Cuprous Sulfide

Name:
Cuprous Sulfide
Detailed information:

M Formula:	Cu2S
Properties:
Black powder or lumps. D 5.52–5.82, mp approximately 1100 C. Soluble in nitric acid and ammonium hydroxide; insoluble in water. Occurs as the mineral chalcocite.
Derivation:
By heating cupric sulfide in a stream of hydrogen.
Grade:
Technical, single crystals.
Use:
Antifouling paints, solar cells, electrodes, solid lubricants, luminous paints, catalyst.