Zinc sulfate monohydrate (ZnSO4•H2O)-Powder

Characteristic




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.




Chemical formula:ZnSO4

Molar mass: 161.47 g/mol (anhydrous);179.47 g/mol (monohydrate);287.53 g/mol (heptahydrate)

Appearance: white powder

Odor: odorless

Density: 3.54 g/cm3 (anhydrous);2.072 g/cm3 (hexahydrate)

Melting point: 680 °C (1,256 °F; 953 K) decomposes (anhydrous);100 °C (heptahydrate);70 °C, decomposes (hexahydrate)

Boiling point: 740 °C (1,360 °F; 1,010 K) (anhydrous);280 °C, decomposes (heptahydrate)

Solubility in water:57.7 g/100 mL, anhydrous (20 °C) (In aqueous solutions with a pH < 5)

Solubility alcohols

Magnetic susceptibility (χ):−45.0·10−6 cm3/mol

Refractive index (nD):1.658 (anhydrous), 1.4357 (heptahydrate)

  

Application

 

Zinc sulfate monohydrate is used in calico-printing, preserving wood and skins, electrolytes for zinc plating, bleaching paper and clarifying glue. It is also used as a chemical reagent, coagulant in the preparation of rayon, mordant in dyeing and as a zinc source in animal feeds. In medicine, it is used as an astringent and emetic. Further, it is a precursor to the pigment lithopone. In addition to this, it is used to supply zinc in fertilizers, agricultural sprays, in electrolytes for zinc plating and as a mordant in dyeing.