In
this work, surface tensions, densities, viscosities, and refractive
indices of biodiesel +1-hexanol, 4-methyl-2-pentanol, and 2-ethyl-1-butanol
have been measured from 288.15 to 338.15 K at 0.1 MPa throughout the
whole composition range. Du Noüy ring tensiometer, vibrating
tube densimeter, glass capillary viscosimeter, and Abbemat refractometer
are used to measure the surface tensions, densities, viscosities,
and refractive indices, respectively. Our experimental results for
the pure alcohols agree with literature values within average absolute
percentage deviations of 1.171, 0.024, 0.737, and 0.061 % for the
surface tension, density, viscosity, and refractive index, respectively.
Experimental densities and viscosities of some of our biodiesel mixtures
satisfy the limits set by the diesel fuel standard (EN 590), becoming
potential substitutes of conventional diesel. Kinematic viscosities
show a minimum value at alcohol mass fractions between 0.4 and 0.9.
Thermodynamic properties and derived properties have been correlated
using different equations reported in the literature.