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Zinc sulfate ZnSO₄·7H₂O is white crystal with convergence, and tends to effloresce in dry air, and is soluble in water. It is mainly used to produce the raw materials of lithopone and other zinc salts, and is also very important to produce artificial fiber. It can also be used as conservative agent of dye, wood and leather, clarificant of bone glue, emetic and fangicide. It can also be applied in galvanization and floatation. In agriculture, it can be used as microelement fertilizer and in animal husbandry. It can be used as addictives of forage. The main products are as follows:

zinc sulfate for agricultural use

Operative norm: HG3277-2000

Package: Braiding bag made of polypropylene outside and plastic inside in three sizes---20kg , 25kg , 50kg .

Index name	Index
	ZnSO4·H2O Monohydrated zinc sulfate			ZnSO4·7H2O Zinc vitriol
	high-class	first-class	quality	high-class	first	quality
（ Zn ） content ≥%	35.3	33.8	32.3	22.0	21.0	20.0
Freeacid content ≤%	0.1	0.2	0.3	0.1	0.2	0.3
（ Pb ） content  ≤%	0.002	0.010	0.015	0.002	0.005	0.01
（ Cd ） content  ≤%	0.002	0.003	0.005	0.002	0.002	0.003
（ As ） content  ≤%	0.002	0.005	0.010	0.002	0.005	0.007