Zinc Sulphate Heptahydrate Crystals

We are a major manufacturer and exporter of Zinc Sulphate Heptahydrate Crystals. Our company has zinc sulfate production factory, with Annual production 20000 tons of zinc sulfate heptahydrate, Specifications :-
Zn:21.8%min crystals
21.5% min granule
Cd:10ppm max
Pb:10ppm max
As:5ppm max
Granularity:crystals -40mesh 98%min
Granule 1-3mm 95% min
2-4mm 95% min
Molecular Formula: ZnSO4a c7H2O
Molecular Weight: 287.54(ZnSO4a c7H2O)
Appearance: Colorless or white crystal, granule or powder odorlessness.

Usage:
1, Agriculture usage: trace element of fertilizer and enhance of pesticide.
2, Feed usage: zinc supplements in feed processing, trace element of mineral substance.
3, Industrial usage: mainly used for manufacture of lithopone, man-made fibers, electrolytic industry, electroplate inorganic pigment industry and mining industry.
4, Medicine usage: In medicine treatment it used as astringent, emetic, nutritious supplements
Packing and Storage: Net 25kgs plastic woven bags or paper bags, stored in ventilated dry place.