Ozone and saline

Primary Stage of the Reaction between Ozone and Chloride Ions
in Aqueous Solution: Can Chloride Ion Oxidation
by Ozone Proceed via Electron
Transfer Mechanism?

A. V. Levanov, E. E. Antipenko, and V. V. Lunin
Faculty of Chemistry, Moscow State University, Moscow, 119991 Russia

Received April 28, 2011
ISSN 00360244, Russian Journal of Physical Chemistry A, 2012, Vol. 86, No. 4, pp. 584-589. © Pleiades Publishing, Ltd., 2012.
Original Russian Text © A.V. Levanov, E.E. Antipenko, V.V. Lunin, 2012, published in Zhurnal Fizicheskoi Khimii, 2012, Vol. 86, No. 4, pp. 663-668.

Abstract-It is found that chlorideion oxidation by ozone via electron transfer mechanism does not occur
due to its extremely high endoergicity and negligibly low rate. It is concluded that all processes supposedly
associated with this reaction, particularly ozone decomposition in sodium chloride solution initiated by Cl•
atoms, do not take place either. It is shown that experimental data on the products and kinetic regularities of
the interaction of O3 with Cl- contradict the assumption that the electron transfer reaction is its primary
stage. In fact, chlorideion oxidation by ozone proceeds via the mechanism of oxygen atom transfer. It is
noted that in order to estimate the possibility of using an ozonated physiological saline in medicine, the for
mation of chlorideion oxidation products and ozonation byproducts must be taken into account.

Keywords: ozone, chlorideion, electron transfer reaction, physiological saline, chemical reaction kinetics.
DOI: 10.1134/S0036024412040164

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