Palladium Hydride pH Electrode Equipped with

In order to overcome the difficulties in the measurement of the hydrogen ion concentration, C$+, in aqueous solutions by the glass electrode, a palladium hydride electrode of improved type has been proposed. Using the electrode, it is possible to determine Cx+ in solutions containing fluoride ions or rather concentrated acid or base. The potential at the electrode is stable at least for 1000 hours in the absence of such strong oxidizing agents as dichromate and ferric ions in the test solution. The potential generating process at the electrode has been discussed