Iron phosphide is a chemical compound of iron and phosphorus, with a formula of FeP.<[1] Its physical appearance is grey needles.
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3D model (JSmol)
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PubChem CID
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CompTox Dashboard (EPA)
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| Properties | |
| FeP | |
| Molar mass | 86.819 g·mol−1 |
| Density | 6.74 g/cm3 |
| Melting point | 1,100 °C (2,010 °F; 1,370 K) |
| Insoluble in water | |
| Solubility | soluble in nitric acid, HF, aqua regia insoluble in dilute acid, alkalis |
| Structure[1] | |
| MnP type (Orthorhombic) | |
| Pnma (No. 62) | |
a = 519.1 pm, b = 309.9 pm, c = 579.2 pm
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Lattice volume (V)
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93.2 Å3 |
| Related compounds | |
Other cations
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Chromium phosphide Manganese phosphide Cobalt phosphide Tungsten phosphide Ruthenium phosphide |
Related compounds
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Fe2P; Fe3P |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Manufacturing of iron phosphide takes place at elevated temperatures, where the elements combine directly.[1] Iron phosphide reacts with moisture and acids producing phosphine (PH3), a toxic and pyrophoric gas.
Iron phosphide is a good electric and heat conductor.[2]
Below a Néel temperature of about 119 K, FeP takes on an helimagnetic structure.[3]
References
edit- ^ a b c Rundqvist, Stig; Sillén, Lars Gunnar; Timm, D.; Motzfeldt, K.; Theander, Olof; Flood, H. (1962). "Phosphides of the B31 (MnP) Structure Type". Acta Chemica Scandinavica. 16. Danish Chemical Society: 287–292. doi:10.3891/acta.chem.scand.16-0287. ISSN 0904-213X.
- ^ Vereshchagin, Oleg S.; Pankin, Dmitrii V.; Smirnov, Mikhail B.; Vlasenko, Natalia S.; Shilovskikh, Vladimir V.; Britvin, Sergey N. (February 2021). "Raman spectroscopy: A promising tool for the characterization of transition metal phosphides". Journal of Alloys and Compounds. 853: 156468. doi:10.1016/j.jallcom.2020.156468.
- ^ Chernyavskii, I. O.; Nikitin, S. E.; Onykiienko, Y. A.; Inosov, D. S.; Stahl, Q.; et al. (2020-08-24). "Incommensurate magnet iron monophosphide FeP: Crystal growth and characterization". Physical Review Materials. 4 (8). American Physical Society (APS): 083403. arXiv:2003.10968. Bibcode:2020PhRvM...4h3403C. doi:10.1103/physrevmaterials.4.083403. ISSN 2475-9953. S2CID 214623160.