ABSTRACT

In this paper, experimental densities and dynamic viscosities of 1-ethyl-3-methylimidazolium based ionic liquids (ILs) with the anions acetate and dicyanamide are presented in a wide temperature range (298.15 K to 343.15 K) at atmospheric pressure. Surface tension of these ILs was measured at T = 298.15 K. The effect of water and/or ethanol compositions on densities and dynamic viscosities of these ILs are studied in binary and ternary mixtures. The Eyring-Patel-Teja model, which is recommended for polar-polar and aqueous systems, is used to correlate dynamic viscosity data over the whole range of compositions and temperatures in binary and ternary mixtures. Temperature-dependent interaction parameters are introduced here to account for the changes of viscosities with temperature showing good agreements with experimental data.

Compounds

#	Formula	Name
1	C8H14N2O2	1-ethyl-3-methylimidazolium acetate
2	C8H11N5	1-ethyl-3-methylimidazolium dicyanamide
3	H2O	water
4	C2H6O	ethanol
5	C8H16N2O4S	1-ethyl-3-methylimidazolium ethyl sulfate

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	1	Surface tension liquid-gas, N/m ; Liquid	Temperature, K; Liquid		Liquid Gas	Ring tensiometer	1
POMD	1	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Capillary tube (Ostwald; Ubbelohde) method	10
POMD	1	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	10
POMD	2	Surface tension liquid-gas, N/m ; Liquid	Temperature, K; Liquid		Liquid Gas	Ring tensiometer	1
POMD	2	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Capillary tube (Ostwald; Ubbelohde) method	10
POMD	2	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	10
POMD	3	Surface tension liquid-gas, N/m ; Liquid	Temperature, K; Liquid		Liquid Gas	Ring tensiometer	1
POMD	3	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Capillary tube (Ostwald; Ubbelohde) method	1
POMD	3	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Vibrating tube method	1
POMD	4	Surface tension liquid-gas, N/m ; Liquid	Temperature, K; Liquid		Liquid Gas	Ring tensiometer	1
POMD	4	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Capillary tube (Ostwald; Ubbelohde) method	1
POMD	4	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Vibrating tube method	1
POMD	5	Surface tension liquid-gas, N/m ; Liquid	Temperature, K; Liquid		Liquid Gas	Ring tensiometer	1
POMD	5	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Capillary tube (Ostwald; Ubbelohde) method	1
POMD	5	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Vibrating tube method	1
POMD	3 2	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid Mole fraction - 3; Liquid	Pressure, kPa; Liquid	Liquid	Capillary tube (Ostwald; Ubbelohde) method	48
POMD	3 2	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Mole fraction - 3; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	48
POMD	3 1	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid Mole fraction - 3; Liquid	Pressure, kPa; Liquid	Liquid	Capillary tube (Ostwald; Ubbelohde) method	48
POMD	3 1	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Mole fraction - 3; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	48
POMD	4 1	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid Mole fraction - 4; Liquid	Pressure, kPa; Liquid	Liquid	Capillary tube (Ostwald; Ubbelohde) method	48
POMD	4 1	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Mole fraction - 4; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	48
POMD	4 2	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid Mole fraction - 4; Liquid	Pressure, kPa; Liquid	Liquid	Capillary tube (Ostwald; Ubbelohde) method	48
POMD	4 2	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Mole fraction - 4; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	48
POMD	4 3 1	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid Mole fraction - 3; Liquid Mole fraction - 4; Liquid	Pressure, kPa; Liquid	Liquid	Capillary tube (Ostwald; Ubbelohde) method	36
POMD	4 3 1	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Mole fraction - 3; Liquid Mole fraction - 4; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	36
POMD	4 3 2	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid Mole fraction - 3; Liquid Mole fraction - 4; Liquid	Pressure, kPa; Liquid	Liquid	Capillary tube (Ostwald; Ubbelohde) method	35
POMD	4 3 2	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Mole fraction - 3; Liquid Mole fraction - 4; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	35

Thermodynamics Research Center / ThermoML | Journal of Chemical Thermodynamics

Experimental densities, dynamic viscosities and surface tensions of the ionic liquids series 1-ethyl-3-methylimizazolium acetate and dicyanamide and their binary and ternary mixtures with water and ethanol at T = (298.15 K to 343.15 K)

Quijada, E., Boogaart, S. v. d., Lijbers, J. H., Meindersma, G. W., Haan, A. B. d.[Andre B. de]

ABSTRACT