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    Ammonium silicofluoride
    
           
    
	
		
    
			Molecular formula
			(NH4)2SiF6
		
    
		
    
			Molecular weight
			178.15
		
    
		
    
			CAS    NO
			16919-19-0
		
    
		
    
			Characters
			Colorless crystal powder
		
    
		
    
			Use
			Used for carving, pesticide and hot welding flux.
		
    
		
    
			Specification
			Analytically pure , chemically pure
		
    
		
    
			Executive standard
			Enterprise standard
		
    
		
    
			Technical index
			
			
    
				
					
    
						
						
    Name
    
						    		
						
						
    Analytically pure (%)
    
						    		
						
						
    Chemically pure(%)
    
						    		
					
    
					
    
						
						
    Water solubility
    
						    		
						
						
    qualified
    
						    		
						
						
    qualified
    
						    		
					
    
					
    
						
						
    Chloride(Cl)
    
						    		
						
						
    ≤0.005
    
						    		
						
						
    ≤0.02
    
						    		
					
    
					
    
						
						
    Sulfate(SO4)
    
						    		
						
						
    ≤0.01
    
						    		
						
						
    ≤0.05
    
						    		
					
    
					
    
						
						
    Carbonate(CO3)
    
						    		
						
						
    ≤0.01
    
						    		
						
						
    —
    
						    		
					
    
					
    
						
						
    Free acid
    
						    		
						
						
    ≤0.5
    
						    		
						
						
    —
    
						    		
					
    
					
    
						
						
    Heavy metal(Pb)
    
						    		
						
						
    ≤0.005
    
						    		
						
						
    ≤0.01
    
						    		
					
    
					
    
						
						
    Ferrum(Fe)
    
						    		
						
						
    ≤0.005
    
						    		
						
						
    ≤0.01
    
						    		
					
    
				    
			
    
			    		
		
    
		
    
			Packing
			500kg for bottle packing, 40kg for pail packing, 25kg for paper plastic packing
		
    
	    

    

    
           
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