Density and Viscosity of Ternary Mixture of Cyclopentanol + <i>exo</i>-Tetrahydrodicyclopentadiene + 1,3-Dimethyladamantane

Oxygenated additives have been proved to improve the property of an aviation fuel, such as reducing pernicious emissions and adjusting physical properties, and an appropriate alcohol is usually a typical candidate. To understand the properties of high-energy-density hydrocarbon fuels with alcohol, densities (ρ) and viscosities (η) of ternary system, cyclopentanol + exo-tetrahydrodicyclopentadiene (JP-10) + 1,3-dimethyladamantane (1,3-DMA), and their corresponding binary systems, have been determined over the whole composition range at different temperatures, T = (293.15–333.15) K, and atmospheric pressure, p = 0.1 MPa. The excess molar volumes (VmE) and the viscosity deviations (Δη) of the binary systems mixtures were calculated and fitted to the Redlich–Kister equation, while those of the ternary systems were calculated and fitted to four different semiempirical equations. The results show that the addition of cyclopentanol can lead to a little higher density and a lower viscosity, which are beneficial to the design and performance of hydrocarbon fuels