Abstract
The adsorption of aliphatic, phenyl and naphthyl hydroxy compounds was examined at a dropping mercury electrode in 1 M sulphuric acid at 25°C. The results show that naphthyl compounds are more strongly adsorbed than phenyl compounds, which are in turn more strongly adsorbed than aliphatic compounds. The aromatic compounds appear to be oriented with the rings parallel to the mercury surface. The above two effects are the result of the π-electron interactions between the aromatic ring and the metal surface. These results are essentially the same as those obtained by the capillary electrometer method.
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