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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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