Gadolinium monosulfide
Chemical compound From Wikipedia, the free encyclopedia
Gadolinium monosulfide is a binary inorganic compound of gadolinium and sulfur with the chemical formula GdS.[1][2]
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| Names | |
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| Other names
Gadolinium (II) sulfide | |
| Identifiers | |
3D model (JSmol) |
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| ChemSpider | |
PubChem CID |
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| Properties | |
| GdS | |
| Molar mass | 189.31 g·mol−1 |
| Appearance | Crystals |
| Density | 7.2 g/cm3 |
| Melting point | 2,300 °C (4,170 °F; 2,570 K) |
| Structure | |
| Cubic | |
| 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
Heating stoichiometric amounts of pure substances in an inert atmosphere:
- Gd + S → GdS
Also a reaction of gadolinium(III) oxide and gadolinium sesquisulphide can make it:[3]
- Gd2O3 + 2Gd2S3 + 3C → 6GdS + 3CO
Physical properties
Gadolinium monosulfide forms crystals of cubic system, space group Fm4m, unit cell parameter a = 0.5574 nm, Z = 4, isomorphous with NaCl.[4][5]
GdS melts congruently at 2300 °C.
References
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