Standard enthalpies of formation of uranium compounds VII. UF3 and UF4 (by solution calorimetry)

https://doi.org/10.1016/S0021-9614(81)80025-0Get rights and content

Enthalpies of solution of UF3 and UF4 in a mixed aqueous solvent containing sulphuric acid, boric acid, and ceric sulphate have been measured calorimetrically. Together with measurements of the enthalpy of solution of γ-UO3 and U3O8 in the same solution, the standard enthalpies of formation of solid UF3 and UF4 have been derived: ΔHfo(UF3,s,298.15K)=(1508.5±5.5)kJmol1;ΔHfo(UF4,s,298.15K)=(1920.0±3.7)kJmol1.

The values differ considerably from literature values.

References (8)

  • JohnsonG.K.

    J. Chem. Thermodynamics

    (1979)
  • CordfunkeE.H.P. et al.

    J. Chem. Thermodynamics

    (1975)
  • CordfunkeE.H.P. et al.

    J. Chem. Thermodynamics

    (1981)
  • SettleJ.L. et al.

    J. Phys. Chem.

    (1963)
There are more references available in the full text version of this article.

Cited by (18)

  • The U-F system

    2020, Comprehensive Nuclear Materials: Second Edition
  • The u-f system

    2012, Comprehensive Nuclear Materials
  • 2.06 - The U–F System

    2012, Comprehensive Nuclear Materials: Volume 1-5
  • The Actinides

    2004, Comprehensive Coordination Chemistry II
View all citing articles on Scopus
View full text