Introduction: How to Make Iodine From an Alkali Metal Iodide, Hydrochloric Acid and Hydrogen Peroxide.

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Make iodine from an Alkali metal iodide, hydrochloric acid and hydrogen peroxide.

Warning: This reaction makes small amounts of chlorine gas and should be performed outside or in a fumehood.

Our previous iodine making video:

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.