Answer to Question #53089 in Analytical Chemistry for rmachris
what is the best method to purify iodine?
The best method to purify iodine is sublimation. On heating at atmospheric pressure iodine sublimes, transformed into a purple vapour; under cooling, at atmospheric pressure, iodine vapor crystallizes, bypassing the liquid state. This is used in practice for the purification of iodine from the non-volatile impurities.
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