ABSTRACT

The aggregation behavior in binary mixtures of two surfactants, 1-hexadecyl- 3-methylimidazolium chloride and dodecyltrimethylammonium bromide has been investigated in aqueous solutions using conductometric, tensiometric, spectrofluorimetric and Zeta potential measurements. The counterion-binding, aggregation number, and anisotropy of the micellar environment have been ascertained. The results have been analyzed on the basis of the theories of Clint, Rubingh, and Motomura. The thermodynamic parameters of the micellization process have been evaluated and discussed. The interfacial adsorptions of the mixed surfactants including their surface excesses and head-group areas have also been evaluated. Existence of an attractive interaction among the constituents of the mixed surfactant systems investigated has been inferred.

Compounds

#	Formula	Name
1	C20H39ClN2	1-hexadecyl-3-methylimidazolium chloride
2	C15H34BrN	dodecyltrimethylammonium bromide
3	H2O	water

Datasets

The table above is generated from the ThermoML associated json file (link above). POMD and RXND refer to PureOrMixture and Reaction Datasets. The compound numbers are included in properties, variables, and phases, if specificied; the numbers refer to the table of compounds on the left.
Type	Compound-#	Property	Variable	Constraint	Phase	Method	#Points
POMD	3	Surface tension liquid-gas, N/m ; Liquid	Temperature, K; Liquid		Liquid Gas	Ring tensiometer	1
POMD	1 2 3	Electrical conductivity, S/m ; Liquid	Molality, mol/kg - 1; Liquid Molality, mol/kg - 2; Liquid Temperature, K; Liquid	Pressure, kPa; Liquid Frequency, MHz; Liquid	Liquid	Alternating current cell with electrodes	792
POMD	1 2 3	Surface tension liquid-gas, N/m ; Liquid	Molality, mol/kg - 1; Liquid Molality, mol/kg - 2; Liquid	Temperature, K; Liquid	Liquid Gas	Ring tensiometer	200
POMD	1 3	Electrical conductivity, S/m ; Liquid	Molality, mol/kg - 1; Liquid Temperature, K; Liquid	Pressure, kPa; Liquid Frequency, MHz; Liquid	Liquid	Alternating current cell with electrodes	54
POMD	1 3	Surface tension liquid-gas, N/m ; Liquid	Molality, mol/kg - 1; Liquid	Temperature, K; Liquid	Liquid Gas	Ring tensiometer	9
POMD	2 3	Electrical conductivity, S/m ; Liquid	Molality, mol/kg - 2; Liquid Temperature, K; Liquid	Pressure, kPa; Liquid Frequency, MHz; Liquid	Liquid	Alternating current cell with electrodes	60
POMD	2 3	Surface tension liquid-gas, N/m ; Liquid	Molality, mol/kg - 2; Liquid	Temperature, K; Liquid	Liquid Gas	Ring tensiometer	15

Thermodynamics Research Center / ThermoML | Journal of Chemical and Engineering Data

Formation of Mixed Micelle in an Aqueous Mixture of a Surface Active Ionic Liquid and a Conventional Surfactant: Experiment and Modeling

Das, Sourav, Ghosh, Soumen, Das, Bijan

ABSTRACT