On the kinetics of coupled sulfur and oxygen transfer through an ionic diaphragm

Turkdogan and Griveson have shown experimentally by use of the coupled S-O reaction in ionic melts that it is possible to transfer sulfur or oxygen from a low to a high chemical potential through an ionic membrane. A new rate expression has been derived by applying the relations of irreversible thermodynamics under the constraint of electrical neutrality. The experimental results obtained by Turkdogan and Grieveson² are satisfactorily interpreted by means of the new analysis.