Eur. J. Chem. volume 2, issue 3, P342-346 2011 DOI: 10.5155/eurjchem.2.3.342-346.385

Kinetics and mechanism of oxidation of n-butylamine and 1,3-propanediamine by potassium ferrate

Jinhuan Shan, Yafeng Yang, Jinhuan Shan
Abstract: KEYWORDSThe kinetics of oxidation of n-butylamine and 1,3-propanediamine by home-made potassium ferrate(VI) at different conditions has been studied spectrophotometrically in the temperature range of 283.2-298.2 K. The results show first order dependence on potassium ferrate (VI) and on each reductant. The observed rate constant (kobs) decreases with the increase of [OH -], and the reaction rate has a negative fraction order with respect to [OH -]. A plausible mechanism is proposed and the rate equations derived from the mechanism was shown to fit all the experimental results. The rate constants of the rate-determining step and the thermodynamic activation parameters are calculated.
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