Archive:: American Journal of Physical Chemistry:: Science Publishing Group

Volume 5, Issue 1, February 2016

Chromic Acid Oxidation of Methylaminopyrazole Formamidine in Sulfuric Acid Medium: A Kinetic and Mechanistic Approach

Ahmed Fawzy, Ismail Althagafi, Fahd Tirkistani, Mohamed Shaaban, Moataz Morad

Issue: Volume 5, Issue 1, February 2016

Pages: 1-9

Received: 1 January 2016

Accepted: 8 January 2016

Published: 25 January 2016

DOI: 10.11648/j.ajpc.20160501.11

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Abstract: The kinetics of chromic acid oxidation of one of aminopyrazole formamidine derivatives, namely N,N-dimethyl-N’ -(5-methyl-1H-pyrazol-3-yl) formamidine (MAPF)in sulfuric acid solutions has been investigated at constant ionic strength and temperature. The progress of the reaction was followed spectrophotometrically. The reaction showed a first order ... Show More

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Kinetics and Mechanistic Study of Oxidation of Pyridine Derivative by Cerium(IV) in Aqueous Perchloric Acid

Ahmed Fawzy, Ishaq A. Zaafarany, Fahd A. Tirkistani, Ameena Al-Bonayan, Faten A. Aljiffrey

Issue: Volume 5, Issue 1, February 2016

Pages: 10-16

Received: 15 January 2016

Accepted: 23 January 2016

Published: 4 February 2016

DOI: 10.11648/j.ajpc.20160501.12

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Abstract: The kinetics of oxidation of N, N-dimethyl-N’-(pyridin-2-yl) formamidine (Py-F) by cerium(IV) was studied spectrophotometrically in aqueous perchloric acid solutions at a constant ionic strength of 1.0 mol dm^-3 and at 20°C. The reaction showed first order dependence with respect to [Ce(IV)] and less than unit order with respect to [Py-F]. The react... Show More

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