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

ABSTRACT

The solubilities of 1-(2-bromo-phenyl)-pyrrole-2,5-dione in fourteen pure solvents including isopropanol, methanol, isobutanol, ethanol, n-propanol, n-butanol, ethylene glycol (EG), cyclohexane, acetone, acetonitrile, N-methyl-2-pyrrolidinone (NMP), N,N-dimethyl formamide (DMF), water and dimethylsulfoxide (DMSO) were determined through the shake-flask method over the temperature range from 278.15 K to 323.15 K under 101.2 kPa. The values of mole fraction solubility of 1-(2-bromo-phenyl)-pyrrole-2,5-dione in above pure solvents increased as the temperature raised and presented the order in different pure solvents: DMF greater than NMP greater than DMSO greater than acetone greater than acetonitrile greater than methanol greater than ethanol greater than isopropanol greater than n-propanol greater than isobutanol greater than n-butanol greater than EG greater than cyclohexane greater than water. They were mathematically correlated by the NRTL model, h equation, Wilson model and Apelblat equation. The obtained values of the maximum root-mean-square deviation and relative average deviation were, respectively, 51.62x10-4 and 4.19x10-2. By the relationship examination of the Kamlet and Taft linear solvation energy of solvent effect, the type and degree of the solvent-solvent and solute-solvent interactions were identified. In addition, the mixing properties, reduced excess enthalpy and activity coefficient under infinitesimal concentrations were resulted in terms of the Wilson model.