Densities and Viscosities for Binary Liquid Mixtures of Butan-1-ol + Propane-1,2-diol, + Butane-1,2-diol and 2-Methylpropan-1-ol + Propane-1,2-diol, + Butane-1,2-diol from 298.15 to 333.15 K at 0.1 MPa

Abstract

This paper presents densities and viscosities of binary mixtures of butan-1-ol (or 2-methylpropan-1-ol) with propane-1,2-diol, and butane-1,2-diol from 298.15 to 333.15 K at 0.1 MPa over the entire concentration range. A vibrating tube densimeter provides the densities while a glass capillary viscometer provides the efflux time which is related with the kinematic viscosity. Experimental densities and viscosities of the pure components agree with data reported in the literature within an average absolute percentage deviation of 0.03% and 1.16%, respectively. The excess molar volumes and viscosity deviation calculated from experimental data present negative deviations from ideality in the entire temperature range. The Redlich–Kister equation is used to represent the composition behavior of excess molar volumes and the viscosity deviations. The Nava-Rios equation correlates our kinematic viscosity data within an overall average absolute percentage deviation of 1.085% while the McAllister equation correlates the kinematic viscosity within 1.541%.