Speeds of Sound and Isentropic Compressibilities in Binary Mixtures of 2-Propanol with Several 1-Alkanols at 298.15 K

Abstract

Speeds of sound and densities of 2-propanol +1-propanol, 2-propanol + 1-butanol, 2-propanol + 1-octanol, and 2-propanol + 1-hexanol have been measured over the entire composition range at 298.15 K. Speeds of sound of the binary mixtures have also been estimated from free length theory (FLT), collision factor theory (CFT), and Nomoto's relation (NR) and have been compared with experimental speeds of sound. The isentropic compressibilities, molar isentropic compressibilities, excess molar isentropic compressibilities, and excess speeds of sound have been calculated from experimental densities and speeds of sound. Excess molar isentropic compressibilities and excess speeds of sound of the binary mixtures were fitted to the RedlichKister equation.

Measurements and Modeling of Physicochemical Properties of Pure and Binary Mixtures Containing 1,2-Dimethoxyethane and Some Alcohols

“…The B i parameter can be obtained using eq where N A is the Avogadro’s number and r i is the molecular radius of the pure fluid, which is obtained using eq where b i is the van der Waals constant for the pure fluid i .…”

Hydrogen Bonding Interactions of m-Chlorotoluene with 1-Alkanol Analyzed by Thermodynamic, Fourier Transform Infrared Spectroscopy, Density Functional Theory, and Natural Bond Orbital

“…Prior to making the experimental measurements, all of the liquids were double distilled and partially degassed with a vacuum pump in an inert atmosphere. The purity of all of the solvents was adjudged by comparing their measured densities, speed of sound, heat capacities, and thermal expansion coefficient to those of corresponding pure liquids available in the literature. ,,,− The comparative data are listed in Table .…”

Excess Molar Isentropic Compressibilities, Excess Molar Volumes, and Excess Sound Speeds of the 1-Propanol + Diethyl Ether + 1-Octanol Ternary Mixture and Constituent Binary Mixtures at 298.15 K

“…These compounds were used (as received) without further purification. The pure compound densities, sound speeds, and molar isentropic compressibilities at 298.15 are shown in Table I together with literature data [1,[13][14][15][16][17][18][19][20][21][22][23][24].…”

“…1208.1 799.60 [14] Lit. 1207.1 [17] 76.57 a 143.85 [23] 64.2449 800.62 [15] 1205.42 [18] DiethylExp. 708.…”

“…821.62 [16] Lit. 1348 [19] 133.10 c 305.25 [24] 106.1533 821.72 [15] 1347.9 [15] a Derived from measured densities from this study and the isobaric expansivity α p,i in Ref. 20.…”