PHASE EQUILIBRIA IN AQUEOUS LOW MOLECULAR CATANIONIC SURFACTANT SYSTEMS
作者:
Sune Backlund,
Stefan Karlsson,
Johan Sjöblom,
期刊:
Journal of Dispersion Science and Technology
(Taylor Available online 1994)
卷期:
Volume 15,
issue 5
页码: 561-573
ISSN:0193-2691
年代: 1994
DOI:10.1080/01932699408943574
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
Phase equilibria in systems alkanoic acid-alkylamine-water have been determined at 298.2 K. In the system hexanoic acid (A) - hexylamine (B) only one isotropic solution phase is formed. This solution phase is in eqilibrium with almost pure water. The strong A1B1complex shows catanionic surfactant properties as concluded from phase equilibria studies in the system A1B1-heptane-water. This system behaves like ordinary microemulsions. The dominant feature of the phase diagram with ethanoic acid -dodecylamine is the large D phase. In addition there exist a large solution phase, a hexagonal phase and a small cubic I phase.
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