Effects of added surfactant on the dynamic interfacial tension behavior ofacidic oil/alkaline systems

Citation
Y. Touhami et al., Effects of added surfactant on the dynamic interfacial tension behavior ofacidic oil/alkaline systems, J COLL I SC, 239(1), 2001, pp. 226-229
Citations number
9
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
JOURNAL OF COLLOID AND INTERFACE SCIENCE
ISSN journal
0021-9797 → ACNP
Volume
239
Issue
1
Year of publication
2001
Pages
226 - 229
Database
ISI
SICI code
0021-9797(20010701)239:1<226:EOASOT>2.0.ZU;2-T
Abstract
The effects of a ready-made surfactant (sodium dodecyl sulfate) on the dyna mic interfacial tension between a model acidic oil (linoleic acid dissolved in paraffin oil) and various aqueous alkaline (NaOH) systems have been stu died using pendant drop tensiometry at surfactant concentrations both below and above the critical micelle concentration (CMC). Below the CMC the adde d surfactant contributes significantly to a further reduction of interfacia l tension of the reacting acid/alkaline system, whereas above the CMC the a dded surfactant plays an important role in damping the dynamic trends obser ved for the reactive system alone. (C) 2001 Academic Press.