| Abstract: | The oxidation of butadiene to crotonaldehyde has been investigated using an aqueous catalyst solution containing palladium chloride–cupric chloride in dilute hydrochloric acid. Unlike the oxidation of ethylene, propylene, etc., this oxidation was found to be a zero-order reaction with respect to butadiene. The effects of temperature and the concentration of Pd2+, Cu2+, Cl? and H+ ions on the reaction rate were studied. The order of reaction with respect to Cl? and H+ ions in this case (approximately 1.5 and ?0.25, respectively) is different from that observed in the case of lower alkenes. |
