Densities and Viscosities for the Ternary System of Cyclopropanemethanol (1) + n-Dodecane (2) + Butylcyclohexane (3) and Corresponding Binaries at T = 293.15–343.15 K

Abstract

Densities (ρ) and viscosities (η) for the ternary system cyclopropanemethanol (1) + n-dodecane (2) + butylcyclohexane (3) and three corresponding binary systems have been measured at 11 temperatures from 293.15 to 343.15 K under atmospheric pressure. The excess molar volumes (V m E) and viscosity deviations (Δη) of binary systems have been calculated and fitted to the Redlich–Kister equation, while data of the ternary system have been fitted to the Clibuka, Singh, Nagata–Tamura, and Redlich–Kister equations, respectively. The value of the V m E of the investigated systems is positive, while the value of Δη is negative over the entire concentration range; the results are illustrated through molecular interactions and structural effects.

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

“…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. This phenomenon can also be found in systems of isopropylcyclohexane + n -tridecane and n -dodecane + butylcyclohexane. , …”

“…This phenomenon can also be found in systems of isopropylcyclohexane + n-tridecane and n-dodecane + butylcyclohexane. 29,30 For the binary systems of pinane (1) + methyl laurate (2) and n-dodecane (1) + methyl laurate (2) (Figure 2b,c), the maxmium values of V m E all appears at around x 1 = 0.6. Compared with the system of pinane (1) + n-dodecane (2), the maxmium values of V m E for systems that contained methyl laurate are larger.…”

Densities and Viscosities for the Ternary System of 1,2,3,4-Tetrahydronaphthalene + Isopropylcyclohexane + Cyclopropanemethanol and Corresponding Binaries at T = (293.15 to 343.15) K

“…20,21 As for the binary system containing alcohol, the intermolecular interactions play a more significant role for hydrogen bonding. 13,22,23 The hydrogen bond between the cyclopropylmethanol molecules will be broken when the alkanes 1,2,3,4-tetrahydronaphthalene or isopropylcyclohexane are added, so the positive excess molar volume of the binary mixtures can be observed. Obviously, the excess molar volume values of these two systems increase with the temperature increasing, which occurs because hydrogen bonds are more easily broken at high temperatures.…”

“…11,12 Cyclopropanemethanol, alcohol with a ternary ring, can further promote the combustion of fuel because of the high tension of the ternary ring. 13 The addition of this compound can cause some changes in the physical properties of the fuel, which can be studied more visually by measuring density and viscosity. 14,15 Regarding of all these mentioned, the ternary system 1,2,3,4tetrahydronaphthalene + isopropylcyclohexane + cyclopropanemethanol deserves in-depth investigation for not only fundamental study but also application prospects.…”

“…Nevertheless, with the increase of fuel density, there will be some deficiencies that can affect the overall performance of fuel, such as the problems of ignition delay and inefficient combustion. , As a result, fuel additives are used to avoid these problems. Alcohol is an ideal choice which can enhance the octane number of fuel, reduce atmospheric pollution, and improve other combustion performance of fuel. , Cyclopropane­methanol, alcohol with a ternary ring, can further promote the combustion of fuel because of the high tension of the ternary ring . The addition of this compound can cause some changes in the physical properties of the fuel, which can be studied more visually by measuring density and viscosity. , …”