This work reports new experimental data on the solubilities and liquid-liquid phase diagrams of the ternary system water + 2-propanol + fluorobenzene at temperatures of (288.15, 298.15, and 308.15) K and a pressure of 101.2 kPa. The experimental data were correlated quantitatively by means of the nonrandom two liquid (NRTL) and universal quasi chemical (UNIQUAC) thermodynamic models and were consistent to better than 0.3% in the phase composition. The effect of temperature on the miscibility of the ternary systems is generally small.