ABSTRACT

In this work, we present the experimental measurements of excess molar enthalpies for the binary systems of dibutyl ether with different isomers of pentanol: 1-pentanol, 2-pentanol, 3-pentanol, 3-methyl- 2-butanol, 2-methyl-1-butanol, 3-methyl-1-butanol and 2-methyl-2-butanol; all of them at T = (298.15 and 308.15) K and atmospheric pressure. Our goal was to determine the influence of the OH-group position on the different isomers of pentanol in the excess molar enthalpies of the binary systems studied. For this purpose we have analysed their experimental effective-reduced dipole moments. All values of excess molar enthalpies for the mixtures studied are positive whereas the results obtained for the effective-reduced dipole moments of the isomers of pentanol are similar.

Compounds

#	Formula	Name
1	C5H12O	pentan-1-ol
2	C5H12O	pentan-2-ol
3	C5H12O	3-pentanol
4	C5H12O	3-methyl-2-butanol
5	C5H12O	2-methyl-1-butanol
6	C5H12O	3-methylbutan-1-ol
7	C5H12O	2-methylbutan-2-ol
8	C8H18O	dibutyl ether

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	Vibrating tube method	2
POMD	1	Relative permittivity at various frequencies ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid Frequency, MHz; Liquid	Liquid	Parallel plate capacitor	2
POMD	2	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	2
POMD	2	Relative permittivity at various frequencies ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid Frequency, MHz; Liquid	Liquid	Parallel plate capacitor	2
POMD	3	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	2
POMD	3	Relative permittivity at various frequencies ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid Frequency, MHz; Liquid	Liquid	Parallel plate capacitor	2
POMD	4	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	2
POMD	4	Relative permittivity at various frequencies ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid Frequency, MHz; Liquid	Liquid	Parallel plate capacitor	2
POMD	5	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	2
POMD	5	Relative permittivity at various frequencies ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid Frequency, MHz; Liquid	Liquid	Parallel plate capacitor	2
POMD	6	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	2
POMD	6	Relative permittivity at various frequencies ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid Frequency, MHz; Liquid	Liquid	Parallel plate capacitor	2
POMD	7	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	2
POMD	7	Relative permittivity at various frequencies ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid Frequency, MHz; Liquid	Liquid	Parallel plate capacitor	2
POMD	8	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	2
POMD	1 8	Excess molar enthalpy (molar enthalpy of mixing), kJ/mol ; Liquid	Temperature, K; Liquid Mole fraction - 8; Liquid	Pressure, kPa; Liquid	Liquid	Calvet calorimetry	31
POMD	8 2	Excess molar enthalpy (molar enthalpy of mixing), kJ/mol ; Liquid	Temperature, K; Liquid Mole fraction - 8; Liquid	Pressure, kPa; Liquid	Liquid	Calvet calorimetry	24
POMD	8 3	Excess molar enthalpy (molar enthalpy of mixing), kJ/mol ; Liquid	Temperature, K; Liquid Mole fraction - 8; Liquid	Pressure, kPa; Liquid	Liquid	Calvet calorimetry	23
POMD	5 8	Excess molar enthalpy (molar enthalpy of mixing), kJ/mol ; Liquid	Temperature, K; Liquid Mole fraction - 8; Liquid	Pressure, kPa; Liquid	Liquid	Calvet calorimetry	24
POMD	7 8	Excess molar enthalpy (molar enthalpy of mixing), kJ/mol ; Liquid	Temperature, K; Liquid Mole fraction - 8; Liquid	Pressure, kPa; Liquid	Liquid	Calvet calorimetry	23
POMD	6 8	Excess molar enthalpy (molar enthalpy of mixing), kJ/mol ; Liquid	Temperature, K; Liquid Mole fraction - 8; Liquid	Pressure, kPa; Liquid	Liquid	Calvet calorimetry	24
POMD	8 4	Excess molar enthalpy (molar enthalpy of mixing), kJ/mol ; Liquid	Temperature, K; Liquid Mole fraction - 8; Liquid	Pressure, kPa; Liquid	Liquid	Calvet calorimetry	24

Thermodynamics Research Center / ThermoML | Journal of Chemical Thermodynamics

Excess molar enthalpies of the binary systems: (Dibutyl ether + isomers of pentanol) at T = (298.15 and 308.15) K

Garcia-Garabal, S.[Sandra], Segade, L.[Luisa], Dominguez-Perez, M.[Montserrat], Cabanas, M.[Manuel], Yanez-Vilar, S.[Susana], Cabeza, O.[Oscar]

ABSTRACT