Potassium: lattice energies

All values of lattice energies are quoted in kJ mol-1.


  • KF:
    thermochemical cycle: 821 kJ mol-1
    calculated: 808 kJ mol-1


  • KCl:
    thermochemical cycle: 715 kJ mol-1
    calculated: 701 kJ mol-1


  • KBr:
    thermochemical cycle: 682 kJ mol-1
    calculated: 671 kJ mol-1


  • KI:
    thermochemical cycle: 649 kJ mol-1
    calculated: 632 kJ mol-1


  • KH:
    thermochemical cycle: 714 kJ mol-1
    calculated: 699 kJ mol-1


  • K2O:
    thermochemical cycle: (no value) kJ mol-1
    calculated: 2238 kJ mol-1
  • KO2:
    thermochemical cycle: 725 kJ mol-1
    calculated: 741 kJ mol-1
  • KO3:
    thermochemical cycle: (no value) kJ mol-1
    calculated: 697 kJ mol-1


  1. H.D.B. Jenkins - personal communication. I am grateful to Dr Don Jenkins (University of Warwick, UK) who provided the lattice energy data, which are adapted from his contribution contained within reference 2.
  2. H.D.B. Jenkins in CRC Handbook of Chemistry and Physics 1999-2000 : A Ready-Reference Book of Chemical and Physical Data (CRC Handbook of Chemistry and Physics, D.R. Lide, (ed.), CRC Press, Boca Raton, Florida, USA, 79th edition, 1998.

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potassium atomic number