Thermodynamics Research Center / ThermoML | Fluid Phase Equilibria

The determination and correlation of the solubility of naproxen in acetone and water mixtures

Huang, H.[Huidan], Cui, Z.[Zhiqin], Wang, Z.[Zhixiang]
Fluid Phase Equilib. 2014, 370, 65-68
ABSTRACT
The equilibrium solubility of the pharmaceutical substance, (S)-(+)-6-Methoxy-alpha-methyl-2-naphthaleneacetic acid (naproxen) in solvent consisting of acetone and water at different volume ratios is determined under different temperatures from 0 C to 20 C in increments of 5 C. NRTL and Wilson models can describe the equilibrium of vapor-liquid and liquid-liquid systems successfully. In this paper they are used to correlate solid-liquid equilibrium for naproxen in acetone and water mixtures. The results show that NRTL and Wilson models correlate the solubilities of naproxen in acetone and water mixtures successfully under different temperatures. The interaction parameters between naproxen and acetone for Wilson and NRTL models are obtained.
Compounds
# Formula Name
1 C14H14O3 (S)-(+)-naproxen
2 H2O water
3 C3H6O acetone
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
  • 3
  • 2
  • 1
  • Mole fraction - 1 ; Liquid
  • Mole fraction - 2; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Crystal - 1
  • Phase equilibration
  • 40