Solubility of citalopram hydrobromide in(ethanol + toluene) and (ethanol + ethyl acetate) at 283.15-318.15 K and its correlation with the Jouyban-Acree and CNIBS/R-K models
The solubility of citalopram hydrobromide in ethanol mixed with cosolvent toluene and ethyl acetate was measured at temperatures from 283.15 to 318.15 K to study the solubility improvement of the poorly soluble drug. The solubility increases with increasing cosolvent mass fraction w to a maximum value at w = 0.6 and then decreases. The Jouyban-Acree model and CNIBS/R-K model are applied to correlate the solubility. All the values of RMSD and RAD are no more than 5.36 * 10-2 and 5.72 * 10-4, respectively. Apparent thermodynamic analysis indicate that the dissolution is an endothermic, spontaneous and entropy driven process. More importantly, the effect of cosolvent on the dissolution process for citalopram hydrobromide is an important aspect of its purification, recrystallization and clinical application.
Compounds
#
Formula
Name
1
C20H22BrFN2O
Citalopram hydrobromide
2
C7H8
toluene
3
C2H6O
ethanol
4
C4H8O2
ethyl acetate
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.