Viscometric study of (an aliphatic methyl ester + heptane or nonane) at the temperature 298.15 K

Abstract

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