Chemical Thermodynamics of Thorium, Volume 11

image of Chemical Thermodynamics of Thorium, Volume 11

This volume is the eleventh in the OECD Nuclear Energy Agency (NEA) “Chemical Thermodynamics” series. It is based on a critical review of the thermodynamic properties of thorium, its solid compounds and aqueous complexes, initiated as part of the NEA Thermochemical Database Project Phase III (TDB III). The database system developed at the OECD/NEA Data Bank ensures consistency not only within the recommended data sets of thorium, but also amongst all the data sets published in the series. This volume will be of particular interest to scientists carrying out performance assessments of deep geological disposal sites for radioactive waste.


Thorium Group 17 (halogens) compounds and complexes

Nuclear Energy Agency

The thermal functions of ThF(g), ThF2(g) and ThF3(g) were calculated assuming the molecular parameters shown in Appendix E, Table E-1. These are based on the parameters selected by [1977WAG/SCH], in turn derived principally from the estimates by [1973KRA/MOR]. No electronic contributions have been included, leading to considerable uncertainties in the thermal functions, especially for the monofluoride. The selected values, with uncertainties estimated by this review


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