The conversion of alcohols to halogenoalkanes

A 3D rendered illustration of ethanol molecules in white against a grey background

Source: © Shutterstock

Try this practical or demonstration to produce bromoethane in a substitution reaction between ethanol and phosphorus tribromide. Includes kit list and safety instructions.

In this experiment, students observe what happens when they add drops of phosphorus tribromide to a test tube containing ethanol. A vigorous substitution reaction occurs, producing bromoethane and phosphorus acid. 

Make your lessons pop

Choose an account option to continue exploring our full range of articles and teaching resources

Free

Free access for everyone, everywhere. If you only need a few resources, start here.


What's included

  • One free teaching resource each month
  • Five free Education in Chemistry articles each month
  • Personalised email alerts and bookmarks