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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
    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
     



    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 : www.pkspin.org , www.jiaozichem.com?
    Add:Room 1101&1103,Building D,Zhongtu Mansion,No.6565 East Fushou Street,Weifang City,Shandong,China

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