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    SZSE：002741
    
    
    
    

    


    
    
    
        
    
    

    

    
    
    
        
    
    

    

    
    
    
        
    
    

    


    
    
    
        
    
    

    


    
    
    
        
    
    

    






    
    
    
        
    
    
    
    
        
    
    
    
    
    
    
    
        
    

            
            
    
                
    Chemical Reagents
    
                
            
    
            
    
                

                
    Potassium stannate trihydrateCOA Report
    

                


                
    
                
    
                    
      
                        
    • CAS No.：12125-03-0
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    • Molecular weight：298.95
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    • Aliases：Potassium stannate trihydrate
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    • Molecular formula：K2SnO3?3H2O
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    • EC No.：234-721-9
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    Information
    
                    
                    Specification category：
                  
                    
    
                        
    
                            
                                
    
                                     Product No.  Product name  specifications
                                
    
                                        
     
1.01736.010  Potassium stannate trihydrate  Spec25kg/Drum
     
     
1.01736.040  Potassium stannate trihydrate  AR25kg/Drum
    
                              
                                
                        
    
                    
    
                    
                    Characteristic：
                    Appearance and properties: White or light brown crystal powder.
    
Relative density: 3.197(water=1)(25℃)
    
Melting point(℃): 140
    
Solubility: Dissolve easily in water(1105 g/L,15℃). Its aqueous solution is alkaline. Insoluble in alcohol and acetone.
    
                    Technical  indicators：
                 
                    
    
                        
    
                            
                                
    
                                     Item AR CP
                                
    
                                        
     
Assay(K2SnO4·3H2O) ≥97.0% ≥96.0%
     
     
Insoluble matter in water Pass Pass
     
     
Free alkali(as KOH) ≤1.0% ≤1.5%
     
     
Chloride(Cl) ≤0.02% ≤0.04%
     
     
Iron(Fe) ≤0.005% ≤0.01%
     
     
Sodium(Na) ≤0.1% ≤0.15%
     
     
Heavy metals(as Pb) ≤0.005% ≤0.01%
    
                              
                                
                        
    
                    
    
                    
                
    
                
                
    
                    
    
                        
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