Quantitative bestimmung von kobalt an der rotierenden quecksilberelektrode

A modified mercury electrode was constructed and used as a cathode and, at the same time, as a container for the electrolyte. Its applicability as well as its advantages in comparison with other mercury electrodes have been studied on the determination of cobalt.On this rotating electrode cobalt could be quantitatively determined with a shorter duration of electrolysis. If determined conditions wire fulfilled, satisfactory results could he obtained in spite of a slight tendency for a subsequent oxidation of the cobalt from the amalgam. This justifies the recommendation of the rotating mercury electrode and of the method described for the quantitative determination of cobalt.