American Journal of Physical Chemistry

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: Jan. 01, 2016
    Accepted: Jan. 08, 2016
    Published: Jan. 25, 2016
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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
  • 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: Jan. 15, 2016
    Accepted: Jan. 23, 2016
    Published: Feb. 04, 2016
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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