Abstract
Experimental values of density (\(\rho\)), speed of sound (u) and viscosity (\(\eta\)) of binary mixtures of 2-isopropoxy ethanol with dipropylamine, diethylamine and triethylamine at temperatures (298.15, 303.15 and 308.15) K are reported. Various excess and deviation properties were calculated using these experimentally measured values. A stronger solute–solvent interaction compared to solute–solute or solvent–solvent interactions, due to formation of hydrogen bonding is confirmed by the trends of these parameters. The excess and deviation properties were correlated with composition using Redlich–Kister polynomial. Density, speed of sound and viscosity data were correlated to composition using Jouyban–Acree model. Further, change in enthalpy (\(\Delta {H}^{*}\)) and change in entropy (\(\Delta {S}^{*}\)) of viscous flow were calculated using the viscosity data. Various semi-empirical models of viscosity were tested. The correlation ability of tested models increases with increase in the number of adjustable parameters. FT-IR spectra of these mixtures also support the results obtained from calculated parameters.
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Acknowledgements
One of the authors (Likhish Dhingra) wish to acknowledge University Grant Commission (U.G.C.), New Delhi, India for their financial support in the form of Junior Research Fellowship via Letter no. 20/12/2015(ii)EU-V dated 17-05-2016.
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This work was supported by the University Grants Commission [20/12/2015(ii)EU-V dated 17–05-2016].
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GPD: Conceptualization, Validation, investigation, Resources, Writing- Review & Editing, Supervision. LD: Conceptualization, Resources, Writing- original draft preparation, Visualization, Funding acquisition.
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Dubey, G.P., Dhingra, L. Thermodynamic and Spectral Investigation of Binary Liquid Mixtures Of 2-Isopropoxy Ethanol with Amines at (298.15, 303.15 and 308.15) K. J Solution Chem 51, 135–166 (2022). https://doi.org/10.1007/s10953-021-01136-w
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DOI: https://doi.org/10.1007/s10953-021-01136-w