ELECTRIC-FIELD EFFECTS ON THE SURFACE-TENSION OF AIR SOLUTION INTERFACES

Authors
JIANG QA CHIEW YC VALENTINI JE
Citation
Qa. Jiang et al., ELECTRIC-FIELD EFFECTS ON THE SURFACE-TENSION OF AIR SOLUTION INTERFACES, Colloids and surfaces. A, Physicochemical and engineering aspects, 83(2), 1994, pp. 161-166
Citations number
13
Categorie Soggetti
Chemistry Physical
Journal title
Colloids and surfaces. A, Physicochemical and engineering aspects → ACNP
ISSN journal
09277757
Volume
83
Issue
2
Year of publication
1994
Pages
161 - 166
Database
ISI
SICI code
0927-7757(1994)83:2<161:EEOTSO>2.0.ZU;2-7
Abstract
The surface tensions of pure water, sodium chloride (NaCl) and sodium dodecyl sulfate (SDS) solutions at the air/water interface under an ap plied electric field were measured through propagating capillary waves . We found that the wavelengths of capillary waves always decrease wit h increasing applied electric field. However, the changes in surface t ension of all solutions studied, for fields up to 10 kV cm-1, are foun d to be insignificant and can not be detected within the experimental sensitivity (about 0.1 dyn cm-1).