Samarium(III) arsenide is a binary inorganic compound of samarium and arsenic with the chemical formula SmAs.[1][2]
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| Other names
samarium(III) arsenide, arsanylidynesamarium
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| Identifiers | |
3D model (JSmol)
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| ECHA InfoCard | 100.032.266 |
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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).
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Synthesis
editSamarium arsenide can be synthesised by heating of pure substances in vacuum:
- Sm + As → SmAs
Physical properties
editSamarium 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
editSmAs is used as a semiconductor and in photo optic applications.[6]
References
edit- ^ 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. Retrieved 11 January 2022.
- ^ "mp-1738: SmAs (cubic, Fm-3m, 225)". materialsproject.org. Retrieved 11 January 2022.
- ^ NBS Monograph. National Bureau of Standards. 1959. p. 68. Retrieved 11 January 2022.
- ^ Predel, B. (1991). "As-Sm (Arsenic-Samarium) - SpringerMaterials". materials.springer.com. Retrieved 11 January 2022.
- ^ Iandelli, A. (November 1956). "Uber einige Verbindungen des Samariums vom NaCl-Typ". Zeitschrift für anorganische und allgemeine Chemie (in German). 288 (1–2): 81–86. doi:10.1002/zaac.19562880111. Retrieved 11 January 2022.
- ^ "Samarium Arsenide". American Elements. Retrieved 11 January 2022.