Collect. Czech. Chem. Commun. 1997, 62, 739-745

The Belousov-Zhabotinskii Oscillatory Reaction Involving Some Organic Chiral Substrates

Ľubica Adamčíková, Katarína Kučárová and Peter Ševčík

Department of Physical Chemistry, Faculty of Natural Sciences, Comenius University, 842 15 Bratislava, Slovak Republic


Oscillatory systems of the Belousov-Zhabotinskii (BZ) type were studied using the following substrates: D-gluconic and D-galactonic acids, their lactones, and D-glucose and D-galactose. The systems were either nitrogen purged or left undisturbed. It is suggested that during the induction period (IP), reactions occur giving rise to the active substrate in the BZ system which need not be identical with the organic substance with which the oscillatory system starts up. A special dependence of the IP on sulfuric acid concentration was measured, exhibiting a minimum and a maximum; the dependence on perchloric acid concentration displayed a minimum.

Keywords: Chemical oscillations; BZ type bromate oscillators; Induction period.