TY - JOUR
T1 - Multicomponent convection in the chlorite-tetrathionate reaction
AU - Bánsági, Tamás
AU - Horváth, Dezso
AU - Tóth, Ágota
N1 - Funding Information:
We thank A. Kiss and B. Harmath for carrying out preliminary experiments, and Prof. I. Dékány for the use of the density meter. This work was supported by the Ministry of Education (FKFP 0004/2001) and the ESF Reactor Programme.
PY - 2004/1/19
Y1 - 2004/1/19
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=18744427216&partnerID=8YFLogxK
U2 - 10.1016/j.cplett.2003.12.018
DO - 10.1016/j.cplett.2003.12.018
M3 - Article
AN - SCOPUS:18744427216
SN - 0009-2614
VL - 384
SP - 153
EP - 156
JO - Chemical Physics Letters
JF - Chemical Physics Letters
IS - 1-3
ER -