| Other: | Molecular weight :57.04Property :White or colorless transparent rametrine system crystal, the commodity is flaky, slightly sour taste, relative density of 1.52, melting point of 125.6 degrees, boiling point of 240 ℃.
 Application :Used as glass etching agent, disinfectant, preservative, solvent of metal beryllium, surface treatment agent of silicon steel plate, also used in the manufacture of ceramics and magnesium alloy.
 Pack:It is packed in 25kg plastic woven bag or composite kraft paper bag, carton or cardboard bucket.
 
	
		
			| ITEM | YingKe Standard |  
			| Apperance | White powder |  
			| Assay % | ≥99.0 |  
			| Sulfate(SO42-) % | ≤0.01 |  
			| Ammonium fluoride % | ≤0.5 |  
			| Iron(Fe) % | ≤0.005 |  
			| Burning residue | ≤0.05 |  
			| Chloride(Cl) % | ≤0.01 |  
			| Heavy meatel(Pb) % | ≤0.003 |  
			| Drying reduction % | ≤0.5 |  |