Kinetics and Mechanism of Oxidation of Phenylhdrazine and Pbromophenylhdrazine by Hexacyanoferrate(III) in Acidic Medium

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Journal Title, Volume, Page: 
International Journal of Chemical Kinetics, 01/1990; 22(10):1027–1037
Year of Publication: 
1990
Authors: 
Mohammed Alsubu
Current Affiliation: 
Department of Chemistry, Faculty of Science, An-Najah National University, Nablus, Palestine
Preferred Abstract (Original): 

Kietics of oxidation of phenylhydrazine and p-bromophenylhydrazine by hexacyanoferrate(III) in acidic medium have been studied. The reactions follow similar kinetics, being first order with respect to both hydrazine and exacyanoferrate(III) and inverse first order with respect to the hydrogen ion. Addition of hexacyanoferrate(II) has no retarding effect on the rate of oxidation. The effects of varying ionic strength, dielectric constant, and temperature on the reaction rates have been investigated. A plausible mechanism has been proposed to account for the experimental results. Benzene and bromobenzene have been identified as the oxidation products.