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    Hydrofluoric acid
    
           
    
	
		
    
			Molecular formula
			HF
		
    
		
    
			Molecular weight
			20.01
		
    
		
    
			CAS    NO
			7664-39-3
		
    
		
    
			Characters
			Colorless transparent smoking liquid
		
    
		
    
			Use
			Used to test silicon, metallurgy analysis, etc.
		
    
		
    
			Specification
			Analytically pure 40%-50%, chemically pure40%-50%, industrial grade20%-50%
		
    
		
    
			Executive standard
			GB/T 620-1993.
		
    
		
    
			Technical index
			
			
    
				
					
    
						
						
    Name
    
						    		
						
						
    Excellent grade pure(%)
    
						    		
						
						
    Analytically pure (%)
    
						    		
						
						
    Chemically pure(%)
    
						    		
					
    
					
    
						Ignition residue(Sulfate)
						
						
    ≤0.001
    
						    		
						
						
    ≤0.002
    
						    		
						
						
    ≤0.01
    
						    		
					
    
					
    
						Chloride(Cl)
						
						
    ≤0.0005
    
						    		
						
						
    ≤0.001
    
						    		
						
						
    ≤0.005
    
						    		
					
    
					
    
						
						
    Sulfate and sulfite(SO4)
    
						    		
						
						
    ≤0.001
    
						    		
						
						
    ≤0.002
    
						    		
						
						
    ≤0.005
    
						    		
					
    
					
    
						
						
    Phosphate(PO4)
    
						    		
						
						
    ≤0.0001
    
						    		
						
						
    ≤0.0002
    
						    		
						
						
    ≤0.0005
    
						    		
					
    
					
    
						
						
    Fluosilicate (SiF6)
    
						    		
						
						
    ≤0.02
    
						    		
						
						
    ≤0.04
    
						    		
						
						
    ≤0.06
    
						    		
					
    
					
    
						
						
    Ferrum(Fe)
    
						    		
						
						
    ≤0.00005
    
						    		
						
						
    ≤0.0001
    
						    		
						
						
    ≤0.0005
    
						    		
					
    
					
    
						
						
    Heavy metal(Pb)
    
						    		
						
						
    ≤0.0001
    
						    		
						
						
    ≤0.0005
    
						    		
						
						
    ≤0.001
    
						    		
					
    
				    
			
    
			    		
		
    
		
    
			Packing
			500ml for bottle packing, 25kg for pail packing.
		
    
	    

    

    
           
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