2-DIMENSIONAL CONDENSATION OF A SERIES OF ORGANIC-COMPOUNDS ON ELECTRODES OF INDIUM AMALGAM

The method of measuring differential capacitance was used to study the two-dimensional condensation of a series of surface-active organic su bstances, such as 1-hydroxyadamantane, borneol, 1-adamantylmethylketon e, and camphor on a dropping electrode of indium amalgam over a wide r ange of temperatures. A narrowing (compared with mercury) of the poten tial regions in which a condensed layer can exist and a lowering of th e crucial temperatures at which the layer disintegrates were revealed. We ascribed these and other revealed features of layers condensed on indium amalgam to the amalgam hydrophily.