Mixing properties of propyl acetate+aromatic hydrocarbons at 298.15 K

Acoustical Properties of Binary Mixtures of Heptane with Ethyl Acetate or Butyl Acetate

“…In this case, consideration was given to the Rackett equation of state and HBT model in order to analyze how accurate densities are predicted. According to Rackett model (8), the density could be described as Eq. 6:…”

“…Therefore, as a continuation of our ongoing studies on thermo-acoustical properties of binary liquid mixtures, we report here the ultrasonic velocity and density of binary mixtures of heptane with ethyl acetate or butyl acetate over the entire composition range at temperatures 293, 298 and 303 K. The experimental results were used to calculate ∆u, ∆κ s and E f L , and the computed results were fitted to Redlich-Kister polynomial equation. The Rackett and Hankinson-Brobst-Thomson (HBT) models 8,9 have been applied to compare the difference between predicted and experimental density. Vangeel's, Nomoto's and Junjie's relation and Collision Factor Theory (CFT) 10 were also used to correlate the ultrasonic velocity data.…”

Measurements of Density and Refractive Index of Soybean Oil + Short Aliphatic Alcohols

“…As was reported in previous studies [1][2][3][4], this kind of mixture shows phase splitting for molecules with high activated hydroxyl groups, due to the steric hindrance. In fact, three mixtures (soybean oil + methanol, ethanol, or 2-propanol) show inmiscibility at high concentrations of the solvent.…”

“…It is not always possible to obtain reliable values, specially when concerned with mixtures at non-standard conditions. In the scope of investigating the physical properties related to equipment design in the natural oils industry and new environmental friendly procedures of extraction and refining such as modified distillation or wintering, we present as a continuation of previous studies [1][2][3][4] the temperature dependence of the density and refractive index of short aliphatic alcohols (methanol, ethanol, 1-propanol, 2-propanol, 1-butanol) + natural soybean oil over the range from 283.15 to 298.15 K at atmospheric pressure, as a function of molar fraction. From the experimental values, derived properties were computed, using a temperature-dependent Redlich-Kister type polynomial.…”

“…2 To whom correspondence should be addressed. E-mail: iqpredij@vc.ehu.es 3 on the presence of double bonds, chain lengths, and isomeric structures of fatty acids and molecular characteristics of triglycerides in solvents. Despite these efforts, a considerable lack of accuracy or thermodynamic consistency in some data in the open literature is observed, resulting from the different origins of fatty substances and the complexity of their composition and structure.…”