Make Iodine from an Alkali Metal Iodide, Hydrochloric Acid and Hydrogen Peroxide

How to 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: http://www.youtube.com/watch?v=2F_kPXbi2D8

Simple 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.

Our website http://www.nurdrage.com

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• DIY
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• iodine
• hydrochloric
• acid
• potassium
• sodium
• iodide
• chemistry
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• experiment
• project
• hydrogen
• peroxide

[mads9621]

And by the way: will it work with Lugol's Iodine? Lugol's does allways have some KI in it because of this equilibrium: I2 + I− ⇌ I3− so i thought the reaction would use the KI in the solution and then more would be formed due to Le Chatelier's principle.

[mads9621]

What are the chemical reactions involved in this experiment?

I think they are:

NaI + HCl -> NaCl + HI

2 HI + H2O2 -> I2 + 2 H2O

but I am not completely sure:)

[b1912313]

@cassiavc I would ask the same. Is there any formation of hydriodic acid? If I am interested on the hydriodic acid, can I filtrate it? How strong is HI compared to HCl? HI sounds to be a good acid to mess around with xD

[cassiavc]

what happens when hcl is added to sodium iodide?

[adam93306]

@KidsAboveTheRest is fucking your favorite word?

[KidsAboveTheRest]

how the fuck am i supost to fucking get this fucking shit in the fucking fist fucking place D:

[gboneu617]

hi .. i have a question !!

when i add my hydrochloric acid to my sodium iodide solution it precipitate iodine without using any hydrogen peroxide ...

[linutas]

@sickness2snipe the first think that pops up when i think about breaking bad is jesse saying bitch

[sickness2snipe]

@linutas what did i do?