This study reports the experimental measurements of speeds of sound from 293.15 to 313.15 K and pressures up to 100 MPa in 1,2-dichloroethane, and up to 45 MPa in 1,2-dibromoethane, approaching solidification of this compound. In addition, new atmospheric pressure data on densities of 1,2-dichloroethane from 278.15 to 348.15 K are presented. These experimental data have been implemented for calculating densities, isobaric heat capacities and coefficients of thermal expansion, isentropic and isothermal compressibilities, and internal pressures as functions of pressure and temperature by using an acoustic method of Davis–Gordon–Sun. Development of a new Design Institute for Physical Properties (DIPPR)-based version of the fluctuation theory-based Tait-like equation of state (FT-EoS) is presented. This model could become a simple and reliable tool implementing the DIPPR’s saturated state expressions for predicting the high-pressure densities and speeds of sound. It has also been demonstrated that both compou...