Recrystallisation

In this video I look at how (and why) recrystallisation is used to purify an organic solid. It is one in a series of short videos looking at the main organic practical techniques: heat & distill; reflux distillation; washing and drying in solvent extraction; recrystallisation and melting point determination; and others

In this video I look at how to remove water that has "got caught up in" an organic liquid. Known as "drying", this procedure is carried out in a small conical flask, using a drying agent such as anhydrous calcium chloride or anhydrous sodium sulfate. It is one in a series of short videos looking at the main organic practical techniques: heat & distill; reflux distillation; washing and drying in solvent extraction; recrystallisation and melting point determination; and others