The densities, ρ, and speeds of sound, u, have been measured as a function of composition for binary liquid mixtures of dipropylene glycol monopropyl ether (DPGMPE) with n-butylamine (BA), dibutylamine (DBA), and tributylamine (TBA) at (288.15, 293.15, 298.15, 303.15, and 308.15) K and atmospheric pressure using an Anton Paar DSA-5000 instrument. The ρ and u values were used to calculate excess molar volumes, VE, deviations from the ideal behavior of the thermal expansion coefficient, αE, and the isentropic compressibilities, ΔκS. Moreover, the apparent molar volume \({\bar{{V}}_{\phi ,i}^0 }\), and apparent molar compressibility \({\bar{{K}}_{\phi ,i}^0 }\), of the components have been calculated at infinite dilution. The Jouyban–Acree model is used to correlate the experimental values of density and ultrasonic speed at different temperatures.