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Spinodal Composition of the System Water + Chloroform + Acetic Acid at 25 °C

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Abstract

A theoretical spinodal curve for the system water + chloroform + acetic acid at 25 °C is derived using a lattice model for ternary amphiphilic solutions: rod-like molecules covering the bonds of the honeycomb lattice with three-body interactions between the molecular ends associated to the same lattice site. The molecular model is equivalent to the standard Ising model on the same lattice; its mean-field solution is the most appropriate for reproducing, by local fitting, the experimental data for the binodal composition. The derived spinodal curve is in very good agreement with the spinodal composition determined also in the present work from the measured diffusion coefficients recently reported for the same system.

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Authors and Affiliations

  1. Institute of Atomic Physics, Măgurele-Bucharest, 077125, Romania

    Florin D. Buzatu

  2. Dept. of Theoretical Physics, Horia Hulubei National Institute for Physics and Nuclear Engineering, Măgurele-Bucharest, 077125, Romania

    Florin D. Buzatu

  3. Dept. of Physics, University of Bucharest, Măgurele-Bucharest, 050107, Romania

    Radu P. Lungu

  4. Dept. of Physics, Politehnica University, Bucharest, 060040, Romania

    Daniela Buzatu

  5. Dept. of Chemistry, Federico II University of Studies from Naples, Naples, 80126, Italy

    Roberto Sartorio & Luigi Paduano

Authors
  1. Florin D. Buzatu
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  2. Radu P. Lungu
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  3. Daniela Buzatu
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  4. Roberto Sartorio
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  5. Luigi Paduano
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Correspondence to Florin D. Buzatu.

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Buzatu, F.D., Lungu, R.P., Buzatu, D. et al. Spinodal Composition of the System Water + Chloroform + Acetic Acid at 25 °C. J Solution Chem 38, 403–415 (2009). https://doi.org/10.1007/s10953-009-9384-5

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  • DOI: https://doi.org/10.1007/s10953-009-9384-5

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