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BY-NC-ND 3.0 license Open Access Published by De Gruyter June 2, 2014

Molar Volumes in Molten KCl, RbCl, TlCl, KCl-TlCl, and RbCl-TlCl

E.R. Buckle and P.E. Tsaoussoglou


Densities in molten KCl, RbCl, TlCl, KCl-TlCl and RbCl-TlCl at various temperatures (t °C) were measured to within ±0.1% by iridium pyknometry. For the pure melts the results fit empirical equations of the form ρ=a-bt. The molar volumes at the melting points were derived and tested against other melting-point data for thermodynamic consistency. In the mixtures the volumes deviate from additivity in both directions, and it is again evident that the sign and magnitude of the deviation at a given composition are sensitive to temperature. In the present systems the negative deviations are much less persistent at high temperatures than in KBr -TIBr.

Received: 1972-10-2
Published Online: 2014-6-2
Published in Print: 1972-12-1

© 1946 – 2014: Verlag der Zeitschrift für Naturforschung

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

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