Abstract
The specific heat, molar volume, and sound velocity have been measured to investigate the thermodynamics of structural changes in liquid CdSb, from which the volume expansion coefficient and isothermal compressibility have also been deduced. These thermodynamic functions show unusually large temperature dependence around the melting point. It is shown that the Ehrenfest's relations in an extended form are satisfied, which gives strong support to chemical clusters in the liquid CdSb which dissociates with raising temperature.