ABSTRACT

The liquid-liquid coexistence curves for the binary solutions of the room temperature ionic liquid (RTIL)1-methyl-3-octylimidazolium tetrafluoroborate ([C8mim][BF4]) in 1-pentanol and 1-hexanol were measured in the critical region. The critical exponent beta and the critical amplitude B were deduced and the former was found to be consistent with the 3D-Ising value. The complete scaling theory was applied to describe the asymmetry of the diameters of the coexistence curves. Moreover, the dependences of the critical temperature, the critical mole fraction, the reduced critical temperature and the reduced critical density on the permittivity of alcohol for a series of binary solutions of RTIL in alcohols were discussed.

Compounds

#	Formula	Name
1	C5H12O	pentan-1-ol
2	C6H14O	hexan-1-ol
3	C12H23BF4N2	1-methyl-3-octylimidazolium tetrafluoroborate

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 3	Refractive index (other wavelength) ; Liquid	Temperature, K; Liquid Mole fraction - 3; Liquid	Pressure, kPa; Liquid Wavelength, nm; Liquid	Liquid	minimum deviation angle	82
POMD	1 3	Refractive index (other wavelength) ; Liquid	Mole fraction - 3; Liquid Temperature, K; Liquid	Pressure, kPa; Liquid Wavelength, nm; Liquid	Liquid	minimum deviation angle	62
POMD	2 3	Refractive index (other wavelength) ; Liquid	Temperature, K; Liquid Mole fraction - 3; Liquid	Pressure, kPa; Liquid Wavelength, nm; Liquid	Liquid	minimum deviation angle	92
POMD	2 3	Refractive index (other wavelength) ; Liquid	Mole fraction - 3; Liquid Temperature, K; Liquid	Pressure, kPa; Liquid Wavelength, nm; Liquid	Liquid	minimum deviation angle	70

Thermodynamics Research Center / ThermoML | Fluid Phase Equilibria

Liquid-liquid phase equilibria of ionic liquid solutions in the critical region: 1-Methyl-3-octylimidazolium tetrafluoroborate with1-pentanol or 1-hexanol

Hao, Z.[Zhiguo], Cui, Z.[Zhencun], Yin, T.[Tianxiang], Zheng, P.[Peizhu], Zhao, J.[Jihua], Shen, W.[Weiguo]

ABSTRACT