Acoustical spectrometry of aqueous solutions: Molecular dynamics and fast kinetics

U. Kaatze

doi:doi:10.1051/jp4:2005129008

Numéro		J. Phys. IV France Volume 129, October 2005


Page(s)		33 - 39
DOI		https://doi.org/10.1051/jp4:2005129008

J. Phys. IV France 129 (2005) 33-39
DOI: 10.1051/jp4:2005129008

Acoustical spectrometry of aqueous solutions: Molecular dynamics and fast kinetics

U. Kaatze

Drittes Physikalisches Institut, Georg-August-Universität, Bürgerstr. 42-44, 37073 Göttingen, Germany

Abstract
A survey is given on some applications of broadband acoustical spectrometry of liquids, with particular emphasis on aqueous systems. Various relaxation phenomena occurring in the frequency range between about 10 kHz and 10 GHz are discussed in the light of elementary molecular processes, including thermoelastic and viscoinertial effects, conformational isomerizations, associations, ion-molecule complexations, and precritical concentration fluctuations.