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Issue 10, 2010
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An improved chemical model for the quantitative description of the front propagation in the tetrathionatechlorite reaction

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Abstract

It is experimentally proven that the stoichiometry of the tetrathionatechlorite reaction is 2S4O2−6 + 8½ClO2 + 6H2O = 8SO2−4 + ClO3 + 7½Cl + 12H+ near 1 : 4 molar ratio of the reactants. Re-evaluation of the previously measured front velocity—concentration curves also shows that this stoichiometry along with both the rate equation r = (1.6 × 105 M−3 s−1 [H+]2 + 3.6 × 107 M−4 s−1 [H+]3)[S4O2−6][ClO2]and the protonation processes existing in the present system allow us to describe the front velocity as a function of the initial concentration of the reactants quantitatively. Some consequences detailed in the conclusions may concern not only uniquely the tetrathionatechlorite reaction but any front propagation study including H+ as an autocatalyst.

Graphical abstract: An improved chemical model for the quantitative description of the front propagation in the tetrathionate–chlorite reaction

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Publication details

The article was received on 06 Oct 2009, accepted on 04 Dec 2009 and first published on 15 Jan 2010


Article type: Paper
DOI: 10.1039/B920618C
Citation: Phys. Chem. Chem. Phys., 2010,12, 2356-2364
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    An improved chemical model for the quantitative description of the front propagation in the tetrathionatechlorite reaction

    G. Peintler, G. Csekő, A. Petz and A. K. Horváth, Phys. Chem. Chem. Phys., 2010, 12, 2356
    DOI: 10.1039/B920618C

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