Thermodynamics Research Center / ThermoML | Journal of Chemical and Engineering Data

Measurement and Correlation of Solubility of Calcium-l-lactate Pentahydrate in Ethanol + Water and Acetone + Water Systems

Luan, Q.[Qinghua], Wang, Y.[Yongli], Wang, G.[Guan], Yang, J.[Jingxiang], Hao, H.[Hongxun]
J. Chem. Eng. Data 2014, 59, 8, 2642-2648
ABSTRACT
The solubility of calcium-l-lactate pentahydrate (CLLP) in binary ethanol + water and acetone + water solvent mixtures was measured in the temperature range of 278.15 K to 313.15 K by using a synthetic method. The solubility of CLLP increases with increasing temperature, whereas it decreases with the increase of the initial mole fraction of ethanol or acetone. The solubility data were correlated by using the modified Apelblat equation, the CNIBS/R-K equation, and the hybrid model, respectively. It was found that the modified Apelblat equation could give better correlation results both in ethanol aqueous solutions and in acetone aqueous solutions. The dissolution enthalpy, entropy, and Gibbs energy change of dissolution of CLLP in these solvent mixtures were obtained by using the modified van t Hoff equation.
Compounds
# Formula Name
1 H2O water
2 C2H6O ethanol
3 C3H6O acetone
4 C6H20CaO11 calcium-L-lactate pentahydrate
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
  • 4
  • Mole fraction - 4 ; Liquid
  • Temperature, K; Liquid
  • Solvent: Mole fraction - 2; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Crystal - 4
  • Titration method
  • 72
  • POMD
  • 3
  • 1
  • 4
  • Mole fraction - 4 ; Liquid
  • Temperature, K; Liquid
  • Solvent: Mole fraction - 3; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Crystal - 4
  • Titration method
  • 72
  • POMD
  • 1
  • 4
  • Mole fraction - 4 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Crystal - 4
  • Titration method
  • 9