| Other: | Molecular weight:125.61Property :Colorless cubic crystalline powder.The density of 4.24 g/cm3.Melting point is 1473 ℃.The boiling point of 2489 ℃.Soluble in hot hydrochloric acid, slightly soluble in water, insoluble in hydrofluoric acid, alcohol.
 Application :Single crystal for optical glass and laser, raw material for pharmaceutical industry and chemical industry
 Pack:It is packed in 25kg plastic woven bag or composite kraft paper bag, carton or cardboard bucket.
 
	
		
			| ITEM | YingKe Standard |  
			| Co ppm | ≤1 |  
			| Cr ppm | ≤1 |  
			| Cu ppm | ≤2.0 |  
			| Fe ppm | ≤5 |  
			| Mn ppm | ≤1 |  
			| Ni ppm | ≤1 |  
			| Calcination of weightlessness | ≤1 |  |