How would you recrystallize acetanilide using ethanol and hexanes? I know this compound is not soluble with the hexanes solvent. But, where would I include ethanol in the procedure? Would I heat up the ethanol and then add hexanes dropwise?
There are two ways to do this:
Firstly you could dissolve your acetanilide in hot ethanol and add hexane dropwise (keeping the solution hot) until you detect some cloudiness then leave it to cool.
Secondly suspend your acetanilide in hot hexane and add ethanol dropwise (keeping the solution hot) until it dissolves then leave it to cool.
Scratching the interior surface of the flask can help creating nucleation sites, or the addition of a seed crystal of pure acetanilide if you have one.