The solubilities of 1-(2-bromo-phenyl)-pyrrole-2,5-dione
in 14
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 to 323.15 K under 101.2
kPa. The values of the mole fraction solubility of 1-(2-bromo-phenyl)-pyrrole-2,5-dione
in above pure solvents increased as the temperature increased and
presented the following order in different pure solvents: DMF >
NMP
> DMSO > acetone > acetonitrile > methanol > ethanol
> isopropanol
> n-propanol > isobutanol > n-butanol
> EG > cyclohexane > water. They were mathematically correlated
by
the NRTL model, λh equation, Wilson model,
and Apelblat equation. The obtained values of the maximum root-mean-square
deviation and relative average deviation were, respectively, 51.62
× 10–4 and 4.19 × 10–2. By the relationship examination of the Kamlet and Taft linear solvation
energy of the 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 obtained in terms of the Wilson
model.
