Zinc sulfate, Heptahydrate, ACS (Technical Grade)

Molecular formula: ZnSO4  7H20
Zinc sulfate is an inorganic compound and dietary supplement. As a supplement it is used to treat zinc deficiency and to prevent the condition in those at high risk. Side effects of excess supplementation may include abdominal pain, vomiting, headache, and tiredness.
 
It has the formula ZnSO4 as well as any of three hydrates. It was historically known as "white vitriol". All of the various forms are colourless solids. The heptahydrate form is commonly encountered.
 
Technical grade
USES OF ZINC SULPHATE:
Source of zinc for agricultural applications.
For making lithopone.
Used in electrolytes for zinc plating.
Used as a mordant in dyeing.
Used as a preservative for skins and leather.
Active ingredient in products for use as moss remover for paths and roofs (not for lawns).
 
Specification
Minimum Assay: 102.46%
Molecular Formula: ZnSO4•7H2O 
Molecular Weight: 287.46 g/mol
ZnSO4: <57.53%
Zinc (Zn): <23.3%
Copper (Cu): <1ppm
Nitrogen (Ni): <2ppm
Iron (Fe): <2ppm
Magnesium (Mn): <2ppm
Arsenic (As): <0.1ppm
Cadmium (Cd): <2ppm
Lead (Pb): <4ppm
Chloride (Cl): <15ppm
Mercury (Hg): < 0.1ppm
Selenium (Se): < 0.1ppm
pH (5%): 3.9 – 4.4