Watch this science video tutorial from Nurd Rage on how to make iodine from an alkali metal iodide, hydrochloric acid (HCI), and hydroxide peroxide (H2O2).
Warning: This reaction makes small amounts of chlorine gas and should be performed outside or in a fumehood.
This method is much cleaner than the sulfuric acid method.
Simply get some potassium or sodium iodide and dissolve in a minimal amount of water. Then add an equal amount of concentrated hydrochloric acid. Check this new volume and measure out five times more 3% hydrogen peroxide. Mix together the two solutions and let stand for ten minutes. Filter the iodine.
You can then purify by vaporization and crystallization.
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