Page 10 - Practical-workbook-organic-3 isa
P. 10

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
   5   6   7   8   9   10   11   12   13   14   15