Please use this identifier to cite or link to this item: http://hdl.handle.net/10553/48581
Title: Thermodynamic properties of (a propyl ester + ann-alkane). XII
Authors: Ortega, J. 
Vidal, M.
Toledo-Marante, F. J. 
Plácido, J.
Keywords: Interaction Parameters
Unifac Model
Ethanoate
Mixtures
298.15-K
Issue Date: 1999
Publisher: 0021-9614
Journal: Journal of Chemical Thermodynamics 
Abstract: Excess molar enthalpies HmE and excess molar volumes VmE were determined at the temperature 298.15 K for 21 binary mixtures of three propyl esters (ethanoate, propanoate, and butanoate) and seven odd n-alkanes(pentaneto heptadecane). All the mixtures exhibited endothermic enthalpies which decreased quasi-exponentially with the ester chain length in the same proportion as their dipole effects. The variations of the excess molar volumes for these mixtures followed a similar decreasing trend, with contractions observed in the systems consisting of high molar mass esters and lowest n-alkanes. These effects have been interpreted on the basis of molecular interactions. The UNIFAC, DISQUAC, and Nitta-Chao models were used to estimate the thermodynamic properties considered, and yielded acceptable results. © 1999 Academic Press.
URI: http://hdl.handle.net/10553/48581
ISSN: 0021-9614
DOI: 10.1006/jcht.1999.0505
Source: Journal of Chemical Thermodynamics[ISSN 0021-9614],v. 31(8), p. 1025-1044
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