Anhydrous sodium sulfate, dyeing and bleaching agent used deoxidizer

Model 
 RZ-020 
 Content 
 98% (%) 
 Manufacturer / origin 
 Tianjin 
 Use level 
 Industrial 
 Granularity 
 80 (mesh) 
 Implementation of quality standards 
 GB 1894-92 
 CAS Number 
 7757-83-7 
 Brand 
 Run Exhibition 






 Guangzhou Supply: anhydrous sodium sulfite 

 Molecular formula: Na2SO3 

 Molecular weight: 126.04 Properties: White powder or hexagonal prismatic crystals. Density 2.633g/cm3. Decomposition when heated to red hot. Very stable, not easily oxidized. Soluble in water, slightly soluble in alcohol, insoluble in liquid chlorine, ammonia. Strong reducing agent. In the humid air and sunlight easily oxidized to sulfate under. Sulfur dioxide reacts with sodium bisulfite. Absorbed by the soda solution in contact with the production of sulfuric acid tail gas combustion of sulfur dioxide or sulfur dioxide gas, has been concentrated solution of sodium sulfite in 95 ~ 100 ℃ under the precipitation of crystals from the concentrated solution obtained. 

 Name of index 

 Excellence 

 First grade 

 Qualified 

 Sodium sulfite (Na2SO3),% 

 97.0 

 96.0 

 93.0 

 Iron (Fe),% 

 0.003 

 0.005 

 0.01 

 Water insoluble,% 

 0.02 

 0.03 

 0.05 

 Free alkali (as Na2SO3 dollars),% 

 0.10 

 0.40 

 0.