 Crystal structure of potassium phosphide (K3P)
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| Names | |
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Other names
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| Identifiers | |
3D model (JSmol)
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| ChemSpider | |
| ECHA InfoCard | 100.040.004 |
| EC Number |
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PubChem CID
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| UNII | |
CompTox Dashboard (EPA)
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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⦵298) |
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[edit]
Potassium phosphide can be synthesised by simply reacting the two elements together:[4]
Applications[edit]
Potassium phosphide is used in high power, high frequency applications and also in laser diodes.[2]
References[edit]
- ^ a b Sangster, James M. (2010-02-01). "K-P (Potassium-Phosphorus) System". Journal of Phase Equilibria and Diffusion. 31 (1): 68–72. doi:10.1007/s11669-009-9614-y. ISSN 1863-7345. S2CID 95780373.
- ^ a b Elements, American. "Potassium Phosphide". American Elements. Retrieved 2022-08-29.
- ^ "POTASSIUM PHOSPHIDE | CAMEO Chemicals | NOAA". cameochemicals.noaa.gov. Retrieved 2022-08-29.
- ^ 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". Zeitschrift für anorganische und allgemeine Chemie (in German). 309 (3–4): 210–225. doi:10.1002/zaac.19613090308. ISSN 0044-2313.