One-Dimensional Liesegang Phenomena under the Influence of Electric and Magnetic Fields

Abstract

One-dimensional Liesegang phenomena under the influence of electric field is studied quantitatively. Diffusion of ions under an uniform electric field is investigated by taking the effect of counterions into account. Diffused cations and anions in the electric field react similarly to the outer- and innerelectrolyte of the ordinary Liesegang phenomena. The time law is modified as x=k\sqrt2D₀t+wEt where w is the mobility of the cation and E the field. This is well confirmed quantitatively by Okaya’s experiments.
The effect of magnetic field is also studied by a similar method. It appears as a diminution of magnitude of diffusion coefficient D₀, which is so small as to be detected. This explains favorably Yanagihara’s experiments.