ABSTRACT

The density and refractive index of ionic liquids (ILs) + water binary mixtures were determined as a function of temperature (from 293.15 to 343.15 K) at atmospheric pressure over the whole composition range in which the mixtures were miscible. To carry out a systematic study, all the ILs selected are imidazolium-based ILs with a different number of carbons in the alkyl chain of the cation and also different anions (tetrafluoroborate, triflate and octylsulphate). Specifically, the studied ILs were 1-ethyl-3-methylimidazolium tetrafluoroborate [emim][BF4], 1-butyl-3methylimidazolium

Compounds

#	Formula	Name
1	C6H11BF4N2	1-ethyl-3-methylimidazolium tetrafluoroborate
2	C8H15BF4N2	1-butyl-3-methylimidazolium tetrafluoroborate
3	C10H19BF4N2	1-hexyl-3-methylimidazolium tetrafluoroborate
4	C12H23BF4N2	1-methyl-3-octylimidazolium tetrafluoroborate
5	C7H11F3N2O3S	1-ethyl-3-methylimidazolium trifluoromethanesulfonate
6	C9H15F3N2O3S	1-butyl-3-methylimidazolium trifluoromethanesulfonate
7	C16H32N2O4S	1-butyl-3-methylimidazolium octyl sulfate
8	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	8	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	7
POMD	8	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Standard Abbe refractometry	6
POMD	1 8	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Mole fraction - 1; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	60
POMD	1 8	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid Mole fraction - 1; Liquid	Pressure, kPa; Liquid	Liquid	Standard Abbe refractometry	60
POMD	2 8	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Mole fraction - 2; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	60
POMD	2 8	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid Mole fraction - 2; Liquid	Pressure, kPa; Liquid	Liquid	Standard Abbe refractometry	60
POMD	3 8	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Mole fraction - 3; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	48
POMD	3 8	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid Mole fraction - 3; Liquid	Pressure, kPa; Liquid	Liquid	Standard Abbe refractometry	48
POMD	4 8	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Mole fraction - 4; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	48
POMD	4 8	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid Mole fraction - 4; Liquid	Pressure, kPa; Liquid	Liquid	Standard Abbe refractometry	48
POMD	5 8	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Mole fraction - 5; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	60
POMD	5 8	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid Mole fraction - 5; Liquid	Pressure, kPa; Liquid	Liquid	Standard Abbe refractometry	60
POMD	6 8	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Mole fraction - 6; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	60
POMD	6 8	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid Mole fraction - 6; Liquid	Pressure, kPa; Liquid	Liquid	Standard Abbe refractometry	60
POMD	7 8	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Mole fraction - 7; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	60
POMD	7 8	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid Mole fraction - 7; Liquid	Pressure, kPa; Liquid	Liquid	Standard Abbe refractometry	60

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

Density, Refractive Index and Volumetric Properties of Water-Ionic Liquid Binary Systems with Imidazolium-Based Cations and Tetrafluoroborate, Triflate and Octylsulfate Anions at T = 293 to 343 K and p = 0.1 MPa

Carissimi, Guzman, Montalban, Mercedes G., Banos, F. Guillermo Diaz, Villora, Gloria

ABSTRACT