The kinetics and mechanism of C1O3- formation following the electrolysis of salt brine: What role do C1O2 and/or O3 play?


Chemical kinetics are a key component for understanding the interactions of species and the establishment of realistic chemical models. In complicated chemical systems, stoichiometry and kinetic implications help to clarify data that might otherwise lead to incorrect conclusions. For example, numerous literature reports cite the presence of multiple oxidants (HOCl, Cl2, H22O2, chlorine free radicals, O3, and C1O2) in salt brine solutions that have undergone electrolysis. The presence (or absence) of inorganic species provides a starting point for determining which oxidant species might be present. If chlorine dioxide is present, chlorite ion formation can be expected. If ozone is present, bromide ion will undoubtedly react with ozone to produce bromate on. Analytical methods capable of selectively various oxidants and their by-products have been developed for use in the presence of 300 to 400 mg/1 free available chlorine. These methods were used to correlate reaction stoichiometries and kinetics with field data for electrolyzed salt brine solutions. © 1998 Akadémiai Kiadó.

Publication Title

ACH - Models in Chemistry

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