Kinetics of photoresponse of the chlorine dioxide-iodine-malonic acid reaction

A. Horváth, Milos Dolnik, Anatol M. Zhabotinsky, Irving R. Epstein

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

We studied the photoresponse of the chlorine dioxide-iodine-malonic acid (CDIMA) reaction. In a continuously fed stirred tank reactor, the photosensitivity increases with decreasing residence time and increasing concentration of chlorine dioxide. Under certain conditions, concentrations change in a sigmoidal fashion in response to a jump in the intensity of illumination. We propose a new mechanism for the effect of visible light on the CDIMA reaction. Simulations based on the proposed mechanism accurately describe the experimentally observed kinetics.

Original languageEnglish
Pages (from-to)5766-5769
Number of pages4
JournalJournal of Physical Chemistry A
Volume104
Issue number24
Publication statusPublished - Jun 22 2000

Fingerprint

dioxides
Iodine
iodine
chlorine
acids
Kinetics
kinetics
Photosensitivity
photosensitivity
Lighting
illumination
reactors
malonic acid
chlorine dioxide
simulation

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry

Cite this

Horváth, A., Dolnik, M., Zhabotinsky, A. M., & Epstein, I. R. (2000). Kinetics of photoresponse of the chlorine dioxide-iodine-malonic acid reaction. Journal of Physical Chemistry A, 104(24), 5766-5769.

Kinetics of photoresponse of the chlorine dioxide-iodine-malonic acid reaction. / Horváth, A.; Dolnik, Milos; Zhabotinsky, Anatol M.; Epstein, Irving R.

In: Journal of Physical Chemistry A, Vol. 104, No. 24, 22.06.2000, p. 5766-5769.

Research output: Contribution to journalArticle

Horváth, A, Dolnik, M, Zhabotinsky, AM & Epstein, IR 2000, 'Kinetics of photoresponse of the chlorine dioxide-iodine-malonic acid reaction', Journal of Physical Chemistry A, vol. 104, no. 24, pp. 5766-5769.
Horváth, A. ; Dolnik, Milos ; Zhabotinsky, Anatol M. ; Epstein, Irving R. / Kinetics of photoresponse of the chlorine dioxide-iodine-malonic acid reaction. In: Journal of Physical Chemistry A. 2000 ; Vol. 104, No. 24. pp. 5766-5769.
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