Applications of deep eutectic solvents for hard-to-separate liquid systems

Deep eutectic solvents (DESs) are low-freezing mixtures formed by hydrogen bond donor (HBD) and acceptor (HBA). The change of HBA and HBD type or their ratio gives rise to a variation of the formed DES structure and properties. Such designable features make DESs meet the specific separation requirement for various systems. This work overviews the applications of DESs in three typical hard-to-separate liquid systems classified based on the solute...