Question

In recrystallization, why is it necessary to allow enough time for your samples to dry?

Answer 1

Recrystalization wil be done for the enhancement in purity of the sample. Recrystalisation can be done in single or multiple solvents. The process of recrystalisation the sample should not soluble at room temperature, after heating to its boiling point the compound should be dissolved then settle the falsk or RBF to the rest possition and allowed to coll to RT then we can find some crystals which are highly pure than the previous compound. For this process we need to take some precautions. The sample should be dry because if the sample contains the solvent residue it can be soluble after adding the solvent at Roomtemmperature itslef. So there will be no crystals we can find after a long time.