Effect of temperature on apparent molar properties of DBU based protic ionic liquid in aqueous and ethanolic solutions

被引：27

作者：

Jisha, K. J. ^{[1
]}

Singh, Dharmendra ^{[1
]}

Sharma, Gyanendra ^{[1
]}

Gardas, Ramesh L. ^{[1
]}

机构：

[1] Indian Inst Technol Madras, Dept Chem, Madras 600036, Tamil Nadu, India

来源：

JOURNAL OF MOLECULAR LIQUIDS | 2017年 / 231卷

关键词：

Ionic liquid; Apparent molar volume; Isentropic compressibility; Redlich-Mayer equation; ALKYL CHAIN-LENGTH; BINARY-MIXTURES; THERMOPHYSICAL PROPERTIES; VOLUMETRIC PROPERTIES; THERMODYNAMIC PROPERTIES; MOLECULAR-INTERACTIONS; ATMOSPHERIC-PRESSURE; 298.15; K; WATER; DENSITY;

D O I：

10.1016/j.molliq.2017.02.006

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Volumetric and ultrasonic properties of ionic liquid (IL) with molecular solvents are important parameter for elucidation of solute-solute and solute-solvent interactions occurring in solutions. In the present work, the density, p and speed of sound, u for binary solutions of the protic ionic liquid (1,8-diazabicyclo [5.4.0] undec-7-en-8-ium trifluromethane sulfonate), with molecular solvents like water and ethanol have been measured as a function of molality in temperature range (293.15 to 318.15) K and at atmospheric pressure. From the experimental data, apparent molar volume, vv, apparent molar isentropic compression, Ks,,, and limiting apparent molar expansion, E; have been calculated. Further, to understand the extent of interaction between studied IL and solvents the apparent molar properties at infinite dilution were analyzed by using Redlich-Mayer type equation. (C) 2017 Elsevier B.V. All rights reserved.

引用

页码：213 / 219

页数：7

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