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oai:figshare.com:article/34020586 2026-09-29T03:03:28Z category_1 category_4 category_915 category_16 category_873 category_39 category_46 category_69 category_134 category_135 portal_63 item_type_6 month_year_09_2026

Volumetric Properties of Binary and Ternary Mixtures of Choline Chloride-Based Deep Eutectic Solvent with Water at Several Temperatures Prathiksha Prabhakar (24346676) Anantharaj Ramalingam (1449649) Biophysics Biochemistry Physical Sciences not elsewhere classified Physiology Chemical Sciences not elsewhere classified Ecology Immunology Inorganic Chemistry Virology Computational Biology structural effects related hydrogen bond donors experimental density data excess molar volumes >< sub >< strong specific interactions several temperatures densities entire composition range ></ sup >) several temperatures ></ sup intermolecular interactions volumetric properties ternary mixtures systems positive strongly dependent deviate significantly correlated using choline chloride better understanding Densities were measured for a series of choline chloride-based deep eutectic solvents (DESs) mixed with water over the entire composition range at several temperatures. The investigated systems include DESs formed with acids, polyols, and thiourea, as well as ternary DESs containing mixed hydrogen bond donors. From the experimental density data, excess molar volumes (<i>V</i>_<i>m</i>^<i>E</i>) were calculated and correlated using the Redlich–Kister polynomial equation. The excess molar volumes are strongly dependent on composition, temperature, and they deviate significantly from ideality. For all the systems positive <i>V</i>_<i>m</i>^<i>E</i> values were found, indicating the presence of strong specific interactions and effective molecular packing following mixing. Variations in H-bonding and structural effects related to the nature and stoichiometry of the hydrogen bond donors are reflected in differences in the magnitude and position of <i>V</i>_<i>m</i>^<i>E</i> extrema. These findings provide reliable volumetric data and contribute to a better understanding of intermolecular interactions in DES–water mixtures. 2026-09-28T00:00:00Z Text Journal contribution 10.1021/acs.jced.6c00330.s001 https://figshare.com/articles/journal_contribution/Volumetric_Properties_of_Binary_and_Ternary_Mixtures_of_Choline_Chloride-Based_Deep_Eutectic_Solvent_with_Water_at_Several_Temperatures/34020586 CC BY-NC 4.0