The densities

refractive indices

and viscosities of ethyl acetate + 1

2-propanediol binary mixture were measured at temperatures in the range of 298.15—323.15 K and atmospheric pressure using pycnometer

ABBE refractometer and Ubbelohde viscometer respectively.The density and viscosity data are fitted as a function of composition and temperature.Excess molar volumes(VE)

refractive index deviations(ΔnD)

viscosity deviations(Δη)and excess Gibbs energy of activation of viscous flow(ΔG*E)are calculated from the experimental data.The results show that the excess molar volumes are negative at 298.15 K and 303.15 K

but they turn to be positive in the rich ester region with rising of temperature.The refractive index deviations are negative except in the rich alcohol region.Both Δη and ΔG*E are negative over the whole mole fraction range in the temperature range studied

and the deviations is greater as temperature decreases.