Nickel ammonium sulfates
A green, crystalline compound, soluble in water; used as a nickel electrolyte for electroplating.Also known as ammonium nickel sulfate; solid nickel salt.

[synonyms]
Ammonium nickel(+2) sulfate hexahydrate; ammonium nickel sulphate 6-hydrate; nickel ammonium sulfate; ammonium nickel sulfate-6-hydrate; di-ammonium nickel(ii) sulphate 6-hydrate; nickelous ammonium sulfate; ammonium nickel sulfate hexahydrate; nickel(ii) ammonium sulfate hexahydrate;
Diammonium nickel disulfate hexahydrate.

[properties]
Compound formula:h20n2nio14s2
Molecular weight :394.99
Appearance :green crystalline solid

Nickel ammonium sulfate is a green crystalline solid. Mildly toxic, carcinogenic.
When heated to decomposition it emits highly toxic fumes of metallic nickel, oxides of sulfur, and oxides of nitrogen. The primary hazard is the threat to the environment.Immediate steps should be taken to limit its spread to the environment. It is used for electroplating nickel