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Liquid–Liquid Equilibria of Some Aliphatic Alcohols + Disodium Hydrogen Citrate + Water Ternary Systems at 298.15 K

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Abstract

In this paper, the liquid–liquid equilibria for 1-propanol, 2-propanol or 2-methyl-2-propanol + disodium hydrogen citrate aqueous two-phase systems at 298.15 K were studied. The experimental binodal curves at 298.15 K are reported, and the parameters of the Merchuk equation, modified as a nonlinear function of mixed solvent properties and used for the simultaneous correlation of the experimental binodal data. Moreover, the salting-out ability of different salts and different alcohols with different anions is discussed. Additionally, experimental tie-line data are reported at 298.15 K. The generalized electrolyte-NRTL model of the mixed solvent electrolyte systems (e-NRTL) satisfactorily used for the correlation of the tie-line compositions; restricted binary interaction parameters were also obtained.

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Authors and Affiliations

  1. Department of Chemistry, Parsabad Mogan Branch, Islamic Azad University, Parsabad, Iran

    Ebrahim Nemati-Kande

  2. Department of Physical Chemistry, Faculty of Science, University of Tabriz, Tabriz, 51664, Iran

    Hemayat Shekaari

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  1. Ebrahim Nemati-Kande
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  2. Hemayat Shekaari
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Correspondence to Hemayat Shekaari.

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Nemati-Kande, E., Shekaari, H. Liquid–Liquid Equilibria of Some Aliphatic Alcohols + Disodium Hydrogen Citrate + Water Ternary Systems at 298.15 K. J Solution Chem 41, 1649–1663 (2012). https://doi.org/10.1007/s10953-012-9893-5

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  • DOI: https://doi.org/10.1007/s10953-012-9893-5

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