Chemistry:Potassium phosphide
From HandWiki
 Crystal structure of potassium phosphide (K3P)
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3D model (JSmol)
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| Properties | |
| K3P | |
| Molar mass | 148.269 g mol−1 |
| Appearance | White crystalline solid or powder |
| Thermochemistry[1] | |
Std molar
entropy (S |
49.8 J mol−1 K−1 |
Std enthalpy of
formation (ΔfH⦵298) |
-1.77 kJ mol−1 |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | |
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Potassium phosphide is an inorganic semiconductor compound with the formula K3P. It appears as a white crystalline solid or powder.[2] It reacts violently with water and is toxic via ingestion, inhalation and skin absorption.[3] It has a hexagonal structure.[1]
Synthesis
Potassium phosphide can be synthesised by simply reacting the two elements together:[4]
- [math]\ce{ 12K + P4 -> 4K3P }[/math]
Applications
Potassium phosphide is used in high power, high frequency applications and also in laser diodes.[2]
References
- ↑ 1.0 1.1 Sangster, James M. (2010-02-01). "K-P (Potassium-Phosphorus) System" (in en). Journal of Phase Equilibria and Diffusion 31 (1): 68–72. doi:10.1007/s11669-009-9614-y. ISSN 1863-7345. https://doi.org/10.1007/s11669-009-9614-y.
- ↑ 2.0 2.1 Elements, American. "Potassium Phosphide" (in en). https://www.americanelements.com/potassium-phosphide-20770-41-6.
- ↑ "POTASSIUM PHOSPHIDE | CAMEO Chemicals | NOAA". https://cameochemicals.noaa.gov/chemical/4327.
- ↑ Gnutzmann, Geert; Wilhelm Dorn, Friedrich; Klemm, Wilhelm (1961). "Das Verhalten der Alkalimetalle zu Halbmetallen. VII. Über einige A3B- und AB2-Verbindungen der schweren Alkalimetalle mit Elementen der V. Gruppe" (in de). Zeitschrift für anorganische und allgemeine Chemie 309 (3–4): 210–225. doi:10.1002/zaac.19613090308. ISSN 0044-2313. https://onlinelibrary.wiley.com/doi/10.1002/zaac.19613090308.
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