title: Determination of autoprotolysis constants of ketones using hydrogen-palladium generator electrode.
abstract: A coulometric-potentiometric method for the determination of autoprotolysis constants of acetone and methyl ethyl ketone, is described. The method is based on the titration of a strong base, i.e., tetrabutylammonium hydroxide with protons obtained by anodic oxidation of hydrogen at an H(2)/pd electrode in the presence of tetrabutylammonium perchlorate as the supporting electrolyte. The titration was carried out in a galvanic cell with glass and calomel electrodes, at 25 degrees . The pK(s) value obtained for acetone and methyl ethyl ketone were 25.82 +/- 0.05 and 26.92 +/- 0.07, respectively.
authors.affiliation: Faculty of Sciences, University of Kragujevac, Kragujevac, Yugoslavia.
authors.forename: R P
authors.initials: RP
authors.lastname: Mihajlovi'c
authors.forename: R M
authors.initials: RM
authors.lastname: Dzudović
authors.forename: V J
authors.initials: VJ
authors.lastname: Vajgand