Thermodynamic properties of (an ethyl ester plus an n-alkane).: XI.: HME and VME values for {xCH3(CH2)uCOOCH2CH3+(1-x)CH3(CH2)2ν+1CH3} with u = 6, 7, 8, 10, 12, and 14, and ν = (1 to 7)

被引：14
|
作者：
Ortega, J [1 ]
Plácido, J [1 ]
Vidal, M [1 ]
机构：
[1] Univ Las Palmas Gran Canaria, Escuela Super Ingenieros Ind, Lab Termodinam & Fisicoquim, Las Palmas Gran Canaria 35003, Spain
来源：
JOURNAL OF CHEMICAL THERMODYNAMICS | 1999年 / 31卷 / 01期
关键词：
excess properties; mixtures; esters; alkanes;
D O I：
10.1006/jcht.1998.0435
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
Excess molar enthalpies and excess molar volumes at the temperature 298.15K were determined for a set of 42 binary mixtures of six ethyl alkanoates (from octanoate to hexadecanoate) and seven odd n-alkanes (from pentane to heptadecane). Both properties were represented by a suitable equation. All mixtures presented positive excess enthalpy values, mainly due to the energetic effects of the van der Waals forces and dipole-dipole attractions, with low, or even negative excess volume values, except for the case of the mixtures that contained high molar mass hydrocarbons. Calculated curves obtained from group-contribution models did not represent well the experimental data. (C) 1999 Academic Press.
引用
收藏
页码：151 / 176
页数：26
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