Sciencemadness Discussion Board

Iodine from Copper I iodide?

numos - 22-3-2014 at 22:03

I recently acquired a 50g tamper sealed bottle of Copper I iodide, labeled as 99.999% pure.

How would I isolate elemental iodine from it? Is it similar to isolating iodine from alkali metal iodide? Using sulfuric acid, or HCl and hydrogen peroxide?

Finally one thing confuses me, the NFPA rating for the copper iodide on the bottle is 101 (health, flam., reactivity) but on the wiki page the rating is 110.
http://en.wikipedia.org/wiki/Copper%28I%29_iodide
which is correct?

DraconicAcid - 22-3-2014 at 22:16

I doubt it would be flammable.

Texium - 22-3-2014 at 22:24

It seems that the chemical supplier is much more likely to have the proper information on it than Wikipedia is.

numos - 22-3-2014 at 22:29

Ok thanks, that's what I though. Any ideas on Iodine isolation? I originally bought this to make (Cu Py3)I shown in nurdrage's video,
https://www.youtube.com/watch?v=8jDFx7yeBvw
but there's got to be more than that!

blogfast25 - 23-3-2014 at 05:31

Quote: Originally posted by numos  
I recently acquired a 50g tamper sealed bottle of Copper I iodide, labeled as 99.999% pure.

How would I isolate elemental iodine from it?


DON'T!! Don't waste such a precious chemical to pursue another that is so easy to prepare (NaI + H2O2, for instance). You've got a 5N compound there, ferchr*ssakes! :(

numos - 23-3-2014 at 20:15

Quote: Originally posted by blogfast25  
Quote: Originally posted by numos  
I recently acquired a 50g tamper sealed bottle of Copper I iodide, labeled as 99.999% pure.

How would I isolate elemental iodine from it?


DON'T!! Don't waste such a precious chemical to pursue another that is so easy to prepare (NaI + H2O2, for instance). You've got a 5N compound there, ferchr*ssakes! :(


I was confused by this until I looked up the price of Copper I iodide on Sigma Aldrish... this quantity would cost nearly $260. The guy I bought it from was an idiot... I paid $18 for the bottle, hence not feeling bad about using it. I will keep it tamper sealed for now.

Excuse my ignorance, but what does 5n mean?

and THANK YOU for the warning, I would have thrown $200 down the drain. :o

[Edited on 3-24-2014 by numos]

Fantasma4500 - 23-3-2014 at 23:10

99.999%
nearly broke my balls there

i suppose if you were to use it you could POSSIBLY use ascorbic acid as they tend to break copper salts down into metallic copper at some point, but i think you would need the iodine to be oxidized aswell still

it seems that CuI2 can be made by CuSO4 + KI simply, this would be easy to thereafter seperate out and perhaps be possible to make into copper and iodine from the dry product?

blogfast25 - 24-3-2014 at 05:02

Quote: Originally posted by numos  
Excuse my ignorance, but what does 5n mean?

and THANK YOU for the warning, I would have thrown $200 down the drain. :o

[Edited on 3-24-2014 by numos]


99.999 % = 5 nines = 5N

Now go and sell that stuff off in small amounts and make a tidy packet!