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•	Sodium Metabisulfite

•	Sodium Sulfite Anhydrous

•	Sodium Bisulphite

•	Ammonium bicarbonate

•	Magnesium Chloride (MgCL2·6H2O)

•	Zinc Chloride

•	Calcium Chloride

•	Sodium Bicarbonate Food/Industry Grade

•	Barium nitrate

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Sodium Sulfite Anhydrous

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
Item	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
Item	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

International Trade:
Contact person : Ms.Dora , Ms Cherry
Tel : 0086-536-8256719, 13356706380
Fax : 0086-536-8256716
Moible: 0086-13806499031,, 15065607933
QQ: Dora: 3001383736, Cherry: 3001399245
E-mail: dora@jiaozichem.com, cherry@jiaozichem.com
Website : m.dimiss.net.cn , www.jiaozichem.com?
Add:Room 1101&1103,Building D,Zhongtu Mansion,No.6565 East Fushou Street,Weifang City,Shandong,China

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