Studies in iron oxide sols Part I. Electrical conductivity of iron oxide sol

Abstract

Concentrated iron oxide sol of Graham type has been prepared and subjected to hot intermittent dialysis for a period of one month. The composition of the sol as well as the variation of the conductivity with dilution were determined. It has been found that the bulk of the stabilizing ions adhere to the micelles and the variation of the conductivity with dilution shows that the iron oxide sol behaves as a typical colloidal electrolyte.