Collect. Czech. Chem. Commun.
1987, 52, 308-315
https://doi.org/10.1135/cccc19870308
Determination of the adsorption film characteristics of alkyltriphenylphosphonium cations from time dependent capacitance measurements
Anastos Anastopoulos and Anastasia Christodoulou
Laboratory of Physical Chemistry, Chemistry Department, University of Thessaloniki, Thessaloniki 54006, Greece
Abstract
The determination of the adsorbed film characteristics at the interface between methanolic solutions of quaternary phosphonium salts and the Hg electrode is carried out by means of time dependent capacitance measurements. The maximum surface concentration, the area per adsorbed particle and the orientation of methyltriphenyl-, cyclopropyltriphenyl-, and n-butyltriphenylphosphonium cations are derived by two methods, the first of which is free of isotherm assumptions and the second involves an adsorption isotherm obeyed by the system under examination.
