| Chemistry name: | cupric sulfide |
| M Formula: | CuS |
| Properties: | |
| Black powder or lumps. D 3.9–4.6, decomposes at 220C. Soluble in nitric acid; insoluble in water. Occurs as the mineral covellite. | |
| Derivation: | |
| By passing hydrogen sulfide gas into a solution of a copper salt. | |
| Hazard: | |
| Toxic by ingestion. | |
| Use: | |
| Antifouling paints, dyeing with aniline black, catalyst preparation. | |