Copper(II) Sulfide

Copper(II) sulfide is an inorganic salt with the formula CuS. It can be found in nature as the mineral covellite. Copper(II) sulfide is one of many copper sulfur binary compounds. The compound is slightly conductive and has potential uses in photovoltaics and as a catalyst.

Synthesis
Copper(II) sulfide can be made by bubbling H 2 S gas through a solution with a copper(II) cation like basic copper carbonate or copper(II) sulfate.

Another method of creating copper(II) sulfide is melting a mixture of copper(I) sulfide and an excess of sulfur together.

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