DETERMINATION OF AUTOPROTOLYSIS CONSTANTS OF KETONES USING HYDROGEN-PALLADIUM GENERATOR ELECTRODE

被引：4
|
作者：
MIHAJLOVIC, RP [1 ]
DZUDOVIC, RM [1 ]
VAJGAND, VJ [1 ]
机构：
[1] UNIV BELGRADE, FAC SCI, BELGRADE, YUGOSLAVIA
来源：
TALANTA | 1993年 / 40卷 / 05期
关键词：
D O I：
10.1016/0039-9140(93)80272-S
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
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.
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页码：649 / 652
页数：4
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