Please use this identifier to cite or link to this item: http://hdl.handle.net/10553/48578
Title: Thermodynamic properties of (a pentyl ester plus a n-alkane). XIV. The H-m(E) and V-m(E) for (an ester plus a n-alkane)
Authors: Chaar, M. 
Ortega, J. 
Toledo-Marante, F. J. 
González, C.
Keywords: Excess Molar Volumes
Binary-Mixtures
Enthalpies
298.15-K
Pentadecanoate, et al
Issue Date: 2001
Publisher: 0021-9614
Journal: Journal of Chemical Thermodynamics 
Abstract: This paper presents experimental data for the excess molar enthalpies HmE and excess molar volumes VmE at T = 298.15 K and atmospheric pressure for 21 binary mixtures consisting of one of three pentyl esters (ethanoate, propanoate, and pentanoate) and one of seven odd n-alkanes (from pentane to heptadecane). The results have shown the mixing of these mixtures to be endothermic, with HmE varying uniformly with the n-alkane chain length. The variation of VmE was also found to be uniform, with contraction effects observed for the mixtures that contained low molecular-weight hydrocarbons, and increasing with the pentyl ester chain length. Different group-contribution theories were used to calculate the excess properties for (an ester + an n-alkane). Comparison of the calculated and experimental results revealed that, in most cases, the differences increased with the molecular weight of the components. However, the differences for the calculated values of the excess volumes using the model of Nitta et al. decreased with n-alkane chain length but increased with ester chain length, the mean differences for the excess volumes being larger than 20 per cent. © 2001 Academic Press.
URI: http://hdl.handle.net/10553/48578
ISSN: 0021-9614
DOI: 10.1006/jcht.2000.0798
Source: Journal Of Chemical Thermodynamics[ISSN 0021-9614],v. 33 (6), p. 689-710
Appears in Collections:Artículos
Show full item record

SCOPUSTM   
Citations

8
checked on Jan 29, 2023

WEB OF SCIENCETM
Citations

8
checked on Feb 20, 2022

Page view(s)

32
checked on Jan 8, 2023

Google ScholarTM

Check

Altmetric


Share



Export metadata



Items in accedaCRIS are protected by copyright, with all rights reserved, unless otherwise indicated.