One the sample is dissolved, the solution is cooled to force crystallization of the desired compound...
How to Perform a Recrystallization
By Anne Marie Helmenstine, Ph.D., About.com
After the solvent has been added to the impure solid, heat the suspension to fully dissolve the sample. Usually a hot water bath or steam bath is used, since these are gentle, controlled heat sources. A hot plate or gas burner is used in some situations.
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- How to Perform a Recrystallization - Introduction
- How to Perform a Recrystallization - Add the Solvent
- How to Perform a Recrystallization - Heat the Suspension
- How to Perform a Recrystallization - Cool the Solution
- How to Perform a Recrystallization - Filter and Dry the Product
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