The density and viscosity of three binary mixtures composed of methyl tert-butyl ether (MTBE) with 2-propanol, 2-butanol, and 2-pentanol over the whole composition range at 293.15-323.15 K were measured. The excess molar volume E V m and deviation in viscosity η, were calculated and interpreted in terms of intermolecular interactions among the species in the mixtures. For all binary mixtures, negative values of E V m and η were fitted to the Redlich-Kister polynomial function. By increasing temperature, E V m and η were reduced and increased, respectively. The density of the binary systems was modeled in terms of the perturbed chain statistical associating fluid theory (PC-SAFT) and compared with the corresponding experimental data. Maximum of deviation between the experimental data and calculated values by this theory is 1.4% and belongs to the MTBE + 2-butanol system
