Praseodymium monosulfide
Chemical compound
From Wikipedia, the free encyclopedia
Praseodymium monosulfide is a binary inorganic chemical compound of praseodymium metal and sulfur with the chemical formula PrS.[1][2]
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| Names | |
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| IUPAC name
sulfanylidenepraseodymium(1+) | |
| Other names
Praseodymium(II) sulfide | |
| Identifiers | |
3D model (JSmol) |
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| Properties | |
| PrS | |
| Molar mass | 172.97 g·mol−1 |
| Appearance | Crystalline solid |
| Density | 6.1 g/cm3 |
| Melting point | 2,230 °C (4,050 °F; 2,500 K) |
| Related compounds | |
Related compounds |
Samarium monosulfide |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Synthesis
Fusion of stoichiometric amounts of pure substances:
- Pr + S → PrS
Physical properties
Praseodymium monosulfide forms crystals of the cubic system, space group Fm3m, cell parameters a = 0.5727 nm, Z = 4, structurally isomorphous with NaCl.[3][4][5]
The compound melts at a temperature of 2230 °C and has a homogeneity range of PrS0.75–1.