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

Abstract

Densities (ρ) and viscosities (η) for the ternary system of decalin (1) + methylcyclohexane (2) + cyclopentanol (3) and three corresponding binary systems have been measured over the whole composition range at 11 temperature points from 293.15 K to 343.15 K under atmospheric pressure (0.1 MPa). The excess molar volumes (V m E ) and viscosity deviations (Δη) of binary systems have been calculated and further fitted with the Redlich−Kister equation, while corresponding physical data of the ternary system have been correlated via the Clibuka, Singh, Nagata-Tamura, and Redlich−Kister equations. The V m E values are negative for the binary system of decalin (1) + methylcyclohexane (2) with a minimum when the moles of the two components are similar. For the system of decalin (1) + cyclopentanol (2), the V m E values are always positive with a maximun at about x 1 = 0.6. At the same time, a sigmoid curve can be observed for the system of methylcyclohexane (1) + cyclopentanol (2). The minimum and maximum appear around x 1 = 0.2 and x 1 = 0.9, respectively. The Δη values of the three binary systems are all negative and the absolute values decrease with increase in temperature. For the ternary system, the V m E values are partially negative and the Δη values are negative over the entire concentration range. The nonideal behaviors of the mixtures are discussed in the perspective of intermolecular interaction and structural effect.

Density and Viscosity Measurements on the Ternary System of exo-Tetrahydrodicyclopentadiene (1) + n-Decane (2) + Iso-Butanol (3) and Corresponding Binary Systems

“…Accepted theories suggested that the reasons for the variations of V m E values can be divided into three aspects: (1) chemical intermolecular forces (i.e., hydrogen bond); (2) physical intermolecular forces (i.e., van der Waals forces); and (3) structural effects (i.e., geometrical interstitial accommodation). − …”

Densities and Viscosities of the Ternary System exo-Tetrahydrodicyclopentadiene (1) + n-Decane (2) + 1,2,3,4-Tetrahydronaphthalene (3) and the Corresponding Binary Systems at T = (293.15–333.15) K

“…There are three reasons for the variations of V m E values: (1) physical intermolecular forces (i.e., van der Waals forces), (2) chemical intermolecular forces (i.e., hydrogen bonds), and (3) structural effects (i.e., geometrical interstitial accommodation). − …”

Densities and Viscosities for the Ternary Mixture of n-Undecane (1) + Methyl Decanoate (2) + n-Butanol (3) and Corresponding Binaries from T = 293.15 to 333.15 K and at Atmospheric Pressure

“…As economic and environmental problems have become increasingly serious due to excessive consumption of petroleum fuels, considerable attention has been paid to exploiting different sustainable energy sources to replace traditional petroleum fuels. , Among those alternatives, biofuels have attracted extensive attention in light of their low pollution, small production costs, and renewability. , Biofuels, composed of long-chain methyl or ethyl monoesters, are produced from the transesterification of any biomass with a short-chain alcohol such as methanol or ethanol . In addition to being used as a solitary fuel, biofuels can also act as oxygenated additives to improve the combustion performance of aviation fuels. , Recently, many research studies about biofuels as fossil fuel additives have been carried out. − Arkoudeas observed that the addition of sunflower and olive oil to the JP-8 aviation fuel could significantly reduce the emission of particulate matters. Chuck investigated the compatibility of nine potential biofuels with Jet A-1 aviation kerosene, and the result showed the lubricity properties of mixtures were tremendously improved compared with the single fuel.…”