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Issue
Korean Journal of Chemical Engineering,
Vol.35, No.7, 1488-1499, 2018
Ultrasonic study on binary liquid mixtures of propiophenone with anilines and alkyl substituted anilines at T=303.15 to 318.15 K
Devi NG, Rao NVNBS, Sirija MR, Ramachandran D
Densities 'ρ', ultrasonic speeds of sound 'u' of binary mixtures of propiophenone (PPH) with aniline, NMethylaniline, N,N-dimethylaniline and N,N-diethylaniline were measured over the entire composition range from 303.15 K to 318.15 K and at atmospheric pressure 0.1MPa. Experimental data of ultrasonic sound were compared and discussed with the computed values of 'u' from various velocity theories like Nomoto's relation (UNOM), impedance relation (UIMP), Van Dael and Vangeel's ideal mix relation (UVDV), Rao's specific velocity relation (URAO), Junjie's theory (UJUN) and Jouyban-Acree's (UJOE) relation for the above binary mixtures over the entire mole fraction range at the studied temperatures. The results are satisfactory and are in agreement between the theoretical and the experimental values. Further, the molecular interaction parameter (α), average percentage error and Chi-square test values were computed by using the values of experimental and theoretical ultrasonic velocities. The Δu values were correlated with Redlich-Kister polynomial equation to compute the coefficients and the standard deviations of the binary mixtures. The results were analyzed in terms of intermolecular interactions.
Keywords: Ultrasonic Speed of Sound; Molecular Interaction Parameter; Nomato’s Relation; VanDeel’s Ideal Mixing Relation; Impedance Relation; Junjie’s Relation; Rao’s Specific Velocity and Jouyban-Acree’s Relation for Speed of Sound
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