SYNTHESIS AND RESEARCH OF NEW DEEP EUTECTIC SOLVENTS BASED ON BETAINE AND CHOLINE CHLORIDE
DOI:
https://doi.org/10.51580/2025-2.2710-1185.20Keywords:
eutectic solvents, betaine, choline chloride, hydrogen bond acceptor, hydrogen bond donor, ionic liquid systems.Abstract
Introduction. Deep eutectic solvents (DESs) are easy to synthesize, exhibit high purity,
and are, importantly, cost-effective. Recent studies have shown that they are biodegradable,
environmentally friendly, and hydrophobic. DESs are typically described as mixtures of a hydrogen bond
acceptor (HBA) and a hydrogen bond donor (HBD), which, when combined, form a eutectic mixture with
a melting point lower than that of its individual components. The purpose of the work: is to synthesize
new DESs based on betaine and examine their physicochemical properties. Results and discussions: the
optimal synthesis ratio for these DESs was determined. Their pH values were found to be 6.85 and 7.0,
respectively. The density and viscosity were measured, and the functional groups and interactions were
analyzed through IR spectroscopy. Conclusion: It was demonstrated that the proposed deep eutectic
solvents, due to their unique structural properties, can be utilized in various industrial applications due to
their optimal chemical and physical characteristics.
