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The solubility and kinetics of decomposition of ozone in aqueous solutions of nitrates

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Abstract

The influence of the concentration of NaNO3 on the solubility of ozone in water was studied at 20, 30, and 40°C. The solubility coefficients of ozone were calculated, and the Henry constants and Sechenov coefficients determined. The Sechenov coefficients (K c ) were found to decrease insignificantly as the temperature increased. The kinetics of dissolved O3 transformations was analyzed. The decomposition of ozone was described by a pseudofirst-order equation with respect to salt concentration. The rate constant (k c ) for the decomposition of ozone in the presence of NaNO3 was found to be 3.5 × 10−4 l mol−1 s−1.

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Authors and Affiliations

  1. Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Leninskii pr. 31, Moscow, 117071, Russia

    N. M. Panich & B. G. Ershov

Authors
  1. N. M. Panich
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  2. B. G. Ershov
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Correspondence to B. G. Ershov.

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Original Russian Text © N.M. Panich, B.G. Ershov, 2008, published in Zhurnal Fizicheskoi Khimii, 2008, Vol. 82, No. 8, pp. 1423–1426.

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Panich, N.M., Ershov, B.G. The solubility and kinetics of decomposition of ozone in aqueous solutions of nitrates. Russ. J. Phys. Chem. 82, 1262–1265 (2008). https://doi.org/10.1134/S0036024408080049

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  • DOI: https://doi.org/10.1134/S0036024408080049

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