Numéro |
J. Phys. IV France
Volume 137, November 2006
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Page(s) | 237 - 241 | |
DOI | https://doi.org/10.1051/jp4:2006137049 | |
Publié en ligne | 23 décembre 2006 |
J. Bodzenta, M. Dzida and T. Pustelny
J. Phys. IV France 137 (2006) 237-241
DOI: 10.1051/jp4:2006137049
Acoustic and volumetric studies of binary mixtures of 1,3-butanediol + 1-pentanol
E. ZorebskiUniversity of Silesia, Institute of Chemistry, Szkolna 9, 40-006 Katowice, Poland
(Published online 23 December 2006)
Abstract
The results of acoustic and volumetric investigations of binary
liquid mixtures of 1,3-butanediol with 1-pentanol at the
temperatures (298.15, 308.15, and 318.15) K are presented. Basing
on the phase speed of ultrasound values (measured by the
pulse-echo-overlap method at 2.18 MHz) and densities, the excess
values of the molar volume and isentropic compressibility
(volume-specific and molar), were calculated. Their composition
dependencies were expressed by Redlich-Kister polynomials. It turned
out that mixing of 1,3-butanediol with 1-pentanol, results in an
enhanced rigidity of the mixtures in comparison with that of the
pure components. What is more, this rigidity increases with
increasing temperature. At the same time the volume effects
(expansion) upon mixing increase with increasing temperature too.
The results are discussed in terms of the variations of the
structure and molecular interactions.
© EDP Sciences 2006