Ternary and constituent binary excess molar enthalpies of {1,2-dichloropropane + 2-pentanol + 3-pentanol} at T=298.15K
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- 作者：Moon-Gab Kim (1)
- 关键词：Excess Molar Enthalpy ; Ternary Mixture ; 1 ; 2 ; Dichloropropane ; 2 ; Pentanol ; 3 ; Pentanol ; Empirical Equation
- 刊名：Korean Journal of Chemical Engineering
- 出版年：2014
- 出版时间：February 2014
- 年：2014
- 卷：31
- 期：2
- 页码：315-321
- 全文大小：337 KB
- 作者单位：Moon-Gab Kim (1)
1. School of Nano & Materials Sciences and Engineering, Kyungpook National University, 386, Gajang-dong, Sangju, 742-711, Korea - ISSN：1975-7220
文摘
Excess molar enthalpies for the ternary system of {1,2-dichloropropane (1,2-DCP)+2-pentanol+3-pentanol} and their constituent binary mixtures {1,2-DCP+2-pentanol}, {1,2-DCP+3-pentanol}, and {2-pentanol+3-pentanol} have been measured over the whole range of composition using an isothermal micro-calorimeter with flow-mixing cell at T=298.15 K and atmospheric pressure. The experimental excess molar enthalpies of all the binaries and ternary mixture, including three pseudo-binary mixtures, are positive (endothermic effect) throughout the mole fraction range, except for the binary mixture {2-pentanol+3-pentanol} in which shows a small negative values over the entire composition range. The experimental binary H m, ij E data were fitted to Redlich-Kister equation, and the Cibulka and the Morris equations were employed to correlate the ternary H m, 123 E data. Several empirical equations for predicting ternary excess enthalpies from constituent binary mixing data have been also examined and compared. The experimental results have been qualitatively discussed in terms of molecular interactions.