Volumetric properties of binary liquid mixtures of alcohols with 1,2-dichloroethane at different temperatures and atmospheric pressure
Volumetric properties of binary liquid mixtures of alcohols with 1,2-dichloroethane at different temperatures and atmospheric pressure
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DOI：
10.1016/j.tca.2012.05.004
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发表时间：
2012-09-10
影响因子：
3.5
通讯作者：
Tafat-Igoudjilene, Ouahiba
中科院分区：
文献类型：
--
作者：
Daoudi, Hadda;Kaci, Ahmed Ait;Tafat-Igoudjilene, Ouahiba
本文在常压、全组成和288.15-313.15K温度范围内，测定了1，2-二氯乙烷（DCE）与2-丙醇、2-丁醇、2-戊醇、2-己醇和2-辛醇二元混合物的实验密度。从这些结果，过量摩尔体积，V-E，已计算和Redlich-Kister多项式方程拟合。用Redlich-Kister多项式方程的A（i）系数计算了无限稀释时的偏摩尔体积（V）/bar（infinity）（i）和过量偏摩尔体积（V）/bar（E.infinity）（i）。对于所有的系统，V-E值是积极的，在整个组成范围内，并在所有的研究温度。这些属性的变化与组成的二元混合物中的组分和结构效应的分子之间的相互作用进行了讨论。(C)2012爱思唯尔有限公司版权所有。
In this work, the experimental densities of binary mixtures of 1,2-dichloroethane (DCE) with 2-propanol, 2-butanol, 2-pentanol, 2-hexanol or 2-octanol have been measured under atmospheric pressure, at the whole composition and in the temperature range of 288.15-313.15K. From these results, excess molar volumes, V-E, have been calculated and fitted to Redlich-Kister polynomial equation. Partial molar volumes and excess partial molar volumes, at infinite dilution, (V) over bar (infinity)(i) and (V) over bar (E.infinity)(i) respectively, have also been calculated using the A(i) coefficients of Redlich-Kister polynomial equation. For all the systems, the values of V-E are positive over the whole composition range and at all investigated temperatures. The variation of these properties with the composition of the binary mixtures is discussed in terms of molecular interactions between components and structural effects. (C) 2012 Elsevier B.V. All rights reserved.