Question

EXTRACTION OF EUGENOL

1) You removed the diethyl ether from the Eugenol by means of a simple distillation. What are two other methods by which the solvent could be removed?

Answer 1

The 2 other methods are as follows:

1) Open-Dish evaporation:

    The solvent can be removed by placing the solution in an open container. The container can be placed on a steam bath or hot plate and the solvent boiled off. To remove diethylether, leave the container at room temperature. This also removes the solvent as boiling point of diethyl ether is very less.

2) Reduced-pressure evaporation:

    The evaporation of solvent can also be done by placing the solution in a side-arm flask and it must be sealed and apply vacuum. In this method, under reduced pressure, the solvent can be removed at lower temperatures also.