Solubilization of butanol in dodecyldimethylethylammonium bromide micellar solutions

The specific conductivities of dodecyldimethylethylammonium bromide (C12DEABr) have been determined in aqueous-butanol solutions in the temperature range of 15–40 °C. From these data the temperature dependent critical micelle concentration (cmc) was determined. The molar fraction of alcohol in the m...

Full description

Saved in:
Bibliographic Details
Published inFluid phase equilibria Vol. 224; no. 1; pp. 7 - 11
Main Authors GONZALEZ-PEREZ, A, GALAN, J. J, RODRIGUEZ, J. R
Format Journal Article
LanguageEnglish
Published Amsterdam Elsevier B.V 15.09.2004
Elsevier Science
Subjects
Chemistry
Conductivity
Critical micelle concentration
Dodecyldimethylethylammonium bromide
Exact sciences and technology
General and physical chemistry
Phase equilibria
Solubilization
Temperature dependence
Conductivity
Temperature dependence
Dodecyldimethylethylammonium bromide
Critical micelle concentration
Solubilization
Temperature effect
Micelle
Alcohol
Operating conditions
Electrochemical detector
Inorganic anion
Butanol derivatives
Conductometry
Bromides
Micellar solution
Online AccessGet full text

Cover

More Information
Summary:The specific conductivities of dodecyldimethylethylammonium bromide (C12DEABr) have been determined in aqueous-butanol solutions in the temperature range of 15–40 °C. From these data the temperature dependent critical micelle concentration (cmc) was determined. The molar fraction of alcohol in the micelle was estimated using the theory suggested by Motomura et al. [Colloid Polym. Sci. 262 (1984) 948] for surfactant binary mixtures. The standard Gibbs free energy of solubilization of alcohols in the micelles was estimated for the phase separation model, and the results were discussed in comparison with the corresponding alkyltrimethylammonium bromide.
ISSN:0378-3812
1879-0224
DOI:10.1016/j.fluid.2004.06.039