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S.A. Markarian, M. Stockhausen

A Dielectric Relaxation Study of Lithium Salt Solutions in Dimethylsulfoxide

The dielectric spectra of LiCl, LiClO₄ and LiNO₃ in dimethylsulfoxide (DMSO) have been measured from some MHz to 72 GHz at 20°C. For the lower salt concentration range (< 0.5 mol/l) the relaxational contribution to the spectrum (apart from the conductivity contribution) is described by two Debye terms, whereas for higher concentrations (up to 1 mol/l) one Debye plus one (higher frequency) Cole-Davidson (CD) term is used. The lower frequency relaxation is likely to be due to solvent shared ionic species. The higher frequency relaxation is ascribed to practically unaffected solvent.

Zeitschrift für Physikalische Chemie, Oldenbourg Wissenschaftsverlag

Print ISSN: 0942-9352
Volume: 214, 02/2000
Pages: 139

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