A continual monitoring method of measuring single ion diffusion coefficients

Abstract

The limiting expressions derived by Onsager were applied to the problem of single ion diffusion by Gosting and Harned in 1951. At the same time these authors have pointed out the need and significance of testing the validity of the Onsager limiting law. In the discussions of the Faraday Society in 1957, Harned has once again stressed the need for this work. Here he says, "... a more exact proof of the validity of the limiting equation offers a difficult challenge to the experimenter since precise results at concentrations less than 0.01 M will be required." However, these important suggestions had to await the steady advance of the improvements in techniques leading to ever increasing precision in the measurement of the self-diffusion coefficients. (First paragraph of preface.) Show more