Systematic investigation of variation in density of LiF-NaF-KF-UF₄ molten salt with composition and temperature

2026-08-08

PRE

Deep Chowdhury

Abhishek Sharma

D. Chattaraj

P. Ginishkumar

Pradeep Samui *

S.M. Bhojane

S.C. Parida

DOI：10.1016/j.molliq.2026.129852

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Abstract

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• Density of purified FLiNaK-UF4 measured using Archimedean displacement method. • Data are analyzed as function of temperature and UF4 composition. • Molar volume, thermal expansion coefficients for each mixture are calculated. • The results are compared and validated with RK model and Muggianu interpolation. • Non ideal mixing nature is explained using co-ordination environment in the melt.

Keywords:

Molten salt

Density

Molar volume

FLiNaK

UF4

Redlich-Kister model

FLiNaK-UF4

Systematic investigation of variation in density of LiF-NaF-KF-UF₄ molten salt with composition and temperature

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