Thermodynamic investigations of the NaI-CsI, KI-CsI, and NaF-CsI pseudo-binary systems

N. L. Scuro*, B. W.N. Fitzpatrick, E. Geiger, M. Poschmann, T. Dumaire, O. Beneš, M. H.A. Piro

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

Abstract

The present study describes the thermodynamic assessment of three pseudo-binary systems relevant to CsI solubility in molten iodide salts: KI-CsI, NaI-CsI, and NaF-CsI. The motivation for this study was to corroborate a single previously reported data set of the NaI-CsI system, resolve inconsistencies reported by two different data-sets of the KI-CsI system, and generate new experimental data on the NaF-CsI system. Equilibrium data for all systems were obtained using Differential Scanning Calorimetry. Thermodynamic treatments of the three pseudo-binary systems were revised using the CALPHAD method with the thermodynamic software FactSage and Thermochimica. Both experimental and computational investigations provide increased confidence in the thermochemical behaviour of CsI in Molten Salt Reactor nuclear systems.

Original languageEnglish
Article number107272
Number of pages12
JournalJournal of Chemical Thermodynamics
Volume193
DOIs
Publication statusPublished - 2024

Bibliographical note

Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.

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