Thermodynamics Research Center / ThermoML | Journal of Chemical and Engineering Data

ABSTRACT

In this work, the physical properties of binary mixtures of bicyclohexyl and 1,2,3,4-tetrahydronaphthalene (tetralin) or trans-decahydronaphthalene (trans-decalin) were measured. Densities and viscosities were measured at temperatures from 293.15 to 373.15 K, and speeds of sound were measured at temperatures from 293.15 to 343.15 K. At 303.15 K, pure component values of density (960.9, 878.93, 862.29 kg*m 3), viscosity (1.85, 3.18, 1.79 mPa*s), and speed of sound (1450.2, 1422.7, 1357.5 m*s 1) are consistent with literature values for tetralin, bicyclohexyl, and trans-decalin, respectively. Density mole fraction data were fit to second- or third-order polynomials. Viscosity mole fraction data were fit using the three-body McAllister model. The bulk modulus ranged from 1206 to 2149 MPa over 293.15 to 343.15 K. For tetralin mixtures, increasing tetralin increased density, speed of sound, bulk modulus, and surface tension and decreased viscosity and flash point. For trans-decalin mixtures, increasing trans-decalin decreased all properties measured. Increasing temperature decreased all properties values. At room temperature, surface tensions ranged from 30.5 to 35.6 mN*m 1. Flash points ranged from 328.7 to 361.2 K. These data are useful for comparing the properties of mixtures of components of coal and wood-based liquid fuels with those of petroleum-based fuels.