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

ABSTRACT

The binary solid-liquid phase equilibrium for 4-(methylsulfonyl)benzaldehyde in methanol, ethanol, 1-propanol, 2-propanol, 1-butanol, acetone, acetonitrile, toluene and acetic acid were studied experimentally within the temperatures range from (283.15 to 318.15) K under 101.3 kPa by using a static equilibrium method. With the increase in temperature, the solubility of 4-(methylsulfonyl)benzaldehyde in these solvents increased. The solubility values from high to low obeyed the following order in different solvents: acetone greater than acetonitrile greater than acetic acid greater than methanol greater than ethanol greater than toluene greater than 1-butanol greater than 1-propanol greater than 2-propanol. The modified Apelblat equation, eh equation, Wilson model and NRTL model were employed to correlate the experimental solubility of 4-(methylsulfonyl)benzaldehyde in the nine solvents. The calculated solubility with the modified Apelblat equation provided better agreement than those with the other three models. Generally, the regressed results by the four thermodynamic models could be acceptable for 4-(methylsulfonyl)benzaldehyde in the studied solvents. The acquired solubility data could provide a theoretical basis for purification of crude 4-(methylsulfonyl)benzaldehyde