Recrystallization (chemistry) | Wikipedia audio article
Channel: wikipedia tts
Date: 2018-12-27

This is an audio version of the Wikipedia Article:
https://en.wikipedia.org/wiki/Recrystallization_(chemistry)


00:00:30 1 Chemistry
00:01:07 1.1 Single-solvent recrystallization
00:03:30 1.2 Multi-solvent recrystallization
00:04:48 1.3 Hot filtration-recrystallization
00:06:37 1.4 Seeding
00:07:08 1.5 Single perfect crystals (for X-ray analysis)
00:10:15 2 Ice
00:10:41 3 See also



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SUMMARY
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In chemistry, recrystallization is a technique used to purify chemicals. By dissolving both impurities and a compound in an appropriate solvent, either the desired compound or impurities can be removed from the solution, leaving the other behind. It is named for the crystals often formed when the compound precipitates out. Alternatively, recrystallization can refer to the natural growth of larger ice crystals at the expense of smaller ones.