Page 9 - Practical-organic-3

Reflux in Chemical Reactions

Water out

Condenser
◼ Reflux is a technique involves the
condensation of hot vapors which face the

cold surface of the condenser then return
back to the flask.

◼ A mixture of reactants and solvent is placed

Water in in a round bottom flask. This flask is

connected to a water-cooled condenser,
which is typically open to the atmosphere at

the top.
◼ The flask is heated in order to conduct the

Round bottom reaction by thermally accelerating it.
flask

Heat source

9