The result of a new experimental study of thermo-acoustic properties for the binary systems of acrylonitryl with methanol, 1,4-dioxane and cyclohexane have been presented. The density (ρ), viscosity (η) and velocity (U) have been measured over the whole range of composition at the temperature 303K. These properties have been used to determine the excess parameters such as excess adiabatic compressibility(βa E), excess free length(Lf E), excess free volume(Vf E) , excess internal pressure(πi E), excess relaxation time(τE) ,excess acoustic impedance(Za E) and excess Gibb’s(ΔGE). The non-ideal behavior of these binary systems has been revealed through the sign and magnitude of the excess parameters. These parameters have been studied on the basis of dipole-dipole interactions and hydrogen bonding as well as the nature and the strength of interactions in the binary mixtures are discussed.
