Nickel sulfate is used in the laboratory.

Nickel sulfate occurs as the rare mineral retgersite, which is a hexahydrate.

All nickel sulfates are paramagnetic.

Columns used in polyhistidine-tagging, useful in biochemistry and molecular biology, are regenerated with nickel sulfate.

The nickel sulfate is sold, the recovered sulphuric acid is re-used to the tankhouse and the impurities are recycled back to the smelters.

Potassium and ammonium nickel langbeinite can be made from nickel sulfate and the other sulfates by evaporating a water solution at 85 C.

Sometimes, the skin will blister when it comes into contact with a cosmetic, detergent, solvent, or other chemical such as nickel sulfate or Balsam of Peru.

Basic nickel carbonate can be made by treating solutions of nickel sulfate with sodium carbonate, shown here for the basic carbonate:

Aqueous solutions of nickel sulfate reacts with sodium carbonate to precipitate nickel carbonate, a precursor to nickel-based catalysts and pigments.

Nickel(II) sulfate, or just nickel sulfate, usually refers to the inorganic compound with the formula NiSO(HO).

Addition of ammonium sulfate to concentrated aqueous solutions of nickel sulfate precipitates Ni(NH)(SO) 6HO.

Its products include copper cathode, sulfuric acid, copper rod, bare copper wire, gold, silver, platinum, palladium, selenium, tellurium, bismuth, copper sulfate and nickel sulfate.

Several anomalous features of the adsorption isotherms obtained with tetrachloroethylene and trichlorofluoromethane on anhydrous nickel sulfate at 20.0, 5.8, and −7.5 °C, have been explained using a parallel plate pore model.

Double metal sulfates include ammonium cobaltous sulfate, ferrous diammonium sulfate, ammonium nickel sulfate which are known as Tutton's salts and ammonium ceric sulfate.

The company operates a single cluster of open-pit and underground mines producing mainly copper as well as byproducts such as precious metals from anode slimes, nickel sulfate, sulfuric acid, magnetite, and vermiculite.

The pane is one of more than 200 of which that have fallen from Waterfront Place since 1990, due to an impurity of nickel sulfate in the glass, which causes the glass to expand and shatter when it gets hot.