Measurements and Modeling of Thermodynamic Properties of Binary Systems Comprising (2-Amino-2-methyl-1-propanol with Acetonitrile, Toluene, 1-Pentanol or 1-Hexanol) at Different Temperatures

Abstract

In this work densities, speeds of sound, and refractive indices of the binary mixtures involving 2-amino-2-methyl-1-propanol (AMP) with acetonitrile, toluene, 1-pentanol, and 1-hexanol were measured at different temperatures, T = (303.15, 313.15 and 323.15) K over the whole composition range (x AMP = 0−1) and at atmospheric pressure. The derived properties including excess molar volumes, V m E , isentropic compressibilities, κ s , deviation in isentropic compressibilities, Δκ s , and deviation in refractive indices, Δn D were calculated from the experimental densities, speeds of sound, and refractive indices and correlated as a function of temperature using the Redlich−Kister polynomial equation. The excess properties of the prepared binary mixtures were found to be positive, negative, or S-shape curves as a function of the composition of x AMP . The results have been interpreted in terms of molecular interactions and molecular structures occurring between the binary systems.

Interactions between Ethyl Lactate and Substituted Ethanols or Ethyl Acetate: Thermodynamic, FT-IR Spectroscopic, DFT Method, and PC-SAFT EoS Studies

“…The details of measurements and the calibration of the instruments were described earlier. 23 The uncertainties were estimated for density, speed of sound, and refractive index measurements within 0.0009 g cm −3 , 2.91 m s −2 , and 0.0006, respectively. Figure S1 illustrates the comparison of the experimental density, speed of sound, and refractive index of pure liquids together with the available literature data 1,9,13,15−17,19−22,24−37 at all of the studied temperatures (Table 2).…”

“…The densities and speed of sound were measured with Anton Paar, DSA 5000 M, Austria, and the refractive index was determined using an automated refractometer (Anton Paar, Abbemat 3200, Austria). The details of measurements and the calibration of the instruments were described earlier . The uncertainties were estimated for density, speed of sound, and refractive index measurements within 0.0009 g cm –3 , 2.91 m s –2 , and 0.0006, respectively.…”

Densities and Sound Speeds of Binary Mixtures of Cyclohexane + Benzene (or Toluene, or Ethylbenzene or o-, m-, p-Xylene) within the Temperature Range of 293.15–333.15 K and Ambient Pressure: Experimental, Correlation, and Modeling Study

“…PC-SAFT EoS is known for good results in modeling various thermophysical properties of pure fluids and mixtures. PC-SAFT EoS has recently been successfully applied to model the density and speed of sound of binary mixtures. − For mixtures composed of nonassociating fluids, like the fluids studied in this article, the PC-SAFT EoS has ideal gas (id), hard-chain (hc), and dispersion (disp) contribution terms. This EoS written in terms of the Helmholtz energy A is given by eq A = A id + A hc + A disp …”