D ENSITIES (ρ), refractive indices (n D) and surface tension (σ) of the binary mixtures of benzyl alcohol (BA) + ethylene glycol (EG), BA+ diethylene glycol (DEG) and BA + triethylene glycol(TEG)] were determined over the entire range of mole fractions at temperature 20 0 c and atmospheric pressure. Excess molar volume (V E), excess refractive indices (n D E), molar refraction deviation (ΔR), excess surface tension (Δσ) also the polarizability (α) were calculated. The excess refractive indices n D E of BA with DEG and TEG are negative but with EG are positive. Excess molar volume (V E) and molar refraction deviations (ΔR) are negative for all. Surface tension for both binary mixtures of BA+EG and BA+DEG have negative deviation, but in case of binary mixture of BA+TEG the deviation are negative till x 1 ≈ 0.6 after that it is positive. The experimental and calculated quantities are used to study the effect of mixing between mixed components. All the results show that we can use 0.3 mole fraction of TEG as anti-solvent with BA