Abstract
Abstract Densities, ρ, and speed of sound, u for binary mixtures dipropylene glycol monomethyl ether and tripropylene glycol monomethyl ether with 2-methyl-1-propanol, 3-methyl-1-butnaol, and 2-methyl-2-butanol at T = 288.15, 298.15, and 308.15 K and atmospheric pressure over the entire range of composition have been measured using an Anton–Paar DSA 5000M densimeter. Excess molar volumes VmE, and deviations in isentropic compressibilities ΔκS have been calculated from experimental densities and speeds of sound. Comparison of the results has been made with earlier results. Deviations in intermolecular free length and deviations in acoustic impedance have also been calculated. The results have been discussed in terms of intermolecular interactions between component molecules of the mixtures.
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