Lanthanum Trifluoride as a Membrane in a Reference Electrode for Use in Certain Molten Fluorides

Abstract

A reference electrode system which utilizes the unique properties of a single crystal lanthanum trifluoride membrane, namely, negligible solubility and virtually 100% current transport by fluoride ions, was successfully used both for electroanalytical measurements and for obtaining thermodynamic data in certain fluoride melts of interest to the Molten Salt Breeder Reactor.