Article ID Journal Published Year Pages File Type
5412258 Journal of Molecular Liquids 2012 8 Pages PDF
Abstract
► Precise dielectric spectra for aqueous NaCl solutions covering the frequency range 0.2 ≤ ν /GHz ≤ 89 reveal the presence of a weak solute relaxation. ► This study provides first reliable experimental evidence for ion-cloud relaxation in aqueous 1:1 electrolytes. ► In addition to ion-cloud relaxation, the reorientation of solvent-shared ion pairs contributes to the solute mode. ► Consequences for the determination of association constants for weakly associating electrolytes are discussed. ► Improved effective hydration numbers, Zib(Na+), are presented for the cation.
Related Topics
Physical Sciences and Engineering Chemistry Physical and Theoretical Chemistry
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