“…Remarkably, the binary phase diagram demonstrates that the melting point of DESs, composed of specific HBA and HBD combinations, is significantly lower than that of their individual components. 90 , 91 For example, choline chloride-urea (ChCl-U) melts at just 12°C, whereas ChCl and urea have melting points of 303°C and 134°C, respectively. Sun and colleagues explained ChCl-U’s structural properties using molecular dynamics simulations.…”