Viscoelastic, Surface, and Volumetric Properties of Ionic Liquids [BMIM][OcSO4], [BMIM][PF6], and [EMIM][MeSO3]

详细信息    查看全文

• 作者：Manish Pratap Singh ; Satish Kumar Mandal ; Yogendra Lal Verma ; Abhishek Kumar Gupta ; Rajendra Kumar Singh ; Suresh Chandra
• 刊名：Journal of Chemical & Engineering Data
• 出版年：2014
• 出版时间：August 14, 2014
• 年：2014
• 卷：59
• 期：8
• 页码：2349-2359
• 全文大小：418K
• ISSN：1520-5134

文摘

Thermophysical properties viz. surface tension, viscosity, density, and ultrasonic velocity of three ionic liquids 1-butyl-3-methyl imadazolium octyl sulfate [BMIM][OcSO₄], 1-butyl-3-methyl imadazolium hexafluorophosphate [BMIM][PF₆], and 1-ethyl-3-methyl imadazolium methanesulfonate [EMIM][MeSO₃] have been measured in a wide temperature range. Experimental data so obtained have been used to calculate isentropic compressibility, isothermal expansion coefficient, surface entropy, surface enthalpy, and critical temperature (temperature where the distinction between liquid and gas phase vanishes and the surface tension tends to zero). Structure鈥損roperty correlation for different ILs is also discussed.