Measurement and Modeling of Volumetric Properties and Speeds of Sound of Several Mixtures of Alcohol Liquids Containing Butanediol

Abstract

Densities and speeds of sound for the pure as well as binary mixtures of 1,2-butanediol and benzyl alcohol, 2-phenylethanol, 2-butanol, and 1,3-butanediol were measured over the 0 to 1 composition range and at six different temperatures between 298.150 K and 323.150 K with an interval of 5 K and at atmospheric pressure using a vibrating tube densimeter.The experimental values were used to calculate excess molar volume, V m E , excess isentropic compressibility, K S E , excess thermal expansion coefficient, α p E , infinite partial molar volumes, V̅ i ∞ and excess partial molar volumes at infinite dilution, V̅ i E,∞ . The sign and magnitude of mixing quantities have been used to discuss the nature and strength of molecular interactions in binary mixtures. The calculated excess values and deviation quantities were fitted to the Redlich−Kister polynomials equation. Furthermore, it has been checked how the calculated values of densities and excess molar volumes using the Tao−Mason equation of state compare with the experimental ones.

Experimental High-Temperature, High-Pressure Density Measurement and Perturbed-Chain Statistical Associating Fluid Theory Modeling of Dimethyl Sulfoxide, Isoamyl Acetate, and Benzyl Alcohol

“…(a) Density data and (b) deviations between measured density data and those correlated with the new modified Tait equation of benzyl alcohol at temperatures: (○), 298.15 K; (▲), 318.15 K; (◇), 338.15 K; (▼), 358.15 K; (□), 378.15 K; (●), 398.15 K; (△), 418.15 K; (◆), 438.15 K; (×), 458.15 K; and (★), 473.15 K. Solid lines, dashed lines, and symbols are new modified Tait, PC-SAFT correlation, and experimental data, respectively. Literature data at temperatures (red symbols) (▶) 298.15 K; (◀) 308.15 K; and (∗) 318.15 K.…”

“…Derived properties of benzyl alcohol (a) thermal expansion coefficient (α p ), (b) isothermal compressibility (κ T ), (c) isobaric heat capacity ( C p ), and (d) speed of sound ( u ) at temperatures: (○), 298.15 K; (▲), 318.15 K; (◇), 338.15 K; (▼), 358.15 K; (□), 378.15 K; (●), 398.15 K; (△), 418.15 K; (◆), 438.15 K; (×), 458.15 K; and (★), 473.15 K. Solid lines and dashed lines are new modified Tait and PC-SAFT correlation, respectively. Literature data ,,, at temperatures (red symbols) (▶) 298.15 K; (⬠) 300 K; (▽) 303.15 K; (◀) 308.15 K; (filled rectangle) 313.15 K; (∗) 318.15 K; and (◊) 323.15.…”

“…The solvents were used without further purification. The density, thermal expansion coefficient, refractive index, and speed of sound of materials were measured at temperatures of 293.15–333.15 K and atmospheric pressure and compared to data available in the literature studies − ,− (Table S1). The experimental data show good agreement with the data reported in the literature studies.…”

Densities and Viscosities for Binary Liquid Mixtures of Butan-1-ol + Propane-1,2-diol, + Butane-1,2-diol and 2-Methylpropan-1-ol + Propane-1,2-diol, + Butane-1,2-diol from 298.15 to 333.15 K at 0.1 MPa

“…Zorebski et al 10 also measured the density of binary mixtures of propane-1,2-diol with methanol, propan-1-ol, hexan-1-ol, octan-1-ol, and nonan-1-ol from 293.15 to 318.15 K. They calculated the excess molar volumes of the mixtures finding positive and negative deviations. Recently, Alavianmehr et al 4 measured the density of 1,2-butanediol + 2-butanol at atmospheric pressure from 298.15 to 323.15 K. To the best of our knowledge, density and viscosity measurements of 2-methylpropan-1-ol + butane-1,2-diol, 2methylpropan-1-ol + propane-1,2-diol, and butan-1-ol + propane-1,2-diol have not been reported in the literature.…”

“…On the other hand, glycols are widely used in the automotive, textile, pharmaceutical, petrochemical, and cosmetics industries among others . The study of the pure components and binary mixtures of alcohols with bifunctional hydroxyl groups as in the alkanediols is important due to the formation of inter- and intramolecular hydrogen bonding . The interpretation of the effects of mixing is extremely difficult because of the multiple possibilities of interaction and effects of size. , In this work, thermodynamic properties of mixtures of alcohols + alkanediols have been measured to explain the effect of the chain of carbon and the number and positions of the glycol hydroxyl groups in the modification of alcohol structure.…”