A protic solvent is a solvent containing a hydrogen bonded to an electronegative atom. Some examples of protic solvents include water, ethanol, methanol, ammonia, formic acid and hydrogen fluoride.
Solvents are materials, usually liquids, used to dissolve one substance into another. There are protic and aprotic solvents. Protic solvents are capable of donating protons. The -OH group on protic solvents is their most distinguishable feature, although some protic solvents do not contain an -OH group. Nitromethane, with a chemical formula of CH3NO2, is one such example. Aprotic solvents do not contain an -OH group. Instead, they contain a C=O bond. Examples of aprotic solvents include acetone and ethyl acetate.