Chapter 18

Decide on the most appropriate technique for removal of solvent by evaporation in the following examples: (a) A solution (15 mL) of nitrobenzene (b.pt. \(\left.210^{\circ} \mathrm{C}\right)\) in dichloromethane (b.pt. \(\left.44{ }^{\circ} \mathrm{C}\right)\). (b) A solution \((500 \mathrm{~mL})\) of naphthalene (m.pt. \(\left.80^{\circ} \mathrm{C}\right)\) in ethoxyethane (b.pt. \(\left.35^{\circ} \mathrm{C}\right)\). (c) A solution (2 \(2 \mathrm{~mL})\) of an unknown alcohol (b.pt. \(\left.>150^{\circ} \mathrm{C}\right)\) in ethyl ethanoate (b.pt. \(78^{\circ} \mathrm{C}\) ).