Deep Eutectic Solvents highlights well-established research and technology on applications of DESs in corrosion sciences, protein chemistry, and organic synthesis, as well as separation science. This book provides state-of-the-art research that will revolutionize modern practices. Neoteric solvents have been proposed as a better substitute to these harmful organic solvents, and scientists have come up with various neoteric solvents in the last few years like Deep Eutectic solvents (DESs). DESs are defined as a system formed from a eutectic mixture of Lewis or Brønsted acids and bases with various ionic species- whereas ionic liquids (ILs) consist of a discrete anion and a cation. DESs stand out as a greener and cheaper neoteric solvent as compared to ILs. DESs are denser than water and fairly polar, thus can be utilized as non-aqueous substitute to water in many separation processes. DESs have very high distribution coefficient of solutes, and even dissolves gases and metal oxides selectively. They also readily dissolve organic macromolecules, thereby becoming useful in pharmacological applications.