Thermodynamics Research Center / ThermoML | Journal of Chemical Thermodynamics

Excess molar heat capacities for (1-butanol+1,3-butanediol) at temperatures from (285 to 353) K

Zorebski, E.[Edward], Chorazewski, M.[Miroslaw], Tkaczyk, M.[Mariola]
J. Chem. Thermodyn. 2005, 37, 3, 281-287
ABSTRACT
The molar isobaric heat capacities for the binary mixtures (1-butanol + 1,3-butanediol) were determined in the temperature range from (285 to 353) K from measurements of isobaric specific heat capacity in a differential scanning calorimeter. The composition dependencies of the excess molar isobaric heat capacities obtained from the experimental results were fitted by the Redlich-Kister polynomials. Below the temperature 318.15 K the excesses are positive and between the temperatures (323.15 and 348.15) K the excess curves are s-shaped. At the temperature 353.15 K the excess is negative. In addition, the molar isochoric heat capacities at the temperature 298.15 K were estimated.
Compounds
# Formula Name
1 C4H10O butan-1-ol
2 C4H10O2 1,3-butanediol
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
  • Pycnometric method
  • 1
  • POMD
  • 1
  • Molar heat capacity at constant pressure, J/K/mol ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Large sample (1 g) DSC
  • 29
  • POMD
  • 2
  • Mass density, kg/m3 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Pycnometric method
  • 1
  • POMD
  • 2
  • Molar heat capacity at constant pressure, J/K/mol ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Large sample (1 g) DSC
  • 29
  • POMD
  • 1
  • 2
  • Molar heat capacity at constant pressure, J/K/mol ; Liquid
  • Temperature, K; Liquid
  • Mole fraction - 2; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Large sample (1 g) DSC
  • 232