The product may now be dried. Aspiring the product via vacuum filtration should remove much of the solvent. Open-air drying may be used as well. In some cases, the recrystallization may be repeated to further purify the sample.
How to Perform a Recrystallization
By Anne Marie Helmenstine, Ph.D., About.com Guide
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How to Perform a Recrystallization - Filter and Dry the Product
Crystals of purified solid are isolated by filration. This is usually done with vacuum filtration, sometimes washing the purified solid with chilled solvent. If you wash the product, be sure the solvent is cold, or else you run the risk of dissolving some of the sample.
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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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