Bromoethane - Laboratory and Commercial Preparation

Bromoethane is a important organic compound which is used in Industry and day-to-day life.

Lets have a look at some of the uses of bromoethane.

Bromoethane is used as a solvent.

It is used as an anesthetic in medicine.

Bromoethane is also used as a refrigerant and fumigant.

The common name for bromoethane is ethyl bromide.

The structure of bromoethane is,

Let’s understand how bromoethane can be synthesized.

There are many methods used to prepare bromoethane in laboratories.

Let’s understand laboratory method for preparation of bromoethane using potassium bromide .

In this method , reaction of ethanol with a mixture of potassium bromide in the presence of sulphuric acids takes place.

Now let us step-wise look at the procedure.

First we mix ethyl alcohol and concentrated sulfuric acid with continuous stirring.

The mixture is allowed to cool and is poured on to finely powdered potassium bromide.

The reaction mixture is allowed to stand overnight.

The next day ethyl bromide is distilled .

Ethyl bromide is washed, first with dilute sodium carbonate solution and then several times with water.

The obtained ethyl bromide is dried with calcium chloride and redistilled.

The reaction involved is

Let’s understand commercial method for preparation of bromoethane using ethene

Bromoethane is commercially prepared by the addition of Hydrobromic acid to ethene.

This method of preparation stands as a model for the synthesis of bromoalkanes in general.

Revision

The reaction involves in the preparation of bromoethane using potassium bromide by laboratory method

Bromoethane is commercially prepared by the addition of Hydrobromic acid to ethene.

The End