Excess molar enthalpies of dichloropropane + n-alkane mixtures : Study on the effect of increasing the chain length of the n-alkane and the influence of the chlorine position

被引：0

作者：

Mato M.M. ^{[1
,2
]}

Fernández J. ^{[1
]}

Legido J.L. ^{[2
]}

Paz Andrade M.I. ^{[1
]}

机构：

[1] Departamento de Física Aplicada, Campus Universitario, Universidad de Santiago

[2] Departamento de Física Aplicada, Facultad de Ciencias, Universidad de Vigo

来源：

Journal of Thermal Analysis and Calorimetry | 2010年 / 101卷 / 3期

关键词：

Alkane; Dichloropropane; DISQUAC; Excess molar enthalpies; UNIFAC;

D O I：

10.1007/s10973-010-0732-x

中图分类号：

学科分类号：

摘要：

We have determined the excess molar enthalpies HmE at 298.15 K and normal atmospheric pressure for the binary mixtures containing dichloropropane and n-alkane [{xCH2ClCHClCH3 + (1-x) C n H2n+2 (n = 6, 8, 10, 12)} and {xCH2ClCH 2CH2Cl + (1-x) C n H2n+2 (n = 8, 10)}] using a Calvet microcalorimeter. The HmE values for all the mixtures show endothermic behaviour for the whole composition range. The Redlich-Kister equation was used to correlated the experimental values. The experimental excess molar enthalpies were examined on basis of the DISQUAC group-contribution model and the UNIFAC group-contribution method using the version considered by Larsen et al. The experimental and calculated results are discussed in terms of molecular interactions and the proximity effect. © 2010 Akadémiai Kiadó, Budapest, Hungary.

引用

页码：1121 / 1125

页数：4

共 17 条

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