Sodium phosphide

Sodium phosphide
Names
Other names
sodium phosphide,
trisodiophosphine
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.031.834 Edit this at Wikidata
EC Number
  • 235-031-0
UNII
  • InChI=1S/3Na.P/q3*+1;-3 checkY
    Key: FHHBFSHDCCEUKM-UHFFFAOYSA-N checkY
  • InChI=1/3Na.P/q3*+1;-3
    Key: FHHBFSHDCCEUKM-UHFFFAOYAE
  • [Na+].[Na+].[Na+].[P-3]
Properties
Na3P
Molar mass 99.943 g/mol
Appearance red crystals
Density 1.74 g/cm3
Melting point 650 °C (1,202 °F; 923 K)
hydrolysis
Solubility insoluble in liquid CO2
Structure
hexagonal
a = 4.9512 Å
c = 8.7874 Å
around P 5 near neighbours, trigonal bipyramid [1]
Related compounds
Other anions
 sodium arsenide
sodium nitride
Other cations
 aluminium phosphide
lithium phosphide
potassium phosphide
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Sodium phosphide is the inorganic compound with the formula Na3P. It is a black solid. It is often described as Na+ salt of the P3− anion.[2] Na3P is a source of the highly reactive phosphide anion. It should not be confused with sodium phosphate, Na3PO4.

In addition to Na3P, five other binary compositions of sodium and phosphorus are known: NaP, Na3P7, Na3P11, NaP7, and NaP15.[3]

  1. ^ Dong, Y; Disalvo, F.J (2005). "Reinvestigation of Na3P based on single-crystal data". Acta Crystallographica Section E. 61 (11): i223–i224. Bibcode:2005AcCrE..61I.223D. doi:10.1107/S1600536805031168.
  2. ^ Yunle, G; Fan, G; Yiate, Q; Huagui, Z; Ziping, Y (2002). "A solvothermal synthesis of ultra-fine iron phosphide". Materials Research Bulletin. 37 (6): 1101–1106. doi:10.1016/S0025-5408(02)00749-3.
  3. ^ Inorganic Chemistry, Egon Wiberg, Arnold Frederick Holleman Elsevier 2001 ISBN 0-12-352651-5