Densities, Sound Speed, and IR Studies of (Methanol + 1-Acetoxybutane) and (Methanol + 1,1-Dimethylethyl Ester) at (298.15, 303.15, 308.15, and 313.15) K

Abstract

Densities and sound speeds for (methanol + 1-acetoxybutane) and (methanol + 1,1-dimethylethyl ester) have been measured over the entire range of compositions, at temperatures of (298.15, 303.15, 308.15, and 313.15) K and at atmospheric pressure of about 0.1 MPa. From the experimental values of density and ultrasonic velocity, the excess molar volumes V E and deviations in isentropic compressibility Δκ s have been calculated. The V E and Δκ s are negative for both the binaries studied over the whole composition. FT-IR studies of these mixtures are also carried out at T = 298.15 K.

Exploration of volumetric, acoustic, thermodynamic and IR studies of binary mixtures of green solvent ethyl lactate with C3 alkanols at T=(303.15, 308.15, 313.15 and 318.15) K and atmospheric pressure

“…This observation is also supported by the excess volumetric and thermodynamic results obtained in this work. The bands due to intermolecular hydrogen bonding generally appear at longer wavelength [43][44][45]. Another striking inference that the least -OH frequency is seen for (EL + GLY) at 3297.1 cm −1 in 1:1 composition confirms the strong associating ability of glycerol in comparison with PG.…”

Preferential Solvation in Alkan-1-ol/Alkylbenzoate Binary Mixtures by Solvatochromic Probes

“…A useful way to analyze H-bonding stems from FT-IR spectra, a powerful tool to study inter-and intramolecular association based on the location and bandwidth of the OH band and the intensity of the first overtone. 50 H-bonding in alcohols exerts a considerable effect on the stretching vibration ν OÀH in the 3100À3700 cm À1 range, in which the spectra are informative of alcohol association. Typical variation of the IR spectra with increasing alcohol content has been observed.…”

Temperature dependence of isentropic compressibilities for the ternary mixture Acetone + Methanol + n-Hexane

“…nº 20,860-4 or 20,858-2, respectively) to remove trace amounts of water. The ultrasonic velocity measured experimentally for each component was compared with literature values in Table 1 [20][21][22][23][24][25][26][27][28][29][30]. Precautions were taken, such as cooling chemicals to reduce vapour pressure, before the samples preparation.…”