Abstract
In accordance with the ideal associated solution model, all departures from ideality of a mixture of two interacting non-electrolytes A and B can be accounted for in terms of the ideal properties of the ternary system comprising A, B, and their 1:1 complex AB co-existing at equilibrium. This article shows that the ideal associated solution model in conjunction with an ideal viscosity equation put forward by Schutte et al. (Can J Chem 67:446–448, 1989) can describe the viscosities of highly non-ideal binary mixtures of chloroform (A) and diisopropyl ether (B) over the entire composition range very accurately. In this context, the applicability of Grunberg–Nissan equation (Grunberg and Nissan in: Nature 164:799–800, 1949) has also been tested to describe the composition dependence of the viscosities of chloroform (A) + diisopropyl ether (B) system. The quality of fit in the former case, however, is somewhat better compared to that of the later. Further, the former model provides an equilibrium speciation of A, B, and AB in the chloroform (A) + diisopropyl ether (B) system thus offering a complete description of the equilibrium composition in the mixtures. This study recommends the analysis of the viscosity of mixtures of non-electrolytes where there is convincing evidence for the existence of a complex of the type mentioned above on the basis of the ideal associated solution model.
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The authors acknowledge the financial support by the Presidency University, Kolkata, India.
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Conceptualization: [BD]; Methodology: [SB]; Formal analysis and investigation: [SB]; Writing—original draft preparation: [SB]; Writing—review and editing: [BD]; Funding acquisition: [BD]; Resources: [BD]; Supervision: [BD].
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Bajpayee, S., Das, B. Speciation in Chloroform + Diisopropyl Ether Binaries in the Light of the Ideal Associated Solution Model Using Viscometric Data. J Solution Chem 51, 126–134 (2022). https://doi.org/10.1007/s10953-022-01142-6
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DOI: https://doi.org/10.1007/s10953-022-01142-6