Synthesis and characterization of novel ternary deep eutectic solvents

A series of room-temperature ternary deep eutectic solvents (TDESs) were prepared from imidazolium halides, zinc halides and amides. The [BMIM]Cl–ZnCl2–acetamide (1:1:1) system shows the lowest freezing point (−60 °C) and lowest density in the series. The viscosity and conductivity of TDESs have an exponential relationship with temperature and can be fitted by Arrhenius equation.