Thermodynamic properties of stable states cerium compounds in fused 3LiCl-2KCl eutectic

Minghui Xu, Valeri Smolenski*, Qi Liu, Alena Novoselova, Kewei Jiang, Jing Yu, Jingyuan Liu, Rongrong Chen, Hongsen Zhang, Milin Zhang, Jun Wang

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)

Abstract

The interaction of oxygen and cerium-free ions in molten 3LiCl-2KCl eutectic in the temperature range of (723–823) K was studied by the method of potentiometric titration using YZME electrodes. Stable states of cerium compounds in the Ce–O system and the mechanism of interaction of Ce3+ with O2− ions have been established. The solubility constants of cerium oxychloride and oxide compounds at different temperatures were determined. Principal thermodynamic data of CeOCl and Ce2O3 were calculated. The Pourbaix (potential-pO2−) diagram was drawn and summarizes the properties of stable cerium species in the melt.

Original languageEnglish
Article number106260
JournalJournal of Chemical Thermodynamics
Volume152
DOIs
Publication statusPublished - Jan 2021
Externally publishedYes

Keywords

  • Cerium trichloride
  • Molten salt
  • Potentiometric titration
  • Pourbaix diagram
  • Thermodynamics

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