Photolysis of in strong alkaline solutions in the presence of ϭ S O (pH Ͼ 13) 2 8 molecular oxygen yields ozonide radical ions, These radicals show a complex decay rate Ϫ и O . 3 sensitive to the peroxodisulfate concentration. A reaction mechanism, which includes the reaction of Oи Ϫ and with a rate
Kinetics of O·− and O3·− in alkaline aqueous solutions of hydrogen peroxide
✍ Scribed by Mónica C. Gonzalez; Daniel O. Mártire
- Publisher
- John Wiley and Sons
- Year
- 1997
- Tongue
- English
- Weight
- 185 KB
- Volume
- 29
- Category
- Article
- ISSN
- 0538-8066
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✦ Synopsis
The photolysis of strong alkaline solutions of H 2 O 2 yields , which in the presence of molecular oxygen forms the ozonide radical ion,
. A detailed kinetic study on the reaction mechanisms involved during formation and decay of radical ions in these solutions, in the presence and absence of added scavengers is reported. In order to obtain a complete interpretation of the experimental data, kinetic computer simulations were done using a complete set of reactions. A very good agreement between experimental and computer simulated data is obtained. The following simplified mechanism accounts for the observed first-order decay of in alkaline hydrogen peroxide solutions:
📜 SIMILAR VOLUMES
The action of hydrogen peroxide and sodium hydroxide independently as well as in combination together with satbilizer formulation-consisting of magnesium sulphate (5 g/L), ethylenediamine tetraacetic acid (2 g/L), gluconic acid (2 g/L), and nonionic/anionic wetting agent (1.5 g/L)--on poly(viny1 alc