Polar aprotic solvent

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.

Solvent	Chemical formula	Boiling point	Dielectric constant	Density	Dipole moment (D)
Polar aprotic solvents
acetone	C3H6O	56.05 °C	21.83	0.7845 g/cm3	2.91
acetonitrile	CH3CN	81.3 - 82.1 °C	38.3	0.776 g/cm3	3.20
dichloromethane	CH2Cl2	39.6 °C	9.08	1.3266 g/cm3	1.6
dimethylformamide	(CH3)2NCHO	153 °C	36.7	0.95 g/cm3	3.86
dimethylpropyleneurea	(CH3)2C4H6N2O	246.5 °C	36.12	1.064 g/cm3	4.23
dimethylsulfoxide	(CH3)2SO	189 °C	46.7	1.1 g/cm3	3.96
ethyl acetate	C4H8O2	77.11°C	6.02	0.902 g/cm3	1.88
hexamethylphosphoric triamide	[(CH3)2N]3PO	232.5 °C	29.6	1.03 g/cm3	5.38
tetrahydrofuran	C4H8O	66 °C	7.6	0.887 g/cm3	1.75