Characteristic of a solvent used for recrystalization?

Answer 1

1.) it should not react with the substance to be dissolved. 2.) it should be relatively safe to handle (not poisonous or flammable). 3.) it should dissolve an appreciable amount of the substance to be purified when hot and it should be crystallize most of the substance when cold. 4.) it should not dissolved the impurities readily or it may dissolve these to small extent only or it should dissolve the impurities readily but not the desired substance. 5.) it could yield well formed crystallized of the desired substance. 6.) It should be capable of easy removal form the filtered crystals and therefore its boiling point should be preferably 60 to 100 C

Answer 2

A solvent used for recrystallization should be able to dissolve the compound at high temperatures to remove impurities and allow recrystallization upon cooling. It should have a high boiling point to facilitate evaporation, be non-reactive with the compound, and be easily removable from the crystals.