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

Abstract

exo-Tetrahydrodicyclopentadiene can serve as both the propellant and coolant in hypersonic vehicles. However, its applications are restricted by the poor properties of ignition and combustion to some extent. Fuel additives such as appropriate alcohols have the ability to overcome these deficits. Research on thermophysical properties of the mixtures composed of exo-tetrahydrodicyclopentadiene and fuel additives can provide important information for the research of fuel additives. In this work, densities and viscosities of the ternary system of exotetrahydrodicyclopentadiene (1) + n-decane (2) + iso-butanol (3) and three corresponding binary systems have been measured over the whole composition range in the temperature range from 293.15 to 333.15 K with an interval of 5 K and at pressure p = 0.1 MPa. The values of excess molar volumes (V m E ) and viscosity deviations (Δη) of three binary systems and the ternary system were calculated and then fitted to the Redlich−Kister equation and four semiempirical equations, respectively. The variations of V m E and Δη were explained from the viewpoints of intermolecular forces and structural effects. Furthermore, the Jouyban−Acree model was used to correlate the values of densities (ρ) and viscosities (η) of the studied mixtures with high accuracy.

Density and Viscosity of the Ternary System Pinane + n-Dodecane + Methyl Laurate and Corresponding Binary Systems at T = 293.15–333.15 K

“…Generally, the value of V m E is influenced by (1) the van der Waals force, which includes dispersion force, orientation force, and induction force, (2) special intermolecular forces, such as hydrogen bonds, and (3) the spatial factors caused by the shape and size of molecules. In this work, there were no special intermolecular forces in all tested systems; it is reasonable to explain the variation of V m E by the van der Waals force and the molecular structural effects. , …”

“…In this work, there were no special intermolecular forces in all tested systems; it is reasonable to explain the variation of V m E by the van der Waals force and the molecular structural effects. 27,28 For the nonpolar binary system of pinane (1) + n-dodecane (2) (Figure 2a), the maximum value of V m E appears at around x 1 = 0.5. Due to the dispersion force between nonpolar molecules, the overall V m E of the system is positive; as a consequence of dispersion force, it decreases with rising temperature.…”

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

“…More specifically, n-decane with a straight-chain structure may enter the interstitial space of exo-tetrahydrodicyclopentadiene or 1,2,3,4-tetrahydronaphthalene with a cyclic structure. 24 As a result, the molecular distance between n-decane and exo-tetrahydrodicyclopentadiene or 1,2,3,4-tetrahydronaphthalene becomes smaller, which accounts for the negative V m E value. 15 Moreover, the absolute value of V m E also increases with the increase of temperature because the increase of the thermal motion of molecules makes it easier for the straight molecules to approach the ring molecules.…”

Densities, Viscosities, and Excess/Deviation Properties of the Ternary System 2-(Methylamino)ethanol + Dimethyl Sulfoxide + Water and the Binary Subsystems

“…21−28 Han et al, 24 Singh et al, 25 and Ma et al 26 and co-workers investigated four semiempirical equations (i.e., Cibulka, Singh, Redlich−Kister, and Nagata−Tamura equations) to represent V E and Δη of several nonaqueous ternary systems. 27 Zhao et al 28 used a modified Jouyban−Acree model including the effects of temperature to represent the property data of the ternary systems.…”

“…In addition, the correlations and prediction of volumetric properties and viscosities of ternary mixtures using empirical models is an active area of research in development. There are several semiempirical equations that have been applied to correlate the experimental ternary results in the literature. − Han et al, Singh et al, and Ma et al correlated the excess molar volume ( V E ) and viscosity deviation (Δη) of different ternary systems with Redlich–Kister and Cibulka equations. Guo and co-workers investigated four semiempirical equations (i.e., Cibulka, Singh, Redlich–Kister, and Nagata–Tamura equations) to represent V E and Δη of several nonaqueous ternary systems .…”