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Int. J. Mol. Sci. 2003, 4(6), 326-334; doi:10.3390/i4060326

Electrical Conductivity along Phase Diagram of the Critical Mixture Isobutyric Acid – Water with Added (K+, Cl-) Ions

Laboratoire de Physique de la Matière Molle Département de Physique, Faculté des Sciences de Tunis, 1060 Tunisia
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Received: 16 January 2003 / Accepted: 16 April 2003 / Published: 31 May 2003
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Abstract

Three systems, isobutyric acid – water (I–W), “(I-W) + 5 10-4 M (KCl)” and “(IW) + 5 10-3 M (KCl)”, have been studied by measuring the electrical conductivity σ (Ω-1cm-1) along the coexistence curve in a single phase, as a function of the variations temperature T and composition X in acid. The coefficient σ is a temperature dependent parameter for ions, increasing as temperature is elevated. Contrary to the visconty, the electrical conductivity does not show any anomaly in the critical region.
Keywords: critical phenomena; mixture; coexistence curve; molecular organisation; electrical conductivity; order parameter; ions; phase transition critical phenomena; mixture; coexistence curve; molecular organisation; electrical conductivity; order parameter; ions; phase transition
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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MDPI and ACS Style

Cherif, E.; Bouanz, M. Electrical Conductivity along Phase Diagram of the Critical Mixture Isobutyric Acid – Water with Added (K+, Cl-) Ions. Int. J. Mol. Sci. 2003, 4, 326-334.

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