Lutetium phosphide

Lutetium phosphide is an inorganic compound of lutetium and phosphorus with the chemical formula LuP.[3][4] The compound forms dark crystals, does not dissolve in water.

Lutetium phosphide
Other names
3D model (JSmol)
ECHA InfoCard 100.031.588 Edit this at Wikidata
EC Number
  • InChI=1S/Lu.P
  • [Lu+3].[P-3]
Molar mass 205.94[2]
Appearance Dark crystals
Density 8,1
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).


Heating powdered lutetium and red phosphorus in an inert atmosphere or vacuum:


It can also be formed in the reaction of lutetium and phosphine.

Physical propertiesEdit

Lutetium phosphide forms dark cubic crystals, space group Fm3m, cell parameters a = 0.5533 nm, Z = 4.[5]

Stable in air, does not dissolve in water and reacts actively with nitric acid.


The compound is a semiconductor used in high power, high-frequency applications, and in laser diodes.[6]

Also used in gamma radiation detectors due to its ability to absorb radiation.


  1. ^ EINECS: European Inventory of Existing Commercial Chemical Substances. Office for Official Publications of the European Communities. 1987. p. 591. ISBN 978-92-825-7507-9. Retrieved 12 December 2021.
  2. ^ "Landolt-Börnstein Substance / Property Index". Retrieved 12 December 2021.
  3. ^ Toxic Substances Control Act (TSCA) Chemical Substance Inventory. Cumulative Supplement to the Initial Inventory: User Guide and Indices. United States Environmental Protection Agency. Office of Toxic Substances. 1980. p. 176. Retrieved 12 December 2021.
  4. ^ "Lutetium Phosphide". American Elements. Retrieved 12 December 2021.
  5. ^ Singh, Sanjay Kumar (2019). High Pressure Properties of Lutetium Monopnictides (LuX, X = N, P, As) Theoretical Study at High Pressure : Phase Transition, Electronic and Thermal Properties of LuN, LuP and LuAs Compounds (1. Auflage ed.). Saarbrücken: Scholar's Press. ISBN 9786138913924. Retrieved 12 December 2021.
  6. ^ "CAS 12032-05-2 Lutetium Phosphide - Alfa Chemistry". Retrieved 12 December 2021.