Potassium amide

Potassium amide is an inorganic compound with the chemical formula KNH2, i.e. it is composed of a potassium cation, and the conjugate base of ammonia. Like other alkali metal amides, it is a white solid that hydrolyzes readily.

Potassium amide
Names
IUPAC name
Potassium amide
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.037.508
EC Number
  • 241-275-9
Properties
H2KN
Molar mass 55.121 g·mol−1
Appearance yellowish brown solid
Odor ammonia-like
Density 1.57 g/cm 3
Melting point 338 °C (640 °F; 611 K)
reacts
Solubility ammonia: 3.6 g/100 mL
Thermochemistry
Std enthalpy of
formation (ΔfH⦵298)
 -128.9 kJ/mol
Related compounds
Other cations
 Lithium amide
Sodium amide
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references

Production

Potassium amide is produced by the reaction of liquid ammonia with potassium.[1]

References
  1. O. Glemser, H. Sauer (1963). "Silver Amide". In G. Brauer (ed.). Handbook of Preparative Inorganic Chemistry, 2nd Ed. 1. NY,NY: Academic Press. p. 1043.


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