ABSTRACT

Experimental results of dielectric investigations for solutions of the three butanediols {2,3-butanediol (2,3BD), 1,3-butanediol (1,3BD), and 1,4-butanediol (1,4BD)}, in 1,4-dioxane (1,4DX) are reported for various mole fractions at T = 298.2 K. Values of relative permittivity were measured at 100 kHz. The molecular dipole moments were determined using Guggenheim method. The variations of effective dipole moment and correlation factor, g, with mole fraction in these materials were investigated using Kirkwood-Frohlich equation. Dielectric measurements were also carried out on binary polar mixtures of the butanediols with 2-ethyl-1-hexanol (2EH) for various concentrations at T = 298.2 K. The Kirkwood correlation factor, the Bruggeman factor, and the excess permittivity were determined.

Compounds

#	Formula	Name
1	C4H10O2	1,4-butanediol
2	C4H10O2	2,3-butanediol
3	C8H18O	2-ethyl-1-hexanol
4	C4H10O2	1,3-butanediol
5	C4H8O2	1,4-dioxane

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	Relative permittivity at various frequencies ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid Frequency, MHz; Liquid		Liquid	PPCAP:	1
POMD	1	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Vibrating tube method	1
POMD	2	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Standard Abbe refractometry	1
POMD	2	Relative permittivity at various frequencies ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid Frequency, MHz; Liquid		Liquid	PPCAP:	1
POMD	2	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Vibrating tube method	1
POMD	3	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Standard Abbe refractometry	1
POMD	3	Relative permittivity at various frequencies ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid Frequency, MHz; Liquid		Liquid	PPCAP:	1
POMD	3	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Vibrating tube method	1
POMD	4	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Standard Abbe refractometry	1
POMD	4	Relative permittivity at various frequencies ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid Frequency, MHz; Liquid		Liquid	PPCAP:	1
POMD	4	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Vibrating tube method	1
POMD	5 2	Refractive index (Na D-line) ; Liquid	Mole fraction - 2; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid	Liquid	Standard Abbe refractometry	10
POMD	5 2	Relative permittivity at various frequencies ; Liquid	Mole fraction - 2; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid Frequency, MHz; Liquid	Liquid	Parallel plate capacitor	10
POMD	1 5	Refractive index (Na D-line) ; Liquid	Mole fraction - 1; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid	Liquid	Standard Abbe refractometry	10
POMD	1 5	Relative permittivity at various frequencies ; Liquid	Mole fraction - 1; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid Frequency, MHz; Liquid	Liquid	Parallel plate capacitor	10
POMD	4 5	Refractive index (Na D-line) ; Liquid	Mole fraction - 4; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid	Liquid	Standard Abbe refractometry	10
POMD	4 5	Relative permittivity at various frequencies ; Liquid	Mole fraction - 4; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid Frequency, MHz; Liquid	Liquid	Parallel plate capacitor	10
POMD	3 2	Refractive index (Na D-line) ; Liquid	Mole fraction - 2; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid	Liquid	Standard Abbe refractometry	10
POMD	3 2	Relative permittivity at various frequencies ; Liquid	Mole fraction - 2; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid Frequency, MHz; Liquid	Liquid	Parallel plate capacitor	10
POMD	3 2	Mass density, kg/m3 ; Liquid	Mole fraction - 2; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid	Vibrating tube method	10
POMD	3 1	Refractive index (Na D-line) ; Liquid	Mole fraction - 1; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid	Liquid	Standard Abbe refractometry	9
POMD	3 1	Relative permittivity at various frequencies ; Liquid	Mole fraction - 1; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid Frequency, MHz; Liquid	Liquid	Parallel plate capacitor	9
POMD	3 1	Mass density, kg/m3 ; Liquid	Mole fraction - 1; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid	Vibrating tube method	9
POMD	3 4	Refractive index (Na D-line) ; Liquid	Mole fraction - 4; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid	Liquid	Standard Abbe refractometry	9
POMD	3 4	Relative permittivity at various frequencies ; Liquid	Mole fraction - 4; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid Frequency, MHz; Liquid	Liquid	Parallel plate capacitor	9
POMD	3 4	Mass density, kg/m3 ; Liquid	Mole fraction - 4; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid	Vibrating tube method	9

Thermodynamics Research Center / ThermoML | Journal of Chemical Thermodynamics

Dielectric properties of binary mixtures of three butanediols with 1,4-dioxane and 2-ethyl-1-hexanol at T = 298.2 K

Gilani, A. G., Ghanadzadeh, H., Bahrpaima, K.[Kh.], Ranjkesh, A.

ABSTRACT