Experimental data of densities and viscosities of propane-1,2,3-triol + ethane-1,2-diol binary mixtures were measured over the entire mole fraction range from (298.15 to 338.15) K at atmospheric pressure. Excess molar volumes as a function of mole fraction average have been obtained and fitted to the Redlich-Kister equation. Estimated coefficients of the Redlich-Kister equation and standard error calculated from the Redlich-Kister equation to the experimental data were also presented.