American Journal of Physical Chemistry

Archive

Volume 5, Issue 6, December 2016

  • Kinetics and Mechanistic Study of Permanganate Oxidation of L-Citrulline in Acidic and Basic Media

    Ismail I. Althagafi, Ahmed Fawzy

    Issue: Volume 5, Issue 6, December 2016
    Pages: 99-107
    Received: 29 August 2016
    Accepted: 17 October 2016
    Published: 29 November 2016
    DOI: 10.11648/j.ajpc.20160506.11
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    Abstract: Kinetics of oxidation of L-citrulline (Cit) by permanganate ion in both acidic and basic media has been investigated spectrophtometrically at constant ionic strengths and at 25°C. In both media the reactions exhibited first order dependence in [permanganate] and less than unit order dependences in L-citrulline concentration. A fractional-second ord... Show More
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  • Kinetics and Mechanisms of Permanganate Oxidations of Cadaverine in Different Media

    Ahmed Fawzy, Ishaq A. Zaafarany, Metwally Abdallah, Rabab S. Jassas, Rami J. Obaid

    Issue: Volume 5, Issue 6, December 2016
    Pages: 108-117
    Received: 16 November 2016
    Accepted: 23 November 2016
    Published: 23 December 2016
    DOI: 10.11648/j.ajpc.20160506.12
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    Abstract: The kinetics of oxidation of cadaverine (CAD) by permanganate ion in acidic, neutral and alkaline media has been investigated spectrophtometrically at constant ionic strengths and temperature. The reactions in different media exhibited a first order kinetics in [MnO4-] and less than unit order dependences with respect to [CAD]. The oxidation of cad... Show More
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  • Solvent Effects on the Kinetics of the Dakin-West Reaction

    Ayman Abdelaziz Osman

    Issue: Volume 5, Issue 6, December 2016
    Pages: 118-127
    Received: 21 November 2016
    Accepted: 5 December 2016
    Published: 12 January 2017
    DOI: 10.11648/j.ajpc.20160506.13
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    Abstract: The rate of the Dakin-West reaction have been investigated in Me2SO, THF and CH3CN at the temperature range (55–70) are reported. First order rate constants were obtained in each case. A Bronsted slope was found to be equal -0.0277 indicates that the transition state is very reactant-like and the proton has barely moved. Further, the solvent effect... Show More
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  • Adsorption and Kinetic Optimization Study of Acetic Acid from Aqueous Solutions Using Activated Carbon Developed from Vernonia amygdalina Wood

    Yilkal Dessie Sintayehu, Lalisa Terefe Lencha

    Issue: Volume 5, Issue 6, December 2016
    Pages: 128-132
    Received: 7 December 2016
    Accepted: 23 December 2016
    Published: 18 January 2017
    DOI: 10.11648/j.ajpc.20160506.14
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    Abstract: In this study, the adsorption of Acetic acid from an aqueous solution is investigated using activated charcoal prepared from Bitter leaf (Vernoniaamygdalina) that is activated by tap water. Carbonizations at different activation temperature with constant flow of air are used to examine for accepted accessibility of sorbent material. The optimum con... Show More
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