Potassium phosphide

Crystal structure of potassium phosphide (K3P)
Names
Other names
  • Tripotassium;phosphanide
  • Tripotassium;phosphorus(3-)
  • Tripotassium phosphide
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.040.004 Edit this at Wikidata
EC Number
  • 244-021-5
UNII
  • InChI=1S/3K.P/q3*+1;-3
    Key: YCIITCDBMPCIPR-UHFFFAOYSA-N
  • [P-3].[K+].[K+].[K+]
Properties
K3P
Molar mass 148.269 g mol−1
Appearance White crystalline solid or powder
Thermochemistry[1]
49.8 J mol−1 K−1
-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).

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]

Applications

Potassium phosphide is used in high power, high frequency applications and also in laser diodes.[2]

References

  1. ^ 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.
  2. ^ a b Elements, American. "Potassium Phosphide". American Elements. Retrieved 2022-08-29.
  3. ^ "POTASSIUM PHOSPHIDE | CAMEO Chemicals | NOAA". cameochemicals.noaa.gov. Retrieved 2022-08-29.
  4. ^ 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.