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          Sodium fluoride
          
           
          
	
		
          
			Molecular formula
			NaF
		
          
		
          
			Molecular weight
			41.99
		
          
		
          
			CAS    NO
			7681-49-4
		
          
		
          
			Characters
			White crystal powder
		
          
		
          
			Use
			Used as screening agent and fusing agent.
		
          
		
          
			Specification
			Excellent grade pure, Analytically pure , chemically pure
		
          
		
          
			Executive standard
			GB/T 1264-1997
		
          
		
          
			Technical index
			
			
          
				
					
          
						
						
          Name
          
						          		
						
						
          Excellent grade pure(%)
          
						          		
						
						
          Analytically pure (%)
          
						          		
						
						
          Chemically pure(%)
          
						          		
					
          
					
          
						
						
          Content(NaF)
          
						          		
						
						
          ≥99.0
          
						          		
						
						
          ≥98.0
          
						          		
						
						
          ≥98.0
          
						          		
					
          
					
          
						
						
          Clarity test
          
						          		
						
						
          qualified
          
						          		
						qualified
						qualified
					
          
					
          
						
						
          Water undissolved substance
          
						          		
						
						
          ≤0.01
          
						          		
						
						
          ≤0.05
          
						          		
						
						
          ≤0.1
          
						          		
					
          
					
          
						
						
          loss on drying
          
						          		
						
						
          ≤0.3
          
						          		
						
						
          —
          
						          		
						
						
          —
          
						          		
					
          
					
          
						
						
          Acidity(H+),mmol/100g
          
						          		
						
						
          ≤2.5
          
						          		
						
						
          ≤5.0
          
						          		
						
						
          ≤10.0
          
						          		
					
          
					
          
						
						
          Alkalinity(OH-),mmol/100g
          
						          		
						
						
          ≤1.0
          
						          		
						
						
          ≤2.0
          
						          		
						
						
          ≤4.0
          
						          		
					
          
					
          
						
						
          Chloride(Cl)
          
						          		
						
						
          ≤0.002
          
						          		
						
						
          ≤0.005
          
						          		
						
						
          ≤0.01
          
						          		
					
          
					
          
						
						
          Sulfate(SO4)
          
						          		
						
						
          ≤0.01
          
						          		
						
						
          ≤0.03
          
						          		
						
						
          ≤0.05
          
						          		
					
          
					
          
						Fluosilicate (SiF6)
						≤0.1
						≤0.6
						≤1.2
					
          
					
          
						Ferrum(Fe)
						≤0.002
						≤0.005
						≤0.005
					
          
					
          
						Heavy metal(Pb)
						≤0.001
						≤0.003
						≤0.005
					
          
				          
			
          
			          		
		
          
		
          
			Packing
			500kg for bottle packing, 40kg for pail packing, 25kg for paper plastic packing
		
          
	          

          

          
           
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