ABSTRACT

We report the density (F) and speed of sound (u) data for 1-butyl-3-methylimidazolium hexafluorophosphate ([BMIM][PF6]) + methanol and ([BMIM][PF6]) + acetonitrile binary mixtures over the entire range of their compositions at T ) (298.15 to 318.15) K. From these data, excess molar volume and isentropic compressibility deviation values have been calculated and fitted to the fourth-order Redlich-Kister equation. The excess molar volume values (VE) for acetonitrile mixtures are more negative than methanol mixtures. Isentropic compressibility deviation values (cents?s) in methanol mixtures are more than acetonitrile mixtures. The results have been interpreted in terms of ion-dipole interactions and structural factors of the ionic liquid and these organic solvents.

Compounds

#	Formula	Name
1	C8H15F6N2P	1-butyl-3-methylimidazolium hexafluorophosphate
2	C2H3N	acetonitrile
3	CH4O	methanol

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	Speed of sound, m/s ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	LVPAI:UFactor:4	5
POMD	1	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	VIBTUB:UFactor:16	5
POMD	2	Speed of sound, m/s ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	LVPAI:UFactor:4	5
POMD	2	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	VIBTUB:UFactor:16	5
POMD	3	Speed of sound, m/s ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	LVPAI:UFactor:4	5
POMD	3	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	VIBTUB:UFactor:16	5
POMD	2 1	Speed of sound, m/s ; Liquid	Temperature, K; Liquid Mole fraction - 1; Liquid	Pressure, kPa; Liquid	Liquid	LVPAI:UFactor:4	60
POMD	2 1	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Mole fraction - 1; Liquid	Pressure, kPa; Liquid	Liquid	VIBTUB:UFactor:16	60
POMD	3 1	Speed of sound, m/s ; Liquid	Temperature, K; Liquid Mole fraction - 1; Liquid	Pressure, kPa; Liquid	Liquid	LVPAI:UFactor:4	60
POMD	3 1	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Mole fraction - 1; Liquid	Pressure, kPa; Liquid	Liquid	VIBTUB:UFactor:16	60

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

Volumetric and Speed of Sound of Ionic Liquid, 1-Butyl-3-methylimidazolium Hexafluorophosphate with Acetonitrile and Methanol at T ) (298.15 to 318.15) K

Zafarani-Moattar, M. T.[Mohamed], Shekaari, H.[Hemayat]

ABSTRACT