Choline chloride-hexanoic acid deep eutectic solvent: structure, stability and aggregation behaviour in light rare earth extraction
Deep eutectic solvents (DESs) formed by mixing a hydrogen bond donor (HBD) and hydrogen bond acceptor (HBA) in specific molar ratios have emerged as green solvents because of their advantageous physicochemical properties, biodegradability and low toxicity. In the present work, a hydrophobic DES (HDES) composed of choli...