Relative permittivity data of binary mixtures containing 2-butanol, 2-butanone,and cyclohexane |
| |
Authors: | A Ghanadzadeh Gilani N Paktinat M Moghadam |
| |
Institution: | Department of Chemistry, Faculty of Science, University of Guilan, 41335 Rasht, Iran |
| |
Abstract: | Relative permittivity measurements were made on binary mixtures of (2-butanol + 2-butanone) and (2-butanol or 2-butanone + cyclohexane) for various concentrations at T = (298.2, 308.2, and 318.2) K. Some experimental results are compared with those obtained from theoretical calculations and interpreted in terms of homo- and heterogeneous interactions and structural effects. The molecular dipole moments were determined using Guggenheim–Debye method within the temperature range of (298.2 to 318.2) K. The variations of effective dipole moment and correlation factor, g, with the mole fraction in these materials were investigated using Kirkwood–Frohlich equation. The pure compounds showed a negative and small temperature coefficient of effective dipole moment. In order to obtain valuable information about heterogeneous interaction (interactions between the unlike molecules), the Kirkwood correlation factor, the Bruggeman dielectric factor and the excess permittivity were calculated. In order to predict the permittivity data of polar–apolar binary mixtures, five mixing rules were applied. |
| |
Keywords: | |
本文献已被 ScienceDirect 等数据库收录! |
|