Douglas E. Raynie, Amos Dwamena
Deep eutectic solvents (DESs) have a lower melting point than each of their individual components due to ion dipole interactions or hydrogen bonding. Traditionally, DES are used for processing metals through plating and have many synthesis applications. DES are able to be substituted for hazardous solvents that are traditionally used for metal plating and synthesis. This, along with many other advantageous properties, appear promising for the use of DESs as solvents or for use in electrochemical systems, particularly at low temperatures. Choline chloride:propylene glycol was a novel DES synthesized and analyzed for its properties, including melting point, viscosity, conductivity, heat capacity, and heat of fusion. A 1:5 ratio of choline chloride: propylene glycol was found to be most promising at low temperatures based on these results.
Kuehn, Kaila M.; Massmann, Camille M.; and Sovell, Natalie R.
"Choline Chloride Eutectics: Low Temperature Applications,"
The Journal of Undergraduate Research: Vol. 15, Article 5.
Available at: https://openprairie.sdstate.edu/jur/vol15/iss1/5