A polar aprotic solvent is a solvent that lacks an acidic proton and is polar. Such solvents lack hydroxyl and amine groups. In contrast to protic solvents, these solvents do not serve as proton donors in hydrogen bonding, although they can be proton acceptors. Many solvents, including chlorocarbons and hydrocarbons, are classifiable as aprotic, but polar aprotic solvents are of particular interest for their ability to dissolve salts. Methods for purification of common solvents are available.
References
Pfennig, A. (1995). "Kirk-Othmer Encyclopedia of Chemical Technology, 4th Ed., Vol. 10. M. Howe-Grant (Editor). John Wiley & Sons, New York 1993. 1022 S. mit zahir. Abb. und Tab., geb., £ 185.00". Chemie Ingenieur Technik. 67 (3): 352–353. doi:10.1002/cite.330670323. ISSN 0009-286X.
