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亚硫酸钠
Time:2010-3-30    Browse:1785

Commodity: Anhydrous sodium sulfite
Molecular formula: Na2SO3
Properties: White crystalline powder.
Package: In net 25 kg plastic woven bag with inner bag or according to customers’ demand.
Applications: It is used as convenient source of sulphur dioxide, as a preservative particularly for processed meats and fruit juices, as an antichlor following bleaching by sodium hypochlorite,as a preservative in developing solutions, as a reducing agent in the manufacture of some dyestuffs,as an oxygen scavenger in boiler feed waters and as an antichlor and also as the chemical in the processing of wood pulp.
Specification data:

Name
Premium grade
First grade
Second grade
Sodium sulphite
98
96
93
Fe
0.003
0.005
0.01
Water insoluble matter
0.02
0.3
0.05
Free alkali
0.1
0.4
0.6
Sulfate radical
2.5
/
/
Sodium chloride
0.1
/
/

 

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