Diflufenican Dissolved in Different Aqueous Cosolvency Mixtures: Equilibrium Solubility Measurement and Thermodynamic Modeling

Abstract

Diflufenican equilibrium solubilities when dissolved in a series of cosolvent mixtures of (ethanol + water), (ethylene glycol, EG + water), (propylene glycol, PG + water), and (N,N-dimethyl formamide, DMF + water) were determined and analyzed by the isothermal saturation method from 278.15 to 323.15 K at an ambient pressure of 101.2 kPa. Four pure organic solvents including ethanol, EG, PG, and DMF showed great dissolving capacity in various aqueous cosolvency systems and their solubility (in mole fraction) order was as follows: