Excess Molar Enthalpies, Molar Heat Capacities, Densities, Viscosities, and Refractive Indices of Dimethyl Sulfoxide + 1-Propanol at (288.15, 298.15, and 308.15) K and at Normal Pressure

Abstract

Excess molar enthalpies, molar heat capacities, densities, viscosities, and refractive indices of dimethyl sulfoxide + 1-propanol have been measured at (288.15, 298.15, and 308.15) K and at normal pressure using an LKB microcalorimeter, a Perkin-Elmer differential scanning calorimeter, an Anton Paar density meter, a Schott-Geräte AVS unit, and an Abbe refractometer, respectively. Heat capacities of 1-propanol have been determined in the range 288.15 < T/K < 333.15. The results were fitted to the Redlich−Kister polynomial equation to obtain the adjustable parameters and standard deviations.

Volumetric Behavior of Binary Mixtures of Alkoxyethanols and Some Selected Amines at 298.15 K

“…DEA, being the least bulky branched amine, therefore has strongest interaction with 2-EtO-EtOH. Interstitial fittings of smaller molecules into molecules with larger molecular volumes have also been reported in binary mixtures of ethylacetoacetate and (C 4 -C 6 ) aliphatic ketones by Izonfuo and Kemeakegha [42], for binary mixtures of -methylpyrrolidone with (C 1 -C 10 ) alkan-1-ols [43], formamide and ethanol mixtures [44,45], and dimethylsulfoxide and alcohols [46][47][48]. In the binary mixed solvents with compositions above 0.50 mole fraction of 2-ethoxyethanol, intermolecular hydrogen bonding between unlike molecules predominates and the trend is similar to that in the binary mixtures of 2-methoxyethanol with the named amines.…”

Volumetric properties of binary mixtures of dimethyl sulfoxide with amines from (293.15 to 363.15)K

“…Amines are moderately polar but not as polar as alcohols of comparable molecular weights, and the polar nature of the N-H bond (due to the electronegativity difference of the two atoms) results in the formation of hydrogen bonds with other amines molecules, or other H-bonding systems, but N-HÁ Á ÁN hydrogen bonds are not strong as O-HÁ Á ÁO hydrogen bonds [32,33]. In addition, DMSO can provide an S@O group and the hydroxylamines in this work can provide OH or C-H groups for interactions [9]. The excess molar volume values in this work show positive deviations throughout the composition range at all temperatures, indicating that there were no strong intermolecular interactions.…”

“…Furthermore, the properties, such as solubility, kinetic property, density, viscosity and so forth, are required in designing acid gas treatment equipment with new solvents. To our knowledge, the binary mixtures formed by DMSO and some alcohols have been studied [8][9][10]. Wang et al [11] conducted a research on densities and volumetric properties of DMSO with xylene.…”

Experimental densities and derived thermodynamic properties of liquid propan-1-ol at temperatures from 298 to 423K and at pressures up to 40MPa

“…(∂ 2 p/∂ 2 T) has small absolute values (for example for propan-1-ol in the liquid phase it is within 0.8 × 10 −3 to 0.2 × 10 −2 MPa/K 2 , see Fig. 5) and is often known with [121]; ( ), [123]; (×), [122]; ( ), [130]; (+), [134]; ( ), [120]; (♦), [106]; ( ), [136]; ( ), [118]; ( ), [135]; ( ), [137]; ( ), [141]; ( ), [52]; ( ), [142]; (---), this work calculated with Tait EOS (18); (----), Khasanshin [92]; (·········), Marczak et al [47]; (-· -· -·), Rubini et al [131]. (Right): (᭹), [55]; ( ), [142]; (---), this work calculated with Tait EOS (18).…”