The speed of sound u, density p, and specific heat capacity at constant pressure C-P for liquid 1-chlorohexane, 1-iodohexane, 1-iodoheptane, and 1-chlorononane were measured as a function of temperature along the saturation line between (293.15 and 373.15) K. The experimental results were used to calculate various thermophysical properties such as the isobaric thermal expansion coefficient up, the isentropic compressibility k(S), the isothermal compressibility k(T), the specific heat capacity at constant volume C-V, the ratio of C-P to C-V, the temperature coefficient of pressure at constant volume (partial derivativeP/partial derivativeT)(V), and the internal pressure P-i.