Densities and Viscosities of 1,1,1-Trichloroethane + Paraffins and + Cycloparaffins at 298.15 K

Lorenzi, Lorenzo De; Fermeglia, Maurizio; Torriano, Giovanni

doi:10.1021/je00015a018

Cited by 41 publications

(28 citation statements)

References 5 publications

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“…Cyclo-paraffins with cis configuration typically possess a higher density than their trans configurations (symmetry structure) because of the twisted structure of cis configuration, e.g., cis-decalin (0.897 g/cm 3 ) versus trans-decalin (0.870 g/cm 3 ) [13]. For alkyl-substituted cyclo-paraffins, such as methylcyclohexane (0.765 g/cm 3 ), butylcyclohexane (0.796 g/cm 3 ) [14], and l,2dimethylcyclohexane (0.796 g/cm 3 ) [15], the increased chain length of the alkyl substituent and alkyl substituent number can slightly increase the density. Moreover, the position of alkyl substituents affects the fuel density.…”

Section: Relationship Between Density and Fuel Compositionmentioning

confidence: 99%

Review on the Relationship Between Liquid Aerospace Fuel Composition and Their Physicochemical Properties

Wang

Jia

Pan

et al. 2020

Trans. Tianjin Univ.

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The development of advanced air transportation has raised new demands for high-performance liquid hydrocarbon fuels. However, the measurement of fuel properties is time-consuming, cost-intensive, and limited to the operating conditions. The physicochemical properties of aerospace fuels are directly influenced by chemical composition. Thus, a thorough investigation should be conducted on the inherent relationship between fuel properties and composition for the design and synthesis of high-grade fuels and the prediction of fuel properties in the future. This work summarized the effects of fuel composition and hydrocarbon molecular structure on the fuel physicochemical properties, including density, net heat of combustion (NHOC), low-temperature fluidity (viscosity and freezing point), flash point, and thermal-oxidative stability. Several correlations and predictions of fuel properties from chemical composition were reviewed. Additionally, we correlated the fuel properties with hydrogen/carbon molar ratios (nH/C) and molecular weight (M). The results from the least-square method implicate that the coupling of H/C molar ratio and M is suitable for the estimation of density, NHOC, viscosity and effectiveness for the design, manufacture, and evaluation of aviation hydrocarbon fuels.

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Section: Relationship Between Density and Fuel Compositionmentioning

confidence: 99%

Review on the Relationship Between Liquid Aerospace Fuel Composition and Their Physicochemical Properties

Wang

Jia

Pan

et al. 2020

Trans. Tianjin Univ.

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“…Lennard-Jones parameters were obtained from the method of Chung et al (Chung et al, 1988). Extremely limited kinematic viscosity data from several sources (DeLorenzi, Fermeglia, & Torriano, 1994;Geist & Cannon, 1946;Knothe & Steidley, 2005;Koelbel, Siemes, & Luther, 1949) were located and converted to dynamic viscosity with the equation of state, and then used to obtain the coefficients in Table 2. A deviation plot as a function of temperature is shown in Figure 73.…”

Section: Propylcyclohexanementioning

confidence: 99%

Models for viscosity, thermal conductivity, and surface tension of selected pure fluids as implemented in REFPROP v10.0

Huber¹

2018

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We describe models for the viscosity, thermal conductivity, and surface tension for selected fluids implemented in version 10.0 of the NIST computer program, NIST Standard Reference Database 23, also known as NIST Reference Fluid Thermodynamic and Transport Properties Database (REFPROP). These fluids do not presently have published reference fluid quality models in the open literature, so we provide preliminary models based on available data as an interim measure to allow calculations of these properties. Comparisons with available experimental data are given.

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“…Excess speeds of sound, calculated in a manner similar to the one in this current work, for methylcyclohexane and ethylcyclohexane in either dodecane or hexadecane were not statistically different from zero. 51 For viscosity, Lorenzi et al 52 reported small positive viscosity deviations (<0.04 mm 2 •s −1 ) for 1,1,1,-trichlomethane mixed with butylcylohexane and small negative viscosity deviations (> −0.045 mm 2 •s −1 ) for 1,1,1,-trichlomethane mixed with cyclohexane, methylcyclohexane, and ethylcyclohexane. In our laboratory, we determined that the Gibbs energies of activation for viscous flow for binary mixtures of methyl-and ethylcyclohexane in dodecane and hexadecane were smaller than the error in the values themselves.…”

Section: Introductionmentioning

confidence: 99%

“…48,49 Table 1 also shows that the excess molar volume, speed of sound, and viscosity have been determined for mostly short-chain alkyl-cyclohexanes. 48,51,52 From their speed of sound measurements, Oswal and Maisuria 48 calculated positive excess isentropic compressibilities for mixtures of cyclohexane with octane, but negative excess isentropic compressibilities for mixtures of cyclohexane with hexane and heptane as well as mixtures of methylcyclohexane in hexane. Excess speeds of sound, calculated in a manner similar to the one in this current work, for methylcyclohexane and ethylcyclohexane in either dodecane or hexadecane were not statistically different from zero.…”

Section: Introductionmentioning

confidence: 99%

Densities, Speeds of Sound, and Viscosities of Binary Mixtures of ann-Alkylcyclohexane (n-Propyl-,n-Pentyl-,n-Hexyl-,n-Heptyl,n-Octyl-,n-Nonyl-,n-Decyl-, andn-Dodecyl-) withn-Hexadecane

et al. 2018

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This work reports densities, speeds of sound, and viscosities of binary mixtures of n-alkylcyclohexanes (propyl- to dodecylcyclohexane) in n-hexadecane as a function of temperature. Isentropic bulk moduli for these mixtures were calculated from these speed of sound and density data. Mixture densities increased with increasing alkylcyclohexane concentration. As the alkyl-chain length on the alkylcyclohexane increased, the excess molar volume decreased, with n-propylcyclohexane and n-dodecylcyclohexane mixtures having positive and negative excess molar volumes, respectively. Molecular dynamics simulations accurately predict densities and isentropic bulk moduli of n-propylcyclohexane and n-dodecylcyclohexane mixtures, and suggest that the differences in excess molar volumes for different alkyl-chain lengths are related to changes in molecular packing. The speed of sound as a function of mole fraction was modeled using a second-order polynomial, and viscosities were modeled using the McAllister three-body equation. Excess speeds of sound and excess molar Gibbs energies of activation for viscous flow at 293.15 K were not statistically different from zero, which suggest ideal behavior. Many of these mixtures have densities similar to those of petroleum-based diesel and jet fuel and viscosities comparable to diesel fuel. The isentropic bulk modulus of jet fuel is best matched by mixtures of n-propylcyclohexane, while that of diesel fuel is matched by mixtures of n-decylcyclohexane or n-dodecylcyclohexane.

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Densities and Viscosities of 1,1,1-Trichloroethane + Paraffins and + Cycloparaffins at 298.15 K

Cited by 41 publications

References 5 publications

Review on the Relationship Between Liquid Aerospace Fuel Composition and Their Physicochemical Properties

Review on the Relationship Between Liquid Aerospace Fuel Composition and Their Physicochemical Properties

Models for viscosity, thermal conductivity, and surface tension of selected pure fluids as implemented in REFPROP v10.0

Densities, Speeds of Sound, and Viscosities of Binary Mixtures of ann-Alkylcyclohexane (n-Propyl-,n-Pentyl-,n-Hexyl-,n-Heptyl,n-Octyl-,n-Nonyl-,n-Decyl-, andn-Dodecyl-) withn-Hexadecane

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