Densities and Viscosities for the Ternary System of exo-Tetrahydrodicyclopentadiene (1) + Methylcyclohexane (2) + Cyclopropanemethanol (3) and Its Binaries at T = 293.15 to 333.15 K

Abstract

Measurements on densities (ρ) and viscosities (η) at nine temperatures from 293.15 to 333.15 K and the pressure p = 0.1 MPa for the ternary system of exo-tetrahydrodicyclopentadiene (1) + methylcyclohexane (2) + cyclopropanemethanol (3) and the corresponding binary systems have been carried out over the whole composition range. The excess molar volumes (V m E ) and viscosity deviations (Δη) of the ternary system have been calculated and fitted to the Nagata−Tamura equation, while those of the binary systems have been calculated and fitted to the Redlich−Kister equation. The excess properties and deviation phenomena were discussed from the viewpoints of molecular interactions and structural effects. These fundamental results can be used to learn the nature of mixed hydrocarbon fuels.

Densities and Viscosities for the Ternary System of Decalin + Methylcyclohexane + Cyclopentanol and Corresponding Binaries at T = 293.15 to 343.15 K

“…For the ternary system, the values of excess molar volume ( ) and viscosity deviation (Δη) are fitted to the following empirical equation. where is excess molar volume or viscosity deviation for the ternary system of decalin (1) + methylcyclohexane (2) + cyclopentanol (3), and , and stand for the contribution of the binary systems. The value of can usually be determined with different models , , , , , , , .…”

“…The minimum and maximum appear around and , respectively. These different changes of excess molar volumes are probably caused by intermolecular interaction force, including physical forces (electrostatic force, induced force, and dispersion force) and hydrogen bonding, and molecular structure. − As the system of decalin (1) + methylcyclohexane (2) are composed of nonpolar molecules, there are hardly any chemical intermolecular forces, and the physical intermoleculars are also weak. Hence, the negative excess molar volumes are mainly ascribed to the structural effect among the unlike molecules.…”