VISCOMETRIC STUDY OF (AN ALIPHATIC METHYL-ESTER PLUS HEPTANE OR NONANE) AT THE TEMPERATURE 298.15-K

Kinematic viscosities of binary mixtures composed of an aliphatic meth yl ester (acetate, butanoate, hexanoate, octanoate, or decanoate) and an n-alkane (heptane or nonane) have been determined at 298.15 K and a tmospheric pressure for the whole range of compositions. With density data it has been possible to determine other properties of the mixture s, such as the dynamic viscosity and the viscosity deviation. The expe rimental results have been used to test several empirical and semiempi rical equations adopted previously to correlate viscosity-composition data. Additionaly, experimental results are compared with those obtain ed by applying the group-contribution models UNIVAC and UNIFAC-VISCO.