Solubility, Activity Coefficients and the Separation Factor of U/Pr Couple in Ga-In Alloys of Different Compositions in Fused LiCl-KCl-CsCl Eutectic
Alena Novoselova, Valeri Smolenski
Abstract
The equilibrium potentials of Pr 3+ /Pr couple, triple Pr–Ga–In and U-Ga-In alloys vs Cl − /Cl 2 reference electrode at the temperature range 723–1073 K in fused LiCl-KCl-CsCl eutectic were carried out by open-circuit potentiometry. The principle thermodynamic properties, solubility and the activity coefficients of praseodymium in gallium-indium alloys, containing 20, 40 and 70 wt% indium were determined. It was established a strong interaction between atoms of Pr and liquid alloys. The temperature dependences of the separation factor of U/Pr couple vs the composition of gallium-indium alloys were calculated.
Topics & Concepts
Eutectic systemIndiumGalliumPraseodymiumSolubilityActivity coefficientAnalytical Chemistry (journal)Solid solubilityThermodynamicsChemistryAtmospheric temperature rangeMaterials scienceInorganic chemistryPhysical chemistryCrystallographyMetallurgyChromatographyAqueous solutionMicrostructurePhysicsMolten salt chemistry and electrochemical processesNuclear Materials and PropertiesThermodynamic and Structural Properties of Metals and Alloys