ABSTRACT

Densities of binary mixtures formed by benzene, or toluene, or ethylbenzene with N-methyl-2-pyrrolidone have been measured over the full range of compositions at atmospheric pressure and various temperatures by means of a vibrating-tube densimeter. The excess molar volume calculated from the density data provide the temperature dependence of in the temperature range of (293.15 to 353.15) K. The results were correlated using the fourth-order Redlich Kister polynomial equation, with the maximum likelihood principle being applied for the determination of the adjustable parameters. Partial molar volumes of two components were also calculated. It was found that the in the systems studied decrease with rising temperature.

Compounds

#	Formula	Name
1	C5H9NO	N-methylpyrrolidone
2	C6H6	benzene
3	C7H8	toluene
4	C8H10	ethylbenzene

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	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Standard Abbe refractometry	1
POMD	1	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	VIBTUB:UFactor:8	7
POMD	2	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Standard Abbe refractometry	1
POMD	2	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	VIBTUB:UFactor:8	6
POMD	3	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Standard Abbe refractometry	1
POMD	3	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	VIBTUB:UFactor:16	7
POMD	4	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Standard Abbe refractometry	1
POMD	4	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	VIBTUB:UFactor:8	7
POMD	2 1	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Mole fraction - 2; Liquid	Pressure, kPa; Liquid	Liquid	VIBTUB:UFactor:8	102
POMD	3 1	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Mole fraction - 3; Liquid	Pressure, kPa; Liquid	Liquid	VIBTUB:UFactor:16	119
POMD	4 1	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Mole fraction - 4; Liquid	Pressure, kPa; Liquid	Liquid	VIBTUB:UFactor:8	119

Thermodynamics Research Center / ThermoML | Journal of Chemical Thermodynamics

Densities and volumetric properties of N-methyl-2-pyrrolidone with aromatic hydrocarbon at different temperature

Ye, W.[Weidong], Shen, R.[Runpu], Liu, W.[Wei], Chen, J.[Jianhui]

ABSTRACT