Multicomponent convection in the chlorite-tetrathionate reaction

被引：40

作者：

Bansagi, T ^{[1
]}

Horváth, D ^{[1
]}

Tóth, A ^{[1
]}

机构：

[1] Univ Szeged, Dept Phys Chem, H-6701 Szeged, Hungary

来源：

CHEMICAL PHYSICS LETTERS | 2004年 / 384卷 / 1-3期

关键词：

D O I：

10.1016/j.cplett.2003.12.018

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

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. (C) 2003 Elsevier B.V. All rights reserved.

引用

页码：153 / 156

页数：4

共 22 条

[1] Density fingering of an exothermic autocatalytic reaction -: art. no. 055301 [J].