Coulometric generation of hydrogen ions by oxidation of mercury in anhydrous acetone.
The application of a mercury anode for the quantitative generation of H(+) ions in anhydrous acetone has been investigated. From the changes of anode potential with current density in 0.25M sodium perehlorate in anhydrous acetone it has been established that in this solvent mercury is oxidized at a potential which is much more negative than the oxidation potentials of the bases to be titrated, the indicator used and the solvent. Protons generated in this way have been used for titration of some organic bases, with either visual or potentiometric end-point detection. The oxidation of mercury in anhydrous acetone and the reaction of mercury ions with acetone have been found to proceed with 100% current efficiency.
Mihajlović
R P
RP
Faculty of Science, Radoja Domanovića 12, Kragujevac, Yugoslavia.
Vajgand
V J
VJ