Strontium phosphide

Strontium phosphide is an inorganic compound of strontium and phosphorus with the chemical formula Sr
3P
2.[1][2] The compound looks like black crystalline material.[3]

Strontium phosphide
Names
Other names
Tristrontium diphosphide
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.032.422
EC Number
  • 235-678-9
UN number 2013
  • InChI=1S/2P.3Sr/q2*-3;3*+2
    Key: ATAJSUOOOWSVGL-UHFFFAOYSA-N
  • [P-3].[P-3].[Sr+2].[Sr+2].[Sr+2]
Properties
P2Sr3
Molar mass 324.8
Appearance Black crystalline material
Density 2.68 g/cm3
Decomposes in water
Structure
cubic
Related compounds
Other anions
 Calcium phosphide
Barium phosphide
Other cations
 Strontium nitride
Strontium arsenide
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

Synthesis

Heating strontium phosphate with soot in an arc furnace:

Reaction of strontium with red phosphorus at high temperature:[3]

Physical properties

Strontium phosphide forms black crystals.[3]

Thermally stable, melts at high temperatures.

Dangerous when wet, poison.[4]

Chemical properties

Decomposes with water releasing phosphine:[3]

Reacts with acids:

Uses

It is a highly reactive substance used as a reagent and in the manufacture of chemically reactive devices.[5]

References
  1. "Strontium Phosphide". American Elements. Retrieved 13 December 2021.
  2. Wang, Junjie; Hanzawa, Kota; Hiramatsu, Hidenori; Kim, Junghwan; Umezawa, Naoto; Iwanaka, Koki; Tada, Tomofumi; Hosono, Hideo (8 November 2017). "Exploration of Stable Strontium Phosphide-Based Electrides: Theoretical Structure Prediction and Experimental Validation". Journal of the American Chemical Society. 139 (44): 15668–15680. doi:10.1021/jacs.7b06279. PMID 29023114. Retrieved 13 December 2021.
  3. Ropp, Richard C. (31 December 2012). Encyclopedia of the Alkaline Earth Compounds. Newnes. p. 232. ISBN 978-0-444-59553-9. Retrieved 13 December 2021.
  4. Toxic Substances Control Act (TSCA) Chemical Substance Inventory. U.S. Government Printing Office. 1979. p. 11. Retrieved 13 December 2021.
  5. "STRONTIUM PHOSPHIDE | CAMEO Chemicals | NOAA". cameochemicals.noaa.gov. Retrieved 13 December 2021.
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