Reactions of iodomalonic acid, diiodomalonic acid, and other organics in the briggs-rauscher oscillating system

Stanley D. Furrow, David J. Aurentz

Research output: Contribution to journalArticle

20 Scopus citations

Abstract

It was found that oxalic acid is one of the main products in the Briggs-Rauscher oscillating reaction. In nonoscillating solutions, oxidation of iodomalonic acid and/or diiodomalonic acid by Fenton-type reactions also produced oxalic acid as well as I2. Mesoxalic acid yielded oxalic acid under similar conditions. Tartronic acid was nearly inert to Fenton-type reactions; however, tartronic acid was oxidized by iodate and iodine to mesoxalic acid, which in turn could form oxalic acid in the presence of H 2O2 plus catalyst. Iodotartronic acid appeared to be a short-lived but significant intermediate, thus both tartronic acid and mesoxalic acid are possible intermediates. Glycolic acid and glyoxylic acid are not intermediates in the oxidation of iodomalonic acid, since they in turn produce formic acid under similar nonoscillating conditions.

Original languageEnglish (US)
Pages (from-to)2526-2533
Number of pages8
JournalJournal of Physical Chemistry A
Volume114
Issue number7
DOIs
StatePublished - Feb 25 2010

All Science Journal Classification (ASJC) codes

  • Physical and Theoretical Chemistry

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