Densities and viscosities of the quinoline + 2, 2, 2-trifluoroethanol system, a possible new working fluid for absorption heat pump, were measured in the temperature range of (298.15 to 323.15)K and in the concentration range of (0 to 100) quinoline mass%. The measurements were carried out by using pycnometers and Ubbelohde-type capillary viscometers. Each data set was correlated with the appropriate regression equation as a function of concentration and temperature.