Ibuprofen Ibuprofen | Page 6

was gently covered and the funnel was shaken, then the funnel of the mouth was secured with a nut wrench to separate the phases. Once the phases were separated, the aqueous phase was collected in a 100 ml beaker, this extraction process was repeated twice. To the aqueous phase obtained from the extraction process was added a solution (see the molarity in the 2M guide calculations) of HCl, little by little and with constant agitation, until a pH of three was achieved. Finally, the mixture was taken to an ice bath to aid crystal formation.