Thermodynamics Research Center / ThermoML | Thermochimica Acta

Mutual diffusion behavior of short chain alcohols + n-octane mixtures

Peng, S.[Sanguo], Zhang, S.[Shi], Zhang, Y.[Ying], Liu, X.[Xiangyang], He, M.[Maogang]
Thermochim. Acta 2016, 624, 1-7
ABSTRACT
Mutual diffusion coefficients of several short chain alcohols (ethanol, n-propanol and n-butanol) + n-octane mixtures in the temperature range from 283.2 K to 313.2 K at different concentrations were measured using holographic interferometry. The relation between the mutual diffusion coefficient with temperature, viscosity, concentration and molecular weight is investigated, respectively. The Onsager-Fuoss model is applied to analyse the various influence factors. A new correlation taking into account the effect of the temperature and concentration on the mutual diffusion coefficient is proposed to fit well the experimental data.
Compounds
# Formula Name
1 ClK potassium chloride
2 H2O water
3 C8H18 octane
4 C2H6O ethanol
5 C3H8O propan-1-ol
6 C4H10O butan-1-ol
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
  • 2
  • Binary diffusion coefficient, m2/s ; Liquid
  • Temperature, K; Liquid
  • Amount concentration (molarity), mol/dm3 - 1; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • digital holographic interferometry
  • 1
  • POMD
  • 4
  • 3
  • Binary diffusion coefficient, m2/s ; Liquid
  • Temperature, K; Liquid
  • Mass fraction - 4; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • digital holographic interferometry
  • 36
  • POMD
  • 5
  • 3
  • Binary diffusion coefficient, m2/s ; Liquid
  • Temperature, K; Liquid
  • Mass fraction - 5; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • digital holographic interferometry
  • 36
  • POMD
  • 6
  • 3
  • Binary diffusion coefficient, m2/s ; Liquid
  • Temperature, K; Liquid
  • Mass fraction - 6; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • digital holographic interferometry
  • 36