Studies on intermolecular interaction on binary mixtures of methyl orange–water system: Excess molar functions of ultrasonic parameters at different concentrations and at different temperatures

Density (ρ), viscosity (η) and ultrasonic velocity (u) of binary mixtures of methyl orange and water were measured at different concentrations and at different temperatures; several useful parameters such as excess volume, excess velocity, and excess adiabatic compressibility have been calculated. These parameters are used to explain the nature of intermolecular interactions taking place in the binary mixture. The above study is helpful in understanding the dye/solvent interaction at different concentration and temperatures.

► Density (ρ), viscosity (η) and ultrasonic velocity (u) of binary mixtures of methyl orange and water at different concentrations and at different temperatures measured. ► Excess volume, excess velocity, and excess adiabatic compressibility calculated. ► Parameters are used to explain the nature of intermolecular interactions in binary mixture. ► The dye/solvent interaction at different concentration and temperatures are measured.