Zinc sulfate heptahydrate

Chemical properties

Colorless crystals, small needles, or granular, crystalline powder; without odor; astringent, metallic taste. Efflorescent in air. Solutions acid to litmus. Loses 7H2O at 280C. Soluble in water and glycerol; insoluble in alcohol.

The Uses of Zinc sulfate heptahydrate

Zinc sulfate heptahydrate is widely used as a coagulant in the production of rayon. It finds an application in the manufacturing of calico printing, wood preservation and lithopone. It is the source of zinc which is supplied in animal feeds, fertilizers and agricultural sprays. It is utilized as electrolytes for zinc plating and surface treating agents. It is also used as a mordant in dyeing, preservative for skin and leather and in medicine as an astringent and emetic.

The Uses of Zinc sulfate heptahydrate

Preparation of complexometric titrant

The Uses of Zinc sulfate heptahydrate

As mordant in calico-printing; preserving wood and skins; with hypochlorite for bleaching paper; manufacture of lithopone and other zinc salts; clarifying glue; electrodepositing Zn; also as reagent in analytical chemistry.

The Uses of Zinc sulfate heptahydrate

zinc sulfate is a cosmetic astringent and biocide produced through the reaction of sulfuric acid with zinc. It can cause irritation to the skin and mucous membranes, and may cause an allergic reaction.

The Uses of Zinc sulfate heptahydrate

Zinc sulfate (ZnSO4?7H2O) is also known as zinc vitriol or white copper. In addition to being used to make rayon, zinc sulfate is used as a wood preservative, a dietary supplement, an animal feed, and as a mordant to prevent dyes from running in printed textiles. It can also be used to stanch bleeding.

What are the applications of Application

Zinc sulfate heptahydrate is an anion channel blocker

Definition

ChEBI: A hydrate that is the heptahydrate form of zinc sulfate.

brand name

Verazinc (Forest).

General Description

Zinc sulfate heptahydrate has various industrial applications. It is widely employed as an electrolyte for zinc electroplating and for the storage of solar energy in various solar appliances. Its crystals exhibit diamagnetism.

Agricultural Uses

Zinc sulphate heptahydrate (ZnSO₄?7H₂O), also called white vitriol, is the most common form of zinc sulphate.
It forms zinc sulphate monohydrate above 70°C and anhydrous salt at 280°C, and is used as a mordant and a styptic (to check bleeding).

Industrial uses

Zinc sulfate (ZnSO₄·7H₂O) is a white powder, very soluble in water (i.e. 37% at 20 °C). Zinc sulfate is primarily used in base-metal flotation as a depressant for sphalerite. Zinc sulfate has been used to depress talc in by-product molybdenum circuit.

Safety Profile

Human poison by an unspecified route. Poison experimentally by subcutaneous, intravenous, and intraperitoneal routes. Moderately toxic by ingestion. Experimental reproductive effects. When heated to decomposition it emits toxic fumes of SOx and ZnO. See also ZINC SULFATE.

Purification Methods

Crystallise it from aqueous EtOH or dilute H2SO4 below 39o when it forms the heptahydrate, and between 39o and 70o it forms the hexahydrate, and above 70o the monohydrate is stable. The anhydrous salt is obtained from the hydrates by heating at 280o or lower temperatures in a current of dry air. It decomposes to ZnO and SO2 at 767o. The solubility of the heptahydrate in H2O is 5.88% at 0o, 61.92% at 30o, 66.61% at 35o and 70.05% at 39o.