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Measurements of the Excess Properties and Vapor−Liquid Equilibria at 101.32 kPa for Mixtures of Ethyl Ethanoate + Alkanes (from C5 to C10)

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Laboratorio de Termodinámica y Fisicoquímica de Fluidos, Parque Científico-Tecnológico, Universidad de Las Palmas de Gran Canaria, Canary Islands, Spain, Departamento de Enxeñaría Química, Universidade de Vigo, 36310 Vigo, Spain, and Department of Chemical Engineering, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
†Part of the “Workshop in Memory of Henry V. Kehiaian”.
* Corresponding author. E-mail: [email protected]
‡Universidad de Las Palmas de Gran Canaria.
§Universidade de Vigo.
∥Ben-Gurion University of the Negev.
Cite this: J. Chem. Eng. Data 2010, 55, 12, 5519–5533
Publication Date (Web):October 19, 2010
Copyright © 2010 American Chemical Society

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    This work presents experimental values for the excess volumes (VmE) at 291.15, 298.15, 318.15, and 328.15 K; excess enthalpies (HmE) at 291.15, 298.15, and 318.15 K; and vapor−liquid equilibria (VLE) at 101.32 kPa for mixtures of ethyl ethanoate with each of six alkanes (from pentane to decane). The results for the six mixtures show that the thermal coefficient (∂VmE/∂T)p is positive and that (∂HmE/∂T)p presents changes in the sign. The Fredenslund method was applied to establish the thermodynamic consistency of the VLE data. Of the six systems considered here, only two, ethyl ethanoate + hexane and ethyl ethanoate + heptane, form minimum-boiling azeotropes, with coordinates (xaz, Taz/K) of (0.339, 338.15) and (0.834, 349.99), respectively. Simultaneous correlations carried out with the VLE and HmE data using a polynomic model with temperature-dependent coefficients were found to be acceptable. Application of two different versions of the UNIFAC model for the VLE data, one by Hansen et al. (Ind. Eng. Chem. Res.1991, 30, 2355) and the other by Gmehling et al. (Ind. Eng. Chem. Res.1993, 32, 178), gave similar estimations for the six systems, which we consider to be acceptable. The second method gave good predictions of HmE.

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    Table S1 comparing our experimental vapor pressures with values from the literature. This material is available free of charge via the Internet at

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