Samarium(III) arsenide
(Redirected fromSamarium arsenide)
| Names | |
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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 |
| EC Number |
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PubChemCID
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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 theirstandard state(at 25 °C [77 °F], 100 kPa).
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Samarium(III) arsenideis a binaryinorganic compoundofsamariumandarsenicwith the chemical formulaSmAs.[1][2]
Synthesis
[edit]Samarium arsenide can be synthesised by heating of pure substances in vacuum:
- Sm + As → SmAs
Physical properties
[edit]Samarium arsenide forms crystals of acubic system,[3]space groupFm3m,cell parameters a = 0.5921 nm, Z = 4, ofNaCl-structure.[4][5]
The compoundmelts congruentlyat 2257 °C.
Uses
[edit]SmAs is used as asemiconductorand 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.Retrieved11 January2022.
- ^"mp-1738: SmAs (cubic, Fm-3m, 225)".materialsproject.org.Retrieved11 January2022.
- ^NBS Monograph.National Bureau of Standards.1959. p. 68.Retrieved11 January2022.
- ^Predel, B. (1991)."As-Sm (Arsenic-Samarium) - SpringerMaterials".materials.springer.com.Retrieved11 January2022.
- ^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.Retrieved11 January2022.
- ^"Samarium Arsenide".American Elements.Retrieved11 January2022.