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:

  Shouguang Boyu Chemical Co., Ltd.     [ China ]        

• Contact:

  Ms. Dora , Ms.Christy

• Tel:

  0086-536-8256719, 2103070

• Fax:

  0086-536-8256716

• Email:

  dora@jiaozichem.com