REFERENCE ELECTRODES FOR HIGH TEMPERATURE AQUEOUS SYSTEMS - A REVIEW AND ASSESSMENT.

A major problem in all high temperature electrochemical studies in aqueous systems is choosing a suitable reference electrode. The purpose of this paper is to review the performance of a number of reference electrodes in high temperature aqueous systems, and to suggest criteria which, should be met if the experiment is to yield meaningful data. Possible reasons for the failure of some of the well established room temperature reference electrodes at elevated temperatures are also discussed. 50 refs.