Deep eutectic solvents (DES) represent a versatile class of green solvents formed from the eutectic mixing of hydrogen bond donors and acceptors, resulting in mixtures with melting points ...
When choline chloride and urea--both solids--are mixed together in a molar ratio of 1:2, a liquid mixture is formed that freezes at 12 C. As pure compounds, choline chloride ([HOCH 2 CH 2 N(CH 3) 3] + ...