Solubility of Lanthanide Chlorides ( Ln Cl3) in Alkali Metal Chlorides ( M Cl): Thermodynamics and Electrical Conductivity of the M 3 Ln Cl6 Compounds |
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| Authors: | Marcelle Gaune-Escard and Leszek Rycerz |
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| Institution: | (1) école Polytechnique Universitaire de Marseille, Technop?le de Chateau Gombert, 13453 Marseille cedex 13, France, FR;(2) Institute of Inorganic Chemistry and Metallurgy of Rare Elements, Wroclaw University of Technology, 50-370 Wroclaw, Poland, PL |
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| Abstract: | Summary. Several compounds may exist in LnCl3–MCl mixtures. Those corresponding to the M
2
LnCl5 and MLn
2Cl7 stoichiometries are formed in a few systems only, with diverse stability strongly dependent on both the corresponding lanthanide
and alkali metal. On the other hand, M
3
LnCl6 that occur in most systems have a far larger stability range and melt congruently. These latter compounds were investigated
in the present work by differential scanning calorimetry and electrical conductivity measurements. The thermodynamic and transport
properties were correlated to structural features and related to the mechanism of compound formation.
Corresponding author. E-mail: Marcelle.Gaune-Escard@polytech.univ-mrs.fr
Received October 2, 2002; accepted November 6, 2002
Published online April 24, 2003
RID="a"
ID="a" This paper is dedicated to Professor H. Gamsj?ger on the occasion of his birthday |
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| Keywords: | , Electrical conductivity, Enthalpy, Heat capacity, Lanthanide chlorides, Phase transitions, |
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