Densities and Viscosities for Binary Liquid Mixtures of Biodiesel + 1-Butanol, + Isobutyl Alcohol, or + 2-Butanol from 293.15 to 333.15 K at 0.1 MPa

Abstract

This paper presents experimental densities and viscosities of binary mixtures of biodiesel with 1-butanol, isobutyl alcohol, and 2-butanol from 293.15 to 333.15 K at 0.1 MPa. Densities are from a vibrating tube densimeter while viscosities are from a capillary glass viscometer. Experimental data of density and viscosity of pure alcohols agree with data reported in the literature with an average absolute percentage deviation of 0.06% and 1.3%, respectively. Experimental kinematic viscosities of the mixtures show a minimum value in the concentration range. The Grunberg–Nissan equation successfully correlates kinematic viscosities with an average absolute percentage deviation of 0.98%.