Thermodynamics Research Center / ThermoML | Thermochimica Acta

Enthalpies of solution of l-threonine in aqueous alcohol solutions

Xu, N.[Nan], Ma, L.[Lin], Lin, R.[Ruisen]
Thermochim. Acta 2005, 439, 1-2, 119-120
ABSTRACT
Enthalpies of solution of l-threonine in aqueous solutions of isopropanol, 1,2-propanediol and propanetriol were measured and enthalpies of transfer of l-threonine from water to these solutions calculated. Endothermic interactions, partial dehydrations and the interaction between alkyl groups, dominate exothermic interaction between polar groups.
Compounds
# Formula Name
1 H2O water
2 C4H9NO3 L-threonine
3 C3H8O propan-2-ol
4 C3H8O2 1,2-propanediol
5 C3H8O3 glycerol
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
  • 1
  • Molar enthalpy of solution, kJ/mol ; Liquid
  • Mole fraction - 2; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • CALVET:solid
  • 1
  • POMD
  • 3
  • 2
  • 1
  • Molar enthalpy of solution, kJ/mol ; Liquid
  • Solvent: Molality, mol/kg - 3; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Molality, mol/kg - 2; Liquid
  • Liquid
  • CALVET:solid
  • 8
  • POMD
  • 4
  • 2
  • 1
  • Molar enthalpy of solution, kJ/mol ; Liquid
  • Solvent: Molality, mol/kg - 4; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Molality, mol/kg - 2; Liquid
  • Liquid
  • CALVET:solid
  • 9
  • POMD
  • 5
  • 2
  • 1
  • Molar enthalpy of solution, kJ/mol ; Liquid
  • Solvent: Molality, mol/kg - 5; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Molality, mol/kg - 2; Liquid
  • Liquid
  • CALVET:solid
  • 8