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Kinetics of oxidation of hydroxylamine by iron(III) in presence of 1,10-phenanthroline

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Abstract

The kinetics of the title reaction was investigated spectrophotometrically in aqueous perchloric acid medium under isolated conditions, ([NH2OH]≫[Fe(III)]). The reaction was found to be first order in iron(III) as well as in the substrate. INcrease in the [H+] ion concentration of the medium were found to decrease the rate of the reaction, while ionic strength has little influence. Kinetic evidence for the formation of a 1∶2 complex between iron(III) and 1,10-phenanthroline has been obtained. Nitrogen was found to be the principal product of oxidation. A plausible mechanism consistent with the observed

Abstract

Кинетика заглавной реакции была исследована спектрофотометрически в среде водной хлорной кислоты и в условиях [NH2OH]≫[Fe(III)]. Реакция имеет первый порядок как по железу(III), так и по субстрату. Увеличение [H+] бдиэлектрической постоянной среды уменьшает скорость реакции, в то время как ионная сила едва оказывает какое-либо влияние. Были получены кинетические доказательства существования комплеса между жепезом(III) и 1,10-фенантролином с составом 1∶2. Азот был основным продуктом окиления. Предлагается вероятный механизм протекания процесса.

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Authors and Affiliations

  1. Department of Chemistry, Andhra University, Waltair, India

    A. S. P. Vittal, P. V. Krishna Rao & K. Jagan Mohana Rao

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  1. A. S. P. Vittal
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  2. P. V. Krishna Rao
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  3. K. Jagan Mohana Rao
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Vittal, A.S.P., Rao, P.V.K. & Rao, K.J.M. Kinetics of oxidation of hydroxylamine by iron(III) in presence of 1,10-phenanthroline. React Kinet Catal Lett 23, 175–179 (1983). https://doi.org/10.1007/BF02065685

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  • DOI: https://doi.org/10.1007/BF02065685

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