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Ozonocatalytic Decomposition of Glyoxal and Glyoxylic and Formic Acids in the Presence of Iron(III) Ionsстатья
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
- Авторы: Ben'ko E.M., Lunin V.V.
- Журнал: Russian Journal of Physical Chemistry A
- Том: 84
- Номер: 2
- Год издания: 2010
- Издательство: Pleiades Publishing, Ltd
- Местоположение издательства: Road Town, United Kingdom
- Первая страница: 215
- Последняя страница: 220
- DOI: 10.1134/S003602441002010X
- Аннотация: Rate constants of reactions of ozone with glyoxal, glyoxylic and formic acid in aqueous solutions at pH 1.5 were determined. It was shown that iron(III) in the form of ions accelerates oxidation of glyoxal and glyoxylic acid, but does not influence reaction between ozone and formic acid. It was established that the catalyst acts effectively if its concentration is comparable to the concentration of the oxidized substrate, the optimal stoichiometric ratio (Fe(3+)/substrate) being close to 1/3. The catalytic reaction mechanism was studied using a competitive chelate ligand, oxalic acid. We concluded that the catalytic activity of iron( III) in the investigated reaction was due to its ability to form chelate complexes in which the substrate was more easily oxidized by molecular ozone.
- Добавил в систему: Бенько Елена Михайловна