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  • Chem Sci Trans., 2016, 5(1),  pp 171-178  

    DOI:10.7598/cst2016.1181

    Research Article

    Effects of Surfactants on the Oxidation of Aromatic Azo Dyes

  • AMITA V. TANDEL1 and HIMANSHU D. PATEL2
  • 1 Mahatma Gandhi Institute of Technical Education & Research Centre, Navsari, Gujarat-396450, India
    2 Dr. APJ Abdul Kalam Govt. College, Silvassa-Dokmardi, DNH-396230, India
  • Abstract

    The oxidation of methyl red (MR) and methyl orange (MO) by Vanadium (V) in aqueous sulphuric acid media in the presence of anionic surfactants at different temperatures has been investigated. The reaction studied spectrophotometrically in aqueous sulphuric acid medium is first order in vanadium (V) methyl red (MR) and methyl orange (MO). Plots of kobs versus [H+] are linear with positive intercepts on kobs axes, suggesting the formation of a complex between vanadium (V) and dye. The activation and thermodynamic parameters have been calculated. The kinetic model use in this study to describe the dependence of rate constant on the reaction mechanism proposed

    Keywords

    Oxidation, Kinetics, Mechanism, Activation and thermodynamic parameters

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