Small volume determination of the viscosity-density product for ionic liquids using quartz crystal harmonics

N. Doy, G. McHale, P. Roach, M. I. Newton, C. Hardacre, R. Ge, R. W. Allen, J. M. MacInnes, M. R. Bown

Research output: Contribution to conferencePaperpeer-review

Abstract

Data for the physical properties of room temperature ionic liquids (RTIL) as a function of chemical composition is limited, owing to the expense and difficulty of producing large volumes of pure samples for characterization. In this work we demonstrate that the viscosity-density values, obtained using impedance analysis of a quartz crystal microbalance are consistent with those obtained using a viscometer and density meter, but only requires a sample volume two orders of magnitude smaller. We also demonstrate that the third harmonic yields closest correlation out of all the harmonics from the fundamental to the eleventh.
Original languageEnglish
DOIs
Publication statusPublished - 9 Sep 2008

Keywords

  • bandwidth
  • chemical engineering
  • impedance
  • liquids
  • pollution measurement
  • resonance
  • resonant frequency
  • temperature
  • testing

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