Chemistry:Samarium(III) arsenide
From HandWiki
| Names | |
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| Other names
samarium(III) arsenide, arsanylidynesamarium
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| Identifiers | |
3D model (JSmol)
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| EC Number |
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PubChem CID
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| Properties | |
| SmAs | |
| Molar mass | 225.28 |
| Appearance | Crystals |
| Density | 7.2 g/cm3 |
| Melting point | 2,257 °C (4,095 °F; 2,530 K) |
| Related compounds | |
Related compounds
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Neptunium arsenide |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | |
| Infobox references | |
Samarium(III) arsenide is a binary inorganic compound of samarium and arsenic with the chemical formula SmAs.[1][2]
Synthesis
Samarium arsenide can be synthesised by heating of pure substances in vacuum:
- Sm + As → SmAs
Physical properties
Samarium arsenide forms crystals of a cubic system,[3] space group Fm3m, cell parameters a = 0.5921 nm, Z = 4, of NaCl-structure.[4][5]
The compound melts congruently at 2257 °C.
Uses
SmAs is used as a semiconductor and in photo optic applications.[6]
References
- ↑ (in en) Toxic Substances Control Act (TSCA) Chemical Substance Inventory. Cumulative Supplement to the Initial Inventory: User Guide and Indices. United States Environmental Protection Agency. 1980. p. 301. https://books.google.com/books?id=fkkJPwbY93gC&dq=Samarium+arsenide&pg=RA3-PA301. Retrieved 11 January 2022.
- ↑ "mp-1738: SmAs (cubic, Fm-3m, 225)". materialsproject.org. https://materialsproject.org/materials/mp-1738/.
- ↑ (in en) NBS Monograph. National Bureau of Standards. 1959. p. 68. https://books.google.com/books?id=SUB7V7hqZTMC&dq=Samarium+arsenide&pg=RA1-PA68. Retrieved 11 January 2022.
- ↑ Predel, B. (1991) (in en). As-Sm (Arsenic-Samarium) - SpringerMaterials. https://materials.springer.com/lb/docs/sm_lbs_978-3-540-39444-0_242. Retrieved 11 January 2022.
- ↑ Iandelli, A. (November 1956). "Uber einige Verbindungen des Samariums vom NaCl-Typ" (in de). Zeitschrift für anorganische und allgemeine Chemie 288 (1–2): 81–86. doi:10.1002/zaac.19562880111. https://onlinelibrary.wiley.com/doi/10.1002/zaac.19562880111. Retrieved 11 January 2022.
- ↑ "Samarium Arsenide" (in en). American Elements. https://www.americanelements.com/samarium-arsenide-12255-39-9.
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