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Updated: May 6, 2026

Reaction Kinetics and Combustion Dynamics of I4O9 and Aluminum Mixtures
Published on: November 7, 2016
Hydrodynamic instability in the open system of the iodate-arsenous acid reaction
Éva Pópity-Tóth1, Véronique Pimienta, Dezső Horváth
1Department of Physical Chemistry and Materials Science, University of Szeged, Aradi vértanúk tere 1, Szeged H-6720, Hungary.
Abstract:
Hydrodynamic instability arising in horizontally propagating vertical chemical fronts leading to the formation of a single stable convection roll is investigated experimentally in the iodate-arsenous acid reaction for various stoichiometry. In the presence of a free surface, the tilted reaction front becomes more elongated due to the evaporation of the surface active iodine and the decrease in the surface tension during the reaction. The experimental conditions are then identified where Marangoni instability represents the driving force for the distortion of the reaction front at the surface.
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