ABSTRACT

Phase behaviors of aqueous biphasic systems (ABSs) composed of 1-butyl-3-methyl imidazolium tetrafluoroborate ([bmim]BF4) + sucrose/maltose + water were reported in this work. Phase diagrams, including binodal curves, tie-lines, and the slope of tie-line (STL) were obtained at temperatures of T = (278.15, 288.15, 298.15, and 308.15) K. The binodal curve data were correlated using an empirical equation, and the tie-line data were correlated according to Othmer-Tobias and Bancroft equations. Good agreements with the experimental data were obtained, and results showed that these equations can be satisfactorily used to correlate the experimental data of the investigated systems at the given temperatures.

Compounds

#	Formula	Name
1	C8H15BF4N2	1-butyl-3-methylimidazolium tetrafluoroborate
2	C12H22O11	D-sucrose
3	C12H22O11	D-maltose
4	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	2 4 1	Mass fraction - 2 ; Liquid mixture 1	Temperature, K; Liquid mixture 1 Mass fraction - 1; Liquid mixture 1	Pressure, kPa; Liquid mixture 1	Liquid mixture 1 Liquid mixture 2	Titration method	128
POMD	2 4 1	Mass fraction - 2 ; Liquid mixture 1 Mass fraction - 1 ; Liquid mixture 2 Mass fraction - 2 ; Liquid mixture 2	Temperature, K; Liquid mixture 2 Mass fraction - 1; Liquid mixture 1	Pressure, kPa; Liquid mixture 2	Liquid mixture 1 Liquid mixture 2	Chromatography Chromatography Chromatography	16
POMD	3 4 1	Mass fraction - 3 ; Liquid mixture 1	Temperature, K; Liquid mixture 1 Mass fraction - 1; Liquid mixture 1	Pressure, kPa; Liquid mixture 1	Liquid mixture 1 Liquid mixture 2	Titration method	64
POMD	3 4 1	Mass fraction - 3 ; Liquid mixture 1 Mass fraction - 1 ; Liquid mixture 2 Mass fraction - 3 ; Liquid mixture 2	Temperature, K; Liquid mixture 2 Mass fraction - 1; Liquid mixture 1	Pressure, kPa; Liquid mixture 2	Liquid mixture 1 Liquid mixture 2	Chromatography Chromatography Chromatography	16

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

Liquid-Liquid Equilibria of Aqueous Biphasic Systems Composed of 1-Butyl-3-methyl Imidazolium Tetrafluoroborate + Sucrose/Maltose + Water

Chen, Y.[Yuhuan], Meng, Y.[Yanshan], Zhang, S.[Shuming], Zhang, Y.[Ying], Liu, X.[Xiuwu], Yang, J.[Jin]

ABSTRACT