Pattern formation in the methylene-blue - Glucose system

Authors
Pons, AJ Sagues, F Bees, MA Sorensen, PG
Citation
Aj. Pons et al., Pattern formation in the methylene-blue - Glucose system, J PHYS CH B, 104(10), 2000, pp. 2251-2259
Citations number
17
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
JOURNAL OF PHYSICAL CHEMISTRY B
ISSN journal
15206106 → ACNP
Volume
104
Issue
10
Year of publication
2000
Pages
2251 - 2259
Database
ISI
SICI code
1520-6106(20000316)104:10<2251:PFITM->2.0.ZU;2-Z
Abstract
We report a systematic study of pattern formation in a thin fluid layer dri ven by a simple chemical reaction. The hydrodynamic instability arises due to the increase of fluid density in the subsurface layer caused by the O-2 oxidation of glucose to gluconic acid with the methylene blue as a catalyst . We also report independent measurements of the kinetics of the reaction a nd of the increase in density which gives rise to the instability.