Names | |
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Other names Dipromethium trisulfide | |
Identifiers | |
3D model (JSmol) | |
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Properties | |
Pm2S3 | |
Molar mass | 386 g·mol−1 |
Appearance | garnet red crystals |
Density | g/cm3 |
Structure | |
orthorhombic | |
Related compounds | |
Related compounds | Lanthanum(III) sulfide |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). |
Promethium(III) sulfide is a binary inorganic compound with the chemical formula Pm2S3.
The compound can be prepared by reacting promethium and sulfur in stoichiometric amounts at 500 °C:[ citation needed ]
The compound forms garnet red crystals of the orthorhombic system, space group I43d [1] and exists in α and β forms. [2]