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.
| Original language | English |
|---|---|
| Pages (from-to) | 153-156 |
| Number of pages | 4 |
| Journal | Chemical Physics Letters |
| Volume | 384 |
| Issue number | 1-3 |
| Early online date | 20 Dec 2003 |
| DOIs | |
| Publication status | Published - 19 Jan 2004 |
Bibliographical note
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.
Funding
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.
ASJC Scopus subject areas
- General Physics and Astronomy
- Physical and Theoretical Chemistry