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Density, Viscosity, Refractive Index, and Freezing Point for Binary Mixtures of 1,1′-Bicyclohexyl with Alkylcyclohexane
journal contribution
posted on 2014-08-14, 00:00 authored by Xiaodong Jiang, Guijin He, Xi Wu, Yongsheng Guo, Wenjun Fang, Li XuExperimental data of density, viscosity,
refractive index, and
freezing point have been measured for the binary mixtures of 1,1′-bicyclohexyl
with methylcyclohexane, ethylcyclohexane, and butylcyclohexane at
different temperatures from T = (293.15 to 318.15)
K and the pressure p = 0.1 MPa. The values of density,
viscosity, and refractive index at a given temperature, along with
the freezing point, increase continuously versus the increasing mole
fraction of 1,1′-bicyclohexyl in the binary mixtures. The excess
molar volumes (VmE), the viscosity
deviations (Δη), and the refractive index deviations (ΔnD) are then calculated and are fitted to the
Redlich–Kister equation. All of the VmE and Δη values are observed to be
negative for these three binary systems over the whole composition
range, which are discussed from the molecular interactions and structural
effects. The fundamental data are provided for the preparation of
advanced hydrocarbon fuels.