Nickel(II) Oxide is a light green solid and does not dissolve in water. Sometimes it is gray because all of the nickel is not in the +2 oxidation state. It is used to make alloys and other nickel compounds. It is also used in ceramics.

Nickel Chloride is an excellent water soluble crystalline Nickel source for uses compatible with chlorides. Nickel(II) chloride hexahydrate is a nickel salt that can be used as a catalyst. It is cost effective and can be used in a variety of industrial processes.

Nickel Carbonate is a light green crystalline substance, which is a water insoluble Nickel source that can easily be converted to other Nickel compounds, such as the oxide by heating (calcination).