A solid‐state glass/TiO2 electrode was fabricated using a transparent conductive titanium oxide film on a glass substrate. The coating of the glass substrate was achieved by a novel simple chemical vapor deposition (CVD) procedure. This electrode can be used as an indicator electrode in potentiometric acid‐base titration. This electrode behaves reversibly and responds to the oxide ion concentration in molten NaNO3 · Na2HAsO4, NaPO3, Na4P2O7, and their binary mixtures were potentiometrically titrated with Na2O2 as titrants in molten NaNO3 at 350°C, using the above mentioned indicator electrode.
This work was accomplished through a grant from the Deanery of Scientific Research in the Al‐Azhar University of Gaza.