Thermodynamics Research Center / ThermoML | Journal of Chemical Thermodynamics

Partial molar volumes of organic solutes in water. XXV. Branched aliphatic diols at temperatures (298 to 573) K and pressures up to 30 MPa

Cibulka, I.[Ivan]
J. Chem. Thermodyn. 2014, 71, 19-26
ABSTRACT
Densities of dilute aqueous solutions of three branched diols derived from propane-1,3-diol (2-methyl-2- propylpropane-1,3-diol, 2,2-diethylpropane-1,3-diol, and 2-ethyl-2-butylpropane-1,3-diol) and of 3-methylpentane-1,5-diol measured over the temperature range from (298 to 573) K and at pressures up to 30 MPa using a flow vibrating-tube densimeter are reported. Standard molar volumes were evaluated from the measured data. Present data were combined with those obtained previously for related solutes and relations to the structures of solute molecules are discussed. Predictions of standard molar volumes based on group contribution approach were tested and analysed
Compounds
# Formula Name
1 C7H16O2 2-methyl-2-propyl-1,3-propanediol
2 C7H16O2 2,2-diethyl-1,3-propanediol
3 C9H20O2 2-butyl-2-ethyl-1,3-propanediol
4 C6H14O2 1,5-dihydroxy-3-methylpentane
5 H2O water
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
  • 5
  • Mass density, kg/m3 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Molality, mol/kg - 1; Liquid
  • Liquid
  • Vibrating tube method
  • 588
  • POMD
  • 2
  • 5
  • Mass density, kg/m3 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Molality, mol/kg - 2; Liquid
  • Liquid
  • Vibrating tube method
  • 590
  • POMD
  • 3
  • 5
  • Mass density, kg/m3 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Molality, mol/kg - 3; Liquid
  • Liquid
  • Vibrating tube method
  • 459
  • POMD
  • 4
  • 5
  • Mass density, kg/m3 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Molality, mol/kg - 4; Liquid
  • Liquid
  • Vibrating tube method
  • 682