ABSTRACT

Molar excess volumes, , and speeds of sound, u ijk , of 2-pyrrolidinone (2-Py) (i) + toluene (j) + o-xylene or p-xylene (k) ternary mixtures have been determined by using a dilatometer and interferometer as a function of composition at 308.15 K. The speeds of sound of ternary mixtures have been utilized to predict their excess isentropic compressibilities. The Redlich-Kister equation has been fitted to the molar excess volumes, , and excess isentropic compressibilities, , to predict ternary adjustable parameters and standard deviations. The observed data have been analyzed in terms of the Flory theory and the Sanchez and Lacombe theory.

Compounds

#	Formula	Name
1	C4H7NO	2-pyrrolidinone
2	C7H8	toluene
3	C8H10	1,2-dimethylbenzene
4	C8H10	1,4-dimethylbenzene

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	Pycnometric method	1
POMD	2	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Pycnometric method	1
POMD	3	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Pycnometric method	1
POMD	4	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Pycnometric method	1
POMD	3 2 1	Speed of sound, m/s ; Liquid	Mole fraction - 1; Liquid Mole fraction - 2; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid	Sing-around technique in a fixed-path interferometer	16
POMD	3 2 1	Excess molar volume, m3/mol ; Liquid	Mole fraction - 1; Liquid Mole fraction - 2; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid	Direct dilatometry	15
POMD	4 2 1	Speed of sound, m/s ; Liquid	Mole fraction - 1; Liquid Mole fraction - 2; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid	Sing-around technique in a fixed-path interferometer	14
POMD	4 2 1	Excess molar volume, m3/mol ; Liquid	Mole fraction - 1; Liquid Mole fraction - 2; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid	Direct dilatometry	17

Thermodynamics Research Center / ThermoML | International Journal of Thermophysics

Thermodynamic Properties of Ternary Liquid Mixtures of 2-Pyrrolidinone with Aromatic Hydrocarbons

Yadav, J. S.[Jaibir S.], Sharma, D.[Dimple], Sharma, V. K.[Vinod Kumar]

ABSTRACT