Back to Search
Start Over
Study of the surface properties and surface concentration of ionic liquid–alcohol mixtures.
- Source :
- Physics & Chemistry of Liquids; Jul/Aug2016, Vol. 54 Issue 4, p529-541, 13p
- Publication Year :
- 2016
-
Abstract
- Surface properties for three binary mixtures containing a 1-butyl-3-methylimidazolium thiocyanate ([BMIM][SCN]) and a long-chain alcohol (1-butanol, 1-pentanol and 1-hexanol) were determined by surface tension data at the following temperatures: (298.15, 308.15, 318.15, 328.15 and 338.15) K. The surface tension data over the entire mole fraction range are correlated by the Fuet al.(FLW) and Myers-Scott (MS) models. There is good agreement between the experimental data and the results of correlations for 15 binary systems (the three systems at five temperatures) with an average relative error below 1.5%. In addition, the UNIFAC group contribution method is applied for calculation of activity coefficients of components in solution. Moreover, the relative adsorptions of alcohol at the air/liquid interface are determined using Gibbs adsorption isotherm. The obtained results show that the values of adsorption for mixtures of alcohols/[BMIM][SCN] increase with increasing the alkyl chain length of alcohol and decreasing temperature. [ABSTRACT FROM AUTHOR]
- Subjects :
- SURFACE chemistry
IONIC liquids
ALCOHOL-water mixtures
IMIDAZOLES
TEMPERATURE effect
Subjects
Details
- Language :
- English
- ISSN :
- 00319104
- Volume :
- 54
- Issue :
- 4
- Database :
- Complementary Index
- Journal :
- Physics & Chemistry of Liquids
- Publication Type :
- Academic Journal
- Accession number :
- 114514408
- Full Text :
- https://doi.org/10.1080/00319104.2015.1121783