Zinc Sulfate

What hell in this bag? Try to find. It is really fatastic to find the answer.......

1) ZnSO₄.7H₂O: Zn≥22.0 &. Zn≥21.0, this product is industrial grade product.

 2) ZnSO₄.H₂O: Zn≥34.5, Pb≤0.002, As≤0.0005,Cd≤0.003, this product is feed grade product.

PHYSICAL DESCRIPTION/ PROPERTIES

l         Mol Weight:    179.45 

l         Odour:        Odourless 

l         Density:       3.28  

l         Solubility in Water: 30%  

l         Boiling Point:  740 C (Decomposes) 

l         Appearance:   White Crystalline powder or Granula  

l         Property:      White, fluid powder, its relative density is 3.28, soluble in water, slightly soluble in alcohol, insoluble in acetone and easily deliquesced in air. 

l         Melting Point:  It loses water at 30 degree C to give the hexahydrate and more water is lost at 70 degree C to form the monohydrate. The anhydrous salt forms at 280 degree C  
 

SPECIFICATION

item	Specification
	powder industry grade	Powder feed grade	Granular fertilizer grade
Content	98%min	98%min	98%min
Zinc:	35% min	35% min	33.5% min
As:	10ppm max	5ppm max	5ppm max
Pb:	20ppm max	10ppm max	10ppm max
Cd:	20ppm max	10ppm max	10ppm max
Size:	80mesh	80mesh max	8-10mesh

Resource:

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