Is there depth to eutectic solvents?

We define an empirical descriptor of eutectic depth that allows easy comparison between mixtures distinct chemical nature. The molecular origin the large melting point depressions observed for deep solvents (DESs) is discussed through examples three well-studied mixtures: urea + choline chloride, ethylene glycol chloride and (–)-menthol thymol. show link state-of-the-art knowledge DES liquid microstructure its macroscopic properties still missing. call experimental quantification balance interactions disorder at level subsequent incorporation this data in thermodynamic models. This would facilitate calculation prediction solvation depth. • An mixtures. Disorder a mixture facilitated by variety hydrogen bonds. Balance intermolecular basis eutectics. Experimental studies will help design