Chemistry:Gadolinium monosulfide
From HandWiki
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| Names | |
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| Other names
Gadolinium (II) sulfide
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| 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
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Samarium monosulfide |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | |
| Infobox references | |
Gadolinium monosulfide is a binary inorganic compound of gadolinium and sulfur with the chemical formula GdS.[1][2]
Synthesis
Heating stoichiometric amounts of pure substances in an inert atmosphere:
- Gd + S → GdS
It can be formed in a reaction between carbon, gadolinium(III) oxide, and gadolinium sesquisulphide:[3]
- Gd
2O
3 + 2Gd
2S
3 + 3C → 6GdS + 3CO
- Gd
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
- ↑ "Gadolinium monosulfide" (in en). NIST. https://webbook.nist.gov/cgi/formula?ID=C12134746.
- ↑ "Gadolinium Sulfide" (in en). American Elements. https://www.americanelements.com/gadolinium-sulfide-12134-74-6.
- ↑ Peshev, P.; Bliznakov, G.; Toshev, A. (April 1968). "On the preparation and some physical properties of gadolinium sesquisulphide and gadolinium monosulphide". Journal of the Less Common Metals 14 (4): 379–386. doi:10.1016/0022-5088(68)90161-6. https://www.sciencedirect.com/science/article/abs/pii/0022508868901616. Retrieved 30 July 2024.
- ↑ Predel, B. (1996). "Gd-S (Gadolinium-Sulfur)". Ga-Gd – Hf-Zr. Landolt-Börnstein - Group IV Physical Chemistry f: 1–2. doi:10.1007/10501684_1447. ISBN 3-540-60344-1. https://materials.springer.com/lb/docs/sm_lbs_978-3-540-44996-6_1447.
- ↑ Donnay, Joseph Désiré Hubert (1978) (in en). Crystal Data: Inorganic compounds 1967-1969. National Bureau of Standards. p. C-70. https://books.google.com/books?id=QZkhAQAAMAAJ&dq=Gadolinium+monosulfide+GdS&pg=RA6-PA70. Retrieved 30 July 2024.
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