Thermodynamics Research Center / ThermoML | Journal of Chemical and Engineering Data

Densities and Viscosities at 293.15 373.15 K, Speeds of Sound and Bulk Moduli at 293.15 333.15 K, Surface Tensions, and Flash Points of Binary Mixtures of n-Hexadecane and Alkylbenzenes at 0.1 MPa

Luning Prak, D. J.[Dianne J.], Luning Prak, P. J.[Peter J.], Cowart, J. S.[Jim S.], Trulove, P. C.[Paul C.]
J. Chem. Eng. Data 2017, 62, 5, 1673-1688
ABSTRACT
The viscosities and densities (293.15 to 373.15 K), speeds of sound (293.15 to 333.15 K), surface tensions (room temperature) and flash points were measured for binary mixtures of nhexadecane and alkylbenzenes (hexylbenzene, octylbenzene, dodecylbenzene), which are components of diesel fuel. Increasing temperature decreased densities, and excess molar volumes of mixtures were higher for hexylbenzene mixtures than for octylbenzene mixtures, and insignificantly different from zero for dodecylbenzene mixtures. The decrease in excess molar volume with increasing alkyl chain length is consistent with other binary mixtures of nhexadecane and alkylbenzenes. Increasing temperature decreased viscosities, and the McAllister three-body model successfully modeled viscosity with the compound in the mixture with the highest individual viscosity having the largest fitted interaction parameter. Mixture flashpoints, speed of sounds, bulk moduli, and surface tensions fell between the pure component values. For n-hexadecane/n-hexylbenzene mixtures, as the mole fraction of hexylbenzene increased, the speed of sound remained constant until a mole fraction of 0.5, then the speed of sound increased. Based on these data, binary mixtures of these compounds could be formulated to have property values that match those found in diesel fuel, except for surface tension, and thereby be potential fuel surrogates.
Compounds
# Formula Name
1 C16H34 hexadecane
2 C12H18 hexylbenzene
3 C14H22 octylbenzene
4 C18H30 dodecylbenzene
Datasets
The table above is generated from the ThermoML associated json file (link above). POMD and RXND refer to PureOrMixture and Reaction Datasets. The compound numbers are included in properties, variables, and phases, if specificied; the numbers refer to the table of compounds on the left.
Type Compound-# Property Variable Constraint Phase Method #Points
  • POMD
  • 1
  • Surface tension liquid-gas, N/m ; Liquid
  • Temperature, K; Liquid
  • Liquid
  • Gas
  • Pendant drop shape
  • 1
  • POMD
  • 1
  • Mass density, kg/m3 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Vibrating tube method
  • 10
  • POMD
  • 1
  • Viscosity, Pa*s ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Concentric cylinders viscometry
  • 9
  • POMD
  • 1
  • Speed of sound, m/s ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Frequency, MHz; Liquid
  • Liquid
  • Sing-around technique in a fixed-path interferometer
  • 5
  • POMD
  • 2
  • Surface tension liquid-gas, N/m ; Liquid
  • Temperature, K; Liquid
  • Liquid
  • Gas
  • Pendant drop shape
  • 1
  • POMD
  • 2
  • Mass density, kg/m3 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Vibrating tube method
  • 9
  • POMD
  • 2
  • Viscosity, Pa*s ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Concentric cylinders viscometry
  • 9
  • POMD
  • 2
  • Speed of sound, m/s ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Frequency, MHz; Liquid
  • Liquid
  • Sing-around technique in a fixed-path interferometer
  • 5
  • POMD
  • 3
  • Surface tension liquid-gas, N/m ; Liquid
  • Temperature, K; Liquid
  • Liquid
  • Gas
  • Pendant drop shape
  • 1
  • POMD
  • 3
  • Mass density, kg/m3 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Vibrating tube method
  • 9
  • POMD
  • 3
  • Viscosity, Pa*s ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Concentric cylinders viscometry
  • 9
  • POMD
  • 3
  • Speed of sound, m/s ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Frequency, MHz; Liquid
  • Liquid
  • Sing-around technique in a fixed-path interferometer
  • 5
  • POMD
  • 4
  • Surface tension liquid-gas, N/m ; Liquid
  • Temperature, K; Liquid
  • Liquid
  • Gas
  • Pendant drop shape
  • 1
  • POMD
  • 4
  • Mass density, kg/m3 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Vibrating tube method
  • 9
  • POMD
  • 4
  • Viscosity, Pa*s ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Concentric cylinders viscometry
  • 9
  • POMD
  • 4
  • Speed of sound, m/s ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Frequency, MHz; Liquid
  • Liquid
  • Sing-around technique in a fixed-path interferometer
  • 5
  • POMD
  • 1
  • 2
  • Mass density, kg/m3 ; Liquid
  • Temperature, K; Liquid
  • Mass fraction - 2; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Vibrating tube method
  • 99
  • POMD
  • 1
  • 2
  • Viscosity, Pa*s ; Liquid
  • Temperature, K; Liquid
  • Mass fraction - 2; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Concentric cylinders viscometry
  • 99
  • POMD
  • 1
  • 2
  • Speed of sound, m/s ; Liquid
  • Temperature, K; Liquid
  • Mole fraction - 2; Liquid
  • Pressure, kPa; Liquid
  • Frequency, MHz; Liquid
  • Liquid
  • Sing-around technique in a fixed-path interferometer
  • 55
  • POMD
  • 1
  • 2
  • Surface tension liquid-gas, N/m ; Liquid
  • Mole fraction - 2; Liquid
  • Temperature, K; Liquid
  • Liquid
  • Gas
  • Pendant drop shape
  • 9
  • POMD
  • 1
  • 3
  • Mass density, kg/m3 ; Liquid
  • Temperature, K; Liquid
  • Mass fraction - 3; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Vibrating tube method
  • 99
  • POMD
  • 1
  • 3
  • Viscosity, Pa*s ; Liquid
  • Temperature, K; Liquid
  • Mass fraction - 3; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Concentric cylinders viscometry
  • 99
  • POMD
  • 1
  • 3
  • Speed of sound, m/s ; Liquid
  • Temperature, K; Liquid
  • Mole fraction - 3; Liquid
  • Pressure, kPa; Liquid
  • Frequency, MHz; Liquid
  • Liquid
  • Sing-around technique in a fixed-path interferometer
  • 50
  • POMD
  • 1
  • 3
  • Surface tension liquid-gas, N/m ; Liquid
  • Mole fraction - 3; Liquid
  • Temperature, K; Liquid
  • Liquid
  • Gas
  • Pendant drop shape
  • 9
  • POMD
  • 4
  • 1
  • Mass density, kg/m3 ; Liquid
  • Temperature, K; Liquid
  • Mass fraction - 4; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Vibrating tube method
  • 99
  • POMD
  • 4
  • 1
  • Viscosity, Pa*s ; Liquid
  • Temperature, K; Liquid
  • Mass fraction - 4; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Concentric cylinders viscometry
  • 99
  • POMD
  • 4
  • 1
  • Speed of sound, m/s ; Liquid
  • Temperature, K; Liquid
  • Mole fraction - 4; Liquid
  • Pressure, kPa; Liquid
  • Frequency, MHz; Liquid
  • Liquid
  • Sing-around technique in a fixed-path interferometer
  • 50
  • POMD
  • 4
  • 1
  • Surface tension liquid-gas, N/m ; Liquid
  • Mole fraction - 4; Liquid
  • Temperature, K; Liquid
  • Liquid
  • Gas
  • Pendant drop shape
  • 9