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Advances in Molten Salts

ISSN:
1-56700-142-4 (Print)

Influence of complexing on temperature dependence of isobaric and isohoric heat capacities of LaCl3+NaCl and LaCl3+KCl Melts

V. Minchenko
Institute of Heigh-Temperature Electrochemistry, Ural Branch, Russian Academy of Sciences, S. Kovalevskaya 20, 620219 Ekatherinburg, Russia

M. Smirnov
Institute of Heigh-Temperature Electrochemistry, Ural Branch, Russian Academy of Sciences, S. Kovalevskaya 20, 620219 Ekatherinburg, Russia

I. Korzun
Institute of Heigh-Temperature Electrochemistry, Ural Branch, Russian Academy of Sciences, S. Kovalevskaya 20, 620219 Ekatherinburg, Russia

S. Vinogradov-Zhabrov
Institute of Heigh-Temperature Electrochemistry, Ural Branch, Russian Academy of Sciences, S. Kovalevskaya 20, 620219 Ekatherinburg, Russia

V. Khoklov
Institute of Heigh-Temperature Electrochemistry, Ural Branch, Russian Academy of Sciences, S. Kovalevskaya 20, 620219 Ekatherinburg, Russia

E. Filatov
Institute of Heigh-Temperature Electrochemistry, Ural Branch, Russian Academy of Sciences, S. Kovalevskaya 20, 620219 Ekatherinburg, Russia

Abstract

The enthalpy and the heat capacity at constant pressure of LaCl3+NaCl and LaCl3+KCl melts have been measured with Calvet-type microcalorimeter as a function of temperature and concentration. The isohoric heat capacity was calculated using the ultrasonic velocity data. The results obtained are interpreted in terms of the complexing of the melts. Keywords: melts, molten salt, heat capacity, complexing, ultrasound velocity.