Multicomponent convection in the chlorite–tetrathionate reaction
Multicomponent convection in the chlorite–tetrathionate reaction
The effect of chemical composition on the density fingering arising in the acid-catalyzed reaction of chlorite and tetrathionate ions is investigated experimentally. The increase in the concentration of reactants increases the region of convective instability observed in the reaction for both upward and downward propagating fronts. The increase of hydroxide ion concentration, however, stabilizes the downward propagating fronts and destabilizes the upward propagating fronts allowing multicomponent convection to dominate the pattern formation for certain chemical composition. The density fingering is also analyzed quantitatively by determining the dispersion curves and their characteristics describing the initial evolution of the pattern formation.
153-156
Bánsági, Tamás
3984187d-60fd-47f2-b6cb-f312dcedadae
Horváth, Dezső
9030b786-a7dd-483c-a336-5471279608ae
Tóth, Ágota
0fec3cc5-69fa-4377-9140-46a2f9c04cbb
Bánsági, Tamás
3984187d-60fd-47f2-b6cb-f312dcedadae
Horváth, Dezső
9030b786-a7dd-483c-a336-5471279608ae
Tóth, Ágota
0fec3cc5-69fa-4377-9140-46a2f9c04cbb
Bánsági, Tamás, Horváth, Dezső and Tóth, Ágota
(2003)
Multicomponent convection in the chlorite–tetrathionate reaction.
Chemical Physics Letters, 384 (1-3), .
(doi:10.1016/j.cplett.2003.12.018).
Abstract
The effect of chemical composition on the density fingering arising in the acid-catalyzed reaction of chlorite and tetrathionate ions is investigated experimentally. The increase in the concentration of reactants increases the region of convective instability observed in the reaction for both upward and downward propagating fronts. The increase of hydroxide ion concentration, however, stabilizes the downward propagating fronts and destabilizes the upward propagating fronts allowing multicomponent convection to dominate the pattern formation for certain chemical composition. The density fingering is also analyzed quantitatively by determining the dispersion curves and their characteristics describing the initial evolution of the pattern formation.
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e-pub ahead of print date: 20 December 2003
Identifiers
Local EPrints ID: 505687
URI: http://eprints.soton.ac.uk/id/eprint/505687
ISSN: 0009-2614
PURE UUID: a74076a3-9a82-48e2-b5df-510f873738c4
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Date deposited: 16 Oct 2025 16:46
Last modified: 17 Oct 2025 02:17
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Author:
Tamás Bánsági
Author:
Dezső Horváth
Author:
Ágota Tóth
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