par Mandel, Michel ;Jenard, André
Référence Bulletin des Sociétés chimiques belges, 67, 9-10, page (575-598)
Publication Publié, 1958
Article révisé par les pairs
Résumé : A new cell is described here which can be used to determine the dielectric constant of conducting liquids or solutions in the radio‐frequency range. This new cell features a nearly coaxial structure (low self‐induction) and a variable distance between the two parallel electrodes (discs). The dielectric constant measured with this cell can be corrected for electrode effects according to Shaw's formula, without using extrapolation to infinite frequency or a method necessitating comparison to other conducting media. Measurements have been performed with aqueous electrolytic solutions. The results are compatible with those published previously and obtained by applying a different method of correction for electrode effects. It has thus been confirmed that the dielectric constant of extremely dilute solutions of strong electrolytes (c ≤ 3.10−3 moles/l) are very close to that of pure water. Copyright © 1958 Wiley‐VCH Verlag GmbH & Co. KGaA, Weinheim