界面電氣の硏究(第12報) : U-効果を利用した Impedance Matching Method による水銀-溶液界面の電氣容量測定(III)

Abstract

We measured the capacities at mercury-m.KC1, -m.KNO3 and -m. KBr aq. interfaces at various polarizing potentials by the use of "Impedance Matching Method", on which we related in the preceding papers. In order to alter the preciseness of the data we measured only the out-put voltage and the load impedance and calculated the power supplied to the load by the formula (power) = (voltage)2/ (resistance). By this the measurement was simplified too. The other points were quite the same as the former device. The capacities at positively polarized side against electrocapillary maximum were larger than those at negatively polarized side. This seems to be due to the specific adsorption of dehydrated anions at mercury surface. Humps were detected at every capacity-potential curves near the electrocapillary maximum, which can not be interpreted as yet.