Cite as:
Daugé P, Canet X, Baylaucq A, Boned C, 2001, "Measurements of the density and viscosity of the tridecane + 2,2,4,4,6,8,8-heptamethylnonane mixtures in the temperature range 293.15 - 353.15 K at pressures up to 100 MPa" High Temperatures - High Pressures 33(2) 213 – 230

Measurements of the density and viscosity of the tridecane + 2,2,4,4,6,8,8-heptamethylnonane mixtures in the temperature range 293.15 - 353.15 K at pressures up to 100 MPa

Pierre Daugé, Xavier Canet, Antoine Baylaucq, Christian Boned

Received 01 March 2000

Abstract. The dynamic viscosity, h, of the binary mixture 2,2,4,4,6,8,8-heptamethylnonane + tridecane was measured in the temperature range 293.15 - 353.15 K (in progressive steps of 10 K) at pressures 0.1, 20, 40, 60, 80, and 100 MPa. The system is described by nine molar fractions (0 to 1 in progressive steps of 0.125). The density, r, has been measured at pressures from 0.1 to 65 MPa in progressive steps of 5 MPa. The whole set of experimental data represents 378 points for the dynamic viscosity (84 for the pure compounds and 294 for the mixtures) and 882 for density. The measurements of h allow the determination of the excess viscosity, h^E, and the excess activation energy of flow, DG^E, versus pressure, temperature, and composition. Some models have been used in order to represent the viscosity of this binary mixture.

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