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Densities, Refractive Indexes, and Excess Properties of Mixing of the n-Hexanol + Ethanenitrile + Dichloromethane Ternary System at 25°C

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Abstract

Excess molar volumes and excess refractive indexes of the n-hexanol + ethanenitrile + dichloromethane system and the three corresponding binary mixtures have been determined at 25°C, by measuring densities and refractive indexes. Different expressions exist in the literature to predict these excess properties from binary data. The empirical correlation of Cibulka is shown to be the best in this system. An estimation of excess molar volumes is also evaluated using a modified Heller equation, which depends on the refractive indexes of the mixtures. Comparison of the predictions by different methods with the experimental values of the physical properties has been made.

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Authors and Affiliations

  1. Cátedra de Fisicoquímica, Dep. de Química. Facultad de Ingeniería U.N. del Comahue, Buenos Aires 1400, Neuquén (, 8300), Argentina

    S. Aznarez & M. A. Postigo

  2. Facultad de Ciencias Exactas y Tecnología, Cátedra de Fisicoquímica, Institute de Ingeniería Química, U. N. de Tucumán, Avda. Indpendencia 1800, S. M. de Tucumán (, 4000), Argentina

    G. C. Pedrosa, I. L. Acevedo & M. Katz

Authors
  1. S. Aznarez
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  2. M. A. Postigo
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  3. G. C. Pedrosa
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  4. I. L. Acevedo
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  5. M. Katz
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Aznarez, S., Postigo, M.A., Pedrosa, G.C. et al. Densities, Refractive Indexes, and Excess Properties of Mixing of the n-Hexanol + Ethanenitrile + Dichloromethane Ternary System at 25°C. Journal of Solution Chemistry 27, 949–964 (1998). https://doi.org/10.1023/A:1022667313669

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  • DOI: https://doi.org/10.1023/A:1022667313669

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