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Updated: Oct 9, 2025

Preparation of Binary and Ternary Deep Eutectic Systems
Published on: October 31, 2019
Thermal Behavior of the Nimesulide-Salicylic Acid Eutectic Mixtures Prepared by Mechanosynthesis and
Mona Georgescu1, Viorica Meltzer1, Ioana Stănculescu1
1Department of Physical Chemistry, Faculty of Chemistry, University of Bucharest, Regina Elisabeta Boulevard No. 4-12, 030018 Bucharest, Romania.
Abstract:
Nimesulide, salicylic acid and their binary mixtures were studied by differential scanning calorimetry (DSC) and Fourier Transform Infrared spectroscopy (FTIR). The study of such systems is a promising and viable approach for solving the problem of poor solubility of materials in general and drug systems in particular. All areas of human activity are inextricably linked to materials, and thus, the study presented in the paper and not reported in the literature is very important and provides useful data for those working in various fields. The eutectic mixtures were obtained by mechanosynthesis and by recrystallization from ethanol over the entire 0-1 range of molar fractions. For both situations at the molar fraction of nimesulide 0.5, the mixture has a eutectic that suggests an increase in solubility at this composition. The interactions that take place between the components were determined with the help of the excess thermodynamic functions (GE, SE, µE), which highlight the deviation from the ideality of the considered binary systems.
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