ABSTRACT

The liquid-liquid coexistence curves for {x nitrobenzene + (1 - x) 2-methylpentane} and {x nitrobenzene + (1 - x) isooctane} were measured and the critical exponents and the critical amplitudes are deduced. The critical exponents were found to be consistent with the 3D-Ising value. The experiment results are analyzed to examine the dependences of the width and the asymmetry of the coexistence curves on the molar volume of the branched alkane. These dependences were also discussed through the Landau-Ginsburg-Wilson type model and the complete scaling theory.

Compounds

#	Formula	Name
1	C6H5NO2	nitrobenzene
2	C6H14	2-methylpentane
3	C8H18	2,2,4-trimethylpentane

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 2	Critical temperature, K ; Liquid	Mole fraction - 1; Liquid		Liquid Gas	Visual observation in an unstirred cell	1
POMD	1 2	Mole fraction - 1 ; Liquid mixture 1	Temperature, K; Liquid mixture 1	Pressure, kPa; Liquid mixture 2	Liquid mixture 1 Liquid mixture 2	Phase equilibration	22
POMD	1 2	Mole fraction - 1 ; Liquid mixture 2	Temperature, K; Liquid mixture 1	Pressure, kPa; Liquid mixture 1	Liquid mixture 2 Liquid mixture 1	Phase equilibration	22
POMD	1 2	Refractive index (other wavelength) ; Liquid mixture 1	Temperature, K; Liquid mixture 1	Pressure, kPa; Liquid mixture 1 Wavelength, nm; Liquid mixture 1	Liquid mixture 1 Liquid mixture 2	minimum deviation angle	22
POMD	1 2	Refractive index (other wavelength) ; Liquid mixture 2	Temperature, K; Liquid mixture 2	Pressure, kPa; Liquid mixture 2 Wavelength, nm; Liquid mixture 2	Liquid mixture 2 Liquid mixture 1	minimum deviation angle	22
POMD	1 2	Refractive index (other wavelength) ; Liquid	Mole fraction - 1; Liquid Temperature, K; Liquid	Pressure, kPa; Liquid Wavelength, nm; Liquid	Liquid	minimum deviation angle	69
POMD	1 3	Critical temperature, K ; Liquid	Mole fraction - 1; Liquid		Liquid Gas	Visual observation in an unstirred cell	1
POMD	1 3	Mole fraction - 1 ; Liquid mixture 1	Temperature, K; Liquid mixture 1	Pressure, kPa; Liquid mixture 2	Liquid mixture 1 Liquid mixture 2	Phase equilibration	24
POMD	1 3	Mole fraction - 1 ; Liquid mixture 2	Temperature, K; Liquid mixture 1	Pressure, kPa; Liquid mixture 1	Liquid mixture 2 Liquid mixture 1	Phase equilibration	24
POMD	1 3	Refractive index (other wavelength) ; Liquid mixture 1	Temperature, K; Liquid mixture 1	Pressure, kPa; Liquid mixture 1 Wavelength, nm; Liquid mixture 1	Liquid mixture 1 Liquid mixture 2	minimum deviation angle	24
POMD	1 3	Refractive index (other wavelength) ; Liquid mixture 2	Temperature, K; Liquid mixture 2	Pressure, kPa; Liquid mixture 2 Wavelength, nm; Liquid mixture 2	Liquid mixture 2 Liquid mixture 1	minimum deviation angle	24
POMD	1 3	Refractive index (other wavelength) ; Liquid	Mole fraction - 1; Liquid Temperature, K; Liquid	Pressure, kPa; Liquid Wavelength, nm; Liquid	Liquid	minimum deviation angle	79

Thermodynamics Research Center / ThermoML | Fluid Phase Equilibria

The liquid-liquid coexistence curves of {x nitrobenzene + (1 - x) 2-methylpentane} and {x nitrobenzene + (1 - x) isooctane} in the critical region

Du, Z.[Zhongyu], Yin, T.[Tianxiang], Xia, Y.[Yangjun], Cui, Z.[Zhencun], Shen, W.[Weiguo]

ABSTRACT