In this paper, experimental isobaric excess molar enthalpies for the binary mixtures of R-fenchone with butan-1-ol or pentan-1-ol at four temperatures (283.15, 298.15, 313.15 and 328.15) K and atmospheric pressure are reported over the entire composition range. They have been fitted to the Redlich Kister equation at each temperature. Excess molar enthalpies are positive in all cases, being slightly greater for the mixture with pentan-1-ol than for the mixture with butan-1-ol. These positive values of the excess molar enthalpy suggest the predominance of both the effect due to hydrogen bond breaking and physical interactions over the interaction between dissimilar molecules in the mixture. Finally UNIFAC (Dortmund) method and the Quantum Continuum Method COSMO-RS have been used to predict the excess molar enthalpies. Better predictions are obtained in the case of the UNIFAC model. These experimental and modeling results obtained for excess molar enthalpies together with our previously reported ones are jointly discussed to cover binary mixtures containing R-fenchone with short chain alkan-1-ols (C2 C5).
Compounds
#
Formula
Name
1
C10H16O
(-)-fenchone
2
C4H10O
butan-1-ol
3
C5H12O
pentan-1-ol
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
2
Mass density, kg/m3 ; Liquid
Temperature, K; Liquid
Pressure, kPa; Liquid
Liquid
Vibrating tube method
4
POMD
3
Mass density, kg/m3 ; Liquid
Temperature, K; Liquid
Pressure, kPa; Liquid
Liquid
Vibrating tube method
4
POMD
1
2
Excess molar enthalpy (molar enthalpy of mixing), kJ/mol ; Liquid
Temperature, K; Liquid
Mole fraction - 1; Liquid
Pressure, kPa; Liquid
Liquid
Flow calorimetry
44
POMD
1
3
Excess molar enthalpy (molar enthalpy of mixing), kJ/mol ; Liquid