ISSN print edition: 0366-6352 ISSN electronic edition: 1336-9075 Registr. No.: MK SR 9/7 Published monthly

Oscillopolarographic study of the oxidation kinetics of cyclohexanol and cyclohexanone with hydrogen peroxide

Ľ. Treindl and E. Palacková

Lehrstuhl für anorganische und physikalische Chemie, Naturwissenschaftliche Fakultät der Komenský- Universität, Bratislava

Abstract: Oscillographic polarography was used to study the kinetics of oxidn. and redn. reactions. The technique was used to det. the rate const. k of the oxidn. of cyclohexanol (4-15 × 10^-3M) with H₂O₂ (concn. equal to that of cyclohexanol) as 2.6 × 10^-3 ± 9% l./mole sec. at 30°. Plot of log k vs. temp. -1 was linear. The activation energy was 8.2 kcal./mole, the activation entropy -42.6 cal./degree-mole. Log k was linear with the square root of the ionic strength of the electrolyte; the slope was 0.4. Oxidn. of cyclohexanone with H₂O₂ had a rate const. of 5.4 × 10^-3l./mole-sec. at 30°, an activation energy of 9.8 kcal./mole, and an activation entropy of -37.8 cal./degree-mole.

Full paper in Portable Document Format: 185-6a385.pdf (in German)

Chemical Papers 18 (5-6) 385–390 (1964)