ABSTRACT

Physical properties, such as density (rho) and speed of sound (u) of 1-ethyl-3-methylimidazolium trifluoromethanesulfonate, 2-ethoxyethanol/2-propoxyethanol and their binary mixtures are measured over the whole composition range as a function of temperature between 298.15 K and 318.15 K at atmospheric pressure. Experimental values were used to calculate the excess molar volumes (VmE), excess values of partial molar volumes (V-mE), excess values of isentropic compressibility (kappasE), free length (LfE), speeds of sound (uE) and isobaric thermal expansion coefficient (alphaPE) for the binary mixtures. These excess properties were fitted to the Redlich-Kister type equation to obtain the binary coefficients and the standard deviations. A qualitative analysis of these parameters indicates the interaction decreases with the increase in chain length. This was further supported by Prigogine-Flory-Patterson (PFP) theory of excess molar volume.

Compounds

#	Formula	Name
1	C7H11F3N2O3S	1-ethyl-3-methylimidazolium trifluoromethanesulfonate
2	C4H10O2	2-ethoxyethan-1-ol
3	C5H12O2	2-propoxyethanol

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	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	5
POMD	1	Speed of sound, m/s ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid Frequency, MHz; Liquid	Liquid	Single path-length method	5
POMD	2	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	5
POMD	2	Speed of sound, m/s ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid Frequency, MHz; Liquid	Liquid	Single path-length method	5
POMD	3	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	5
POMD	3	Speed of sound, m/s ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid Frequency, MHz; Liquid	Liquid	Single path-length method	5
POMD	1 2	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Mole fraction - 1; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	75
POMD	1 2	Speed of sound, m/s ; Liquid	Temperature, K; Liquid Mole fraction - 1; Liquid	Pressure, kPa; Liquid Frequency, MHz; Liquid	Liquid	Single path-length method	75
POMD	1 3	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Mole fraction - 1; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	75
POMD	1 3	Speed of sound, m/s ; Liquid	Temperature, K; Liquid Mole fraction - 1; Liquid	Pressure, kPa; Liquid Frequency, MHz; Liquid	Liquid	Single path-length method	75

Thermodynamics Research Center / ThermoML | Journal of Chemical Thermodynamics

An experimental investigation of molecular interactions between [Emim][triflate] ionic liquid & 2-alkoxyethanols and theoretical comparison by PFP theory

Aangothu, Sreenivasa Rao, Munnangi, Srinivasa Reddy, Raju K, Thomas S.S., Bollikolla, Hari Babu

ABSTRACT