Dynamic viscosity of the binary system 1-propanol + toluene as a function of temperature and pressure

Antoine Baylaucq (1, 2) , G. Watson (1) , C. Zeberg-Mikkelsen , Jean-Patrick Bazile (1) , Christian Boned (1)

1 TEFC - Thermodynamique et Energétique des fluides complexes
2 CSTJF - Centre scientifique et Technique Jean Feger

The viscosity of the binary system 1-propanol + toluene has been measured with a falling-body viscometer for seven compositions as well as for the pure alcohol in the temperature range (293.15 to 353.15) K and up to 100 MPa with an experimental uncertainty of ± 2 %. At 0.1 MPa, the viscosity has been measured with a classical capillary viscometer (Ubbelohde) with an uncertainty of ± 1 %. A total of 216 experimental data points are reported. The viscosity behavior of this binary system is interpreted as the results of changes in the free volume and the breaking or weakening of hydrogen bonds. These data have been used to study the performance of two compositional models and a free-volume model.

Mots clés: 1-propanol; Binary systems; Capillary viscometers; Compositional models; Dynamic viscosities; Experimental data; Experimental uncertainty; Falling-body viscometer; Temperature range; Viscosity behavior Engineering controlled terms: Hydrogen; Hydrogen bonds; Organic polymers; Ternary systems; Toluene; Viscometers; Viscosity measurement Engineering main heading: Viscosity

Domaines: Chimie-Physique [physics.chem-ph]

Antoine Baylaucq, G. Watson, C. Zeberg-Mikkelsen, Jean-Patrick Bazile, Christian Boned. Dynamic viscosity of the binary system 1-propanol + toluene as a function of temperature and pressure. Journal of Chemical and Engineering Data, 2009, 54 (9), pp.2715-2721. ⟨10.1021/je9002477⟩. ⟨hal-00683421⟩