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

Year 2018, Volume: 21 Issue: 4, 191 - 200, 04.12.2018

Miguel Iglesias , Rebecca S. Andrade , Gonzalo Marino

https://doi.org/10.5541/ijot.427242

Cited By: 1

Abstract

In this work, the
applicability of Free Length and Collision Factor theories to predict
multicomponent isentropic compressibilities is analyzed and compared. To this
end, appropriate expansions for ternary mixtures were
derived from the original works, and then applied to a mixture containing dislike
compounds in terms of functional molecular groups. Excess molar volumes from
open literature and new experimental ultrasonic velocities of the mixture acetone+methanol+n-hexane
were used to compute the corresponding isentropic compressibilities. A good
accuracy was obtained when ternary prediction is attempted in this partially
soluble mixture at different temperatures by the Collision Factor theory. These
results show the versatility of this model for estimation studies in complex
multicomponent mixtures enclosing phase splitting.

Keywords

Ultrasonic velocity, isentropic compressibility, acetone, methanol, n-hexane, theoretical model

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