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.
Brought to you by one of WonderHowTo's favorite scientists NurdRage.
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