Use of bifurcation diagrams as fingerprints of chemical mechanisms

Zoltan Noszticzius, William D. McCormick, Harry L. Swinney

Research output: Contribution to journalArticle

30 Citations (Scopus)


Various chemical reagents were fed continuously into a continuously stirred tank reactor to perturb the Belousov-Zhabotinskii system. The resulting bifurcation diagrams each contain multiple curves separating regions with different types of dynamical behavior. These very complex diagrams can be used as "fingerprints" of the perturbing chemical mechanism. Essentially the same bifurcation structures were observed under the addition of formaldehyde and sodium bromite, indicating the same mechanism. The effect of bromomalonic and hypobromous acids was also found to be nearly identical; the slight differences between their "fingerprints" is explained by the effect of bromine, which contaminates the HOBr. Finally, the effect of added bromide is shown in another bifurcation diagram.

Original languageEnglish
Pages (from-to)2796-2800
Number of pages5
JournalJournal of physical chemistry
Issue number7
Publication statusPublished - Jan 1 1989

ASJC Scopus subject areas

  • Engineering(all)
  • Physical and Theoretical Chemistry

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