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Journal of Solution Chemistry

, Volume 15, Issue 1, pp 55–68 | Cite as

Dielectric properties of electrolytes in 1-propanol

  • B. Gestblom
  • S. C. Mehrotra
  • J. Sjöblom
Article

Abstract

The dielectric properties of LiCl, CaCl2·2H2O, Ca(NO3)2·4H2O, Al(NO3)3·9H2O in 1-propanol solutions have been investigated using the dielectric time domain spectroscopy technique. The dielectric spectrum of 1-propanol in the 50 MHz-5GHz interval can be described by a single relaxation time. Addition of electrolyte leads to a lengthening of the mean relaxation time and a broadening of the spectrum. The LiCl solutions are characterized by a decrease in static permittivity\( \in _{\underset{\raise0.3em\hbox{$\smash{\scriptscriptstyle-}$}}{s} } \), while the hydrated 2:1 and 3:1 salts show an initial increase in ∈s. The data are discussed in terms of ion pairs, possible kinetic depolarization effects and a structuring influence by the hydrated cations on the propanol hydrogen bonded network.

Key words

Dielectric permittivity relaxation electrolyte 1-propanol hydration time domain spectroscopy (TDS) alcohol 

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Copyright information

© Plenum Publishing Corporation 1986

Authors and Affiliations

  • B. Gestblom
    • 1
  • S. C. Mehrotra
    • 1
  • J. Sjöblom
    • 2
  1. 1.Department of PhysicsUppsala UniversityUppsalaSweden
  2. 2.Institute for Surface ChemistryStockholmSweden

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