Journal of Solution Chemistry

, Volume 39, Issue 4, pp 473–481 | Cite as

Experimental and Theoretic Study of the Dielectric Properties of Ethanol + Methanol Mixtures

  • Li-Jun Yang
  • Xiao-Qing Yang
  • Ka-Ma Huang
  • Hui Shang
  • Guo-Zhu Jia


The main objective of this work is to measure the complex permittivity of ethanol + methanol liquid solutions over the full composition range at the temperatures 293, 303 and 313 K by the resonant cavity perturbation method. Dielectric parameters were derived using mixture formulae, and the values of excess permittivity and excess inverse relaxation time were determined using these parameters. By comparing the calculated results to the experiment values it was found that the classical Debye equation needs to be modified to calculate the complex permittivity.


Binary mixture Permittivity Debye equation Mixture formula 


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Copyright information

© Springer Science+Business Media, LLC 2010

Authors and Affiliations

  • Li-Jun Yang
    • 1
  • Xiao-Qing Yang
    • 1
  • Ka-Ma Huang
    • 1
  • Hui Shang
    • 2
  • Guo-Zhu Jia
    • 1
    • 3
  1. 1.College of Electronics and Information EngineeringSichuan UniversityChengduP.R. China
  2. 2.State Key Laboratory of Heavy Oil ProcessingChina University of PetroleumBeijingP.R. China
  3. 3.College of Physics and Electronic EngineeringSichuan Normal UniversityChengduP.R. China

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