Electrolytic conductance (Λ), density (ρ), viscosity (η), refractive index (n D ) and ultrasonic speed (u) of lithium halides LiX (where X=Cl, Br, I) have been studied in different mass fraction (w 1 =0.00–0.75) of acetonitrile (ACN)+1,3-dioxolane (1,3-DO) mixtures at 298.15K. The limiting molar conductivity (Λ 0), association constant (K A ), and distance of closest approach of ions (R) have been evaluated using Fuoss-conductance equation (1978). The deviation of conductometric curve (Λ vs √c) from linearity in 1,3-DO, analyzed by the Fuoss–Kraus theory. The limiting apparent molar volume ( ϕ V 0 ), experimental slope ( S V * ) derived from Masson equation, and viscosity B and A-coefficients derived from Jones–Dole equation supplemented with density and viscosity data, respectively, have been interpreted in terms of ion–solvent and ion–ion interactions. The limiting partial molar adiabatic compressibility ( ϕ K 0 ), have also been obtained from the value of ultrasonic speed (u) and discussed them to interpret the same.