Selenium dioxide catalysed oxidation of acetic acid hydrazide by bromate in aqueous hydrochloric acid medium

Journal of Chemical Sciences

G S Gokavi1¹  R S Yalgudre¹ 

[1] Kinetics and Catalysis Laboratory, Department of Chemistry, Shivaji University Kolhapur 416 004, India$$

关键词: Acetic acid hydrazide;    oxidation;    bromate;    kinetics;    selenium dioxide;    catalysis.;   

DOI  :  

来源: Indian Academy of Sciences

【 摘 要 】

Selenium dioxide catalysed acetic acid hydrazide oxidation by bromate was studied in hydrochloric acid medium. The order in oxidant concentration, substrate and catalyst were found to be unity. Increasing hydrogen ion concentration increases the rate of the reaction due to protonation equilibria of the oxidant. The mechanism of the reaction involves prior complex formation between the catalyst and substrate, hydrazide, followed by its oxidation by diprotonated bromate in a slow step. Acetic acid was found to be the oxidation product. Other kinetic data like effect of solvent polarity and ionic strength on the reaction support the proposed mechanism.

【 授权许可】

Unknown