Thermodynamic Properties of a Series of Closely Related Ionic Liquids Based on 1-Alkyl-3-methylimidazolium Hydrosulfate

Chem. J. Chinese Universities ›› 2011, Vol. 32 ›› Issue (8): 1860.

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Thermodynamic Properties of a Series of Closely Related Ionic Liquids Based on 1-Alkyl-3-methylimidazolium Hydrosulfate

XU Zhi-Ce^1,2, WANG Jian-Ying², WANG Xiao-Ling², HU Yong-Qi^1,2*

1. The School of Chemical Engineering, Tianjin University, Tianjin 300072, China;
2. The School of Chemical and Pharmaceutical Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, China

Received:2010-09-07 Revised:2010-11-26 Online:2011-08-10 Published:2011-07-19
Contact: HU Yong-Qi E-mail:huyq@hebust.edu.cn
Supported by:
国家自然科学基金(批准号: 20776037)资助.

Abstract

Abstract: The densities of a series of ionic liquids [C4mim]HSO4 (1-butyl-3-methylimdazolium hydrosulfate), [C6mim]HSO4 (1-hexyl-3-methylimdazolium hydrosulfate), [C8mim]HSO4 (1-octyl-3-methylimdazolium hydrosulfate) and [C10mim]HSO4 (1-decyl-3-methylimdazolium hydrosulfate) were determined from T = (293.15 to 343.15) K. The coefficients of thermal expansion and molecular volume of the ionic liquids were calculated from the density results. Standard entropies and lattice energy of the IL were calculated from the experimental density values using Glasser’s equation. The thermodynamic properties of the ionic liquid were further discussed.

Key words: Ionic liquid, Density, Thermodynamics property, Glasser theory

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XU Zhi-Ce, WANG Jian-Ying, WANG Xiao-Ling, HU Yong-Qi*. Thermodynamic Properties of a Series of Closely Related Ionic Liquids Based on 1-Alkyl-3-methylimidazolium Hydrosulfate[J]. Chem. J. Chinese Universities, 2011, 32(8): 1860.

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Thermodynamic Properties of a Series of Closely Related Ionic Liquids Based on 1-Alkyl-3-methylimidazolium Hydrosulfate

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