Density, Viscosity, Speed of Sound, Bulk Modulus, Surface Tension, and Flash Point of Binary Mixtures of Butylbenzene + Linear Alkanes (n-Decane, n-Dodecane, n-Tetradecane, n-Hexadecane, or n-Heptadecane) at 0.1 MPa

Abstract

This work reports physical property measurements of binary mixtures of butylbenzene with n-decane, n-dodecane, n-tetradecane, n-hexadecane, or n-heptadecane. Densities and viscosities were measured at temperatures from (293.15 to 373.15) K, and speeds of sound were measured at temperatures from (293.15 to 333.15) K, except for those of n-heptadecane, which were measured starting at 303.15 K. Densities increased with increasing mole fraction of butylbenzene. Excess molar volumes were positive and increased with increasing alkane chain length, except for those of heptadecane which were similar to those of n-hexadecane. Analysis of excess molar volumes using the Prigogine–Flory–Patterson model showed that the interaction term contributed more to excess molar volume than the free volume or P* term. As the mole fraction of butylbenzene increased, speeds of sound increased for n-decane and n-dodecane mixtures but decreased for other alkane mixtures to values below those of both pure components before increasing again. Viscosities decreased as the mole fraction of butylbenzene increased except for those of some n-decane mixtures, which were below those of butylbenzene and n-decane. Viscosity mole fraction data were fit using the three-body McAllister model. Bulk moduli and surface tension increased with increasing mole fraction of butylbenzene, and flash points fell between those of the individual components. These mixtures can be used as surrogates for petroleum-based fuels.

Calculation of the Surface Tension of Ordinary Organic and Ionic Liquids by Means of a Generally Applicable Computer Algorithm Based on the Group-Additivity Method

“…This collection has been complemented—and its data compared—by the more recent collective papers [ 11 , 12 , 17 , 18 ]. Additionally, surface-tension data have been provided for various alkanes [ 19 , 20 , 21 , 22 , 23 , 24 ], alkylbenzenes [ 25 ], haloalkanes [ 26 , 27 ], halogenated esters and ethers [ 28 ], sulfoxides [ 29 ], and siloxanes [ 30 , 31 ]. Of particular interest are surface-tension data for ionic liquids.…”

Density, Viscosity, Speed of Sound, Bulk Modulus, Surface Tension, and Flash Point of Selected Ternary Mixtures of n-Butylcyclohexane + a Linear Alkane (n-Hexadcane or n-Dodecane) + an Aromatic Compound (Toluene, n-Butylbenzene, or n-Hexylbenzene)

“…Previous studies have investigated the physical properties of mixtures containing these compounds. The density and viscosity have been measured for two-component mixtures of butylcylclohexane with n -alkanes ranging from n -heptane to n -hexadecane, − two-component mixtures of toluene with n -alkanes ranging from n -octane to n -hexadecane, − and two-component mixtures of butylbenzene with n -alkanes ranging from n -decane to n -heptadecane, and two-component mixtures of hexylbenzene with hexadecane . The density and speed of sound have been measured for two-component mixtures of toluene with cyclohexane, methylcyclohexane, and butylcyclohexane. , These studies have reported excess molar volumes that deviate from zero in either a positive or negative direction depending on the study.…”

Calculation of the Surface Tension of Ordinary Organic and Ionic Liquids by Means of a Generally Applicable Computer Algorithm Based on the Group—Additivity Method

“…This collection has been complementedand its data comparedby the more recent collective papers [11,12,17,18]. Additionally, surface-tension data have been provided for various alkanes [19][20][21][22][23][24], alkylbenzenes [25], haloalkanes [26,27], halogenated esters and ethers [28], sulfoxides [29] and siloxanes [30,31]. Of particular interest are surface-tension data for ionic liquids.…”