ABSTRACT

The coexistence curves and light scattering data for a critical solution of (benzonitrile + dodecane) have been reported. The critical exponents relating to the difference in density variables of two coexisting phases b, the correlation length m, and the osmotic compressibility c have been determined. The experimental results of the coexistence curves have also been analyzed to examine the Wegner correction terms and the behavior of the diameter of the coexistence curves. The data analysis shows that the 3D-Ising behavior is valid in a temperature range close to the critical point. However, in a wide temperature range the exponential values of m and c change with the temperature significantly, clearly exhibiting the critical crossover from the 3D-Ising universality class to the classical one.

Compounds

#	Formula	Name
1	C7H5N	benzonitrile
2	C12H26	dodecane

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 (other wavelength) ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid Wavelength, nm; Liquid	Liquid	Standard Abbe refractometry	6
POMD	2	Refractive index (other wavelength) ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid Wavelength, nm; Liquid	Liquid	Standard Abbe refractometry	7
POMD	1 2	Refractive index (other wavelength) ; Liquid	Mole fraction - 1; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid Wavelength, nm; Liquid	Liquid	ABBE:UFactor:2	9
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	Standard Abbe refractometry	27
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	Standard Abbe refractometry	27
POMD	1 2	Mole fraction - 1 ; Liquid mixture 1	Temperature, K; Liquid mixture 1	Pressure, kPa; Liquid mixture 1	Liquid mixture 1 Liquid mixture 2	Index of refraction calibration data	27
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	Index of refraction calibration data	27

Thermodynamics Research Center / ThermoML | Journal of Chemical Thermodynamics

The measurements of coexistence curves and light scattering for {xC6H5CN+(1-x)CH3(CH2)10CH3} in the critical region

Mao, C.[Chunfeng], Wang, N.[Nong], Peng, X.[Xuhong], An, X.[Xueqin], Sheng, W.[Weiguo]

ABSTRACT