| Chemistry name: | bismuth trisulfide |
| M Formula: | Bi2S3 |
| Properties: | |
| Blackish-brown powder. D 7.6–7.8, mp (decomposes). Soluble in nitric acid; insoluble in water. | |
| Derivation: | |
| (1) By melting bismuth and sulfur together. (2) By passing hydrogen sulfide into a soluble of a bismuth salt. (3) Occurs as the mineral bismuthinite. | |
| Use: | |
| Manufacturing bismuth compounds. | |