Gilded Posted September 19, 2004 Share Posted September 19, 2004 Well, the medicine I talked about is in crystal form but it's about 98% pure. Link to comment Share on other sites More sharing options...
budullewraagh Posted September 19, 2004 Share Posted September 19, 2004 Hmm... If you make nitrogen tri-iodide, it won't even explode if the iodine is >99,99%? Or was it the other way around? Horse hoof-ailment medicine is like 98% iodine, so if it's that way, it should work just fine. eh, yes it will explode if the iodine is < or > 99.99% pure. whats this hoof-ailment medicine? can you link me to some? Link to comment Share on other sites More sharing options...
Gilded Posted September 19, 2004 Share Posted September 19, 2004 Just noticed that it's not probably used anymore: http://www.theodoregray.com/PeriodicTable/Samples/053.7/index.s12.html That's 93% iodine (10 grams of resublimated iodine plus 3.5 grams of potassium iodide) and it's "said to be antique". Link to comment Share on other sites More sharing options...
budullewraagh Posted September 19, 2004 Share Posted September 19, 2004 actually, on his site, he mentioned: They are sold as a cure for some sort of horse hoof ailment, which means you can buy crystalline iodine on eBay, sometimes in large quantities. the plot thickens Link to comment Share on other sites More sharing options...
5614 Posted September 19, 2004 Author Share Posted September 19, 2004 seems interesting, but isnt iodine crystals quite expensive? or was i just looking on an expensive site? Link to comment Share on other sites More sharing options...
budullewraagh Posted September 19, 2004 Share Posted September 19, 2004 yes, yes they are, i just noticed. i guess i'll have to isolate the 5% iodine from tincture of iodine and oxidize the 5% potassium iodide in it as well Link to comment Share on other sites More sharing options...
Gilded Posted September 19, 2004 Share Posted September 19, 2004 Umm, isn't that bloody hard to do? :| Link to comment Share on other sites More sharing options...
pulkit Posted September 19, 2004 Share Posted September 19, 2004 A reaction between iodide and iodate under acidic conditions (HCl would do nicely) would release iodine. If you already have iodide, then a lot of the problem is solved. Iodate shouldn't be hard to get hold of as its quite a cheap reagent. Link to comment Share on other sites More sharing options...
budullewraagh Posted September 19, 2004 Share Posted September 19, 2004 sadly i dont have an iodate source:\ for the extraction i'll need some conc sulfuric, sodium hypochlorite and a bunch of coffee filters and glassware not terribly awful Link to comment Share on other sites More sharing options...
Lance Posted September 19, 2004 Share Posted September 19, 2004 http://sci-spot.com/Chemistry/iodine.htm <---linkage Link to comment Share on other sites More sharing options...
pulkit Posted September 19, 2004 Share Posted September 19, 2004 Another way is to dissolve your iodide in some organic solvent likechloroform or carbon tetrachloride.That too releases iodine. But then you'd need to get the iodine out of solution, which I think may be possible by heating. Link to comment Share on other sites More sharing options...
YT2095 Posted September 20, 2004 Share Posted September 20, 2004 sadly i dont have an iodate source:\ electrolise some KI, making KIO3, there`s your iodate evaporate the alcohol from tincture of iodine, then heat up the residue and collect the gas and condense it, that`ll be pure iodine Link to comment Share on other sites More sharing options...
budullewraagh Posted September 20, 2004 Share Posted September 20, 2004 wait, how does heating the residue get rid of the cations? Link to comment Share on other sites More sharing options...
YT2095 Posted September 20, 2004 Share Posted September 20, 2004 not a clue really, it`s never been a concern all I know is that the iodine sublimes and condenses on the bottom of my flask containing freezing mix Link to comment Share on other sites More sharing options...
budullewraagh Posted September 20, 2004 Share Posted September 20, 2004 hmm, i actually was thinking about using seaweed. apparently, if you acidify it with sulfuric acid it will form iodine anions. then add an oxidizer like hydrogen peroxide and you get iodine. anybody know how much iodine you get from various amounts of seaweed? Link to comment Share on other sites More sharing options...
pulkit Posted September 20, 2004 Share Posted September 20, 2004 Not so sure but intuitively I feel you'll need quite a lot of sea weed to get a decent amount of iodine. Also purification won't be all that easy because of all the impurities the sea weed would introduce. Link to comment Share on other sites More sharing options...
5614 Posted September 23, 2004 Author Share Posted September 23, 2004 hmm, i actually was thinking about using seaweed. apparently[/b'], if you acidify it with sulfuric acid it will form iodine anions. then add an oxidizer like hydrogen peroxide and you get iodine. you said "apparently" does this actually work? do you need vast quantities? is this a practically realsitic method of obtaining iodine? Link to comment Share on other sites More sharing options...
jdurg Posted September 23, 2004 Share Posted September 23, 2004 Actually, when making nitrogen triiodide it's a good thing to have some KI mixed in with the Iodine since that will allow it to dissolve in water a whole lot better, which will allow it to react with the ammonia a lot easier. Trust me on this. I've garnered much better yields of NI3 by having some iodide salts thrown into the mixture while it's reacting. The aqueous iodine is able to become more "intimate" with the ammonia thus resulting in a better reaction. Link to comment Share on other sites More sharing options...
YT2095 Posted September 23, 2004 Share Posted September 23, 2004 Wahahahaaaaa, geez does this convo ever take me back to when I was a kid it`s not all that hard actualy, just time consuming. you`ll need to dry alot of it 1`stly (about 5 kilo wet weight) then crush it up so that it`ll fit into a sauce pan with a lid (you need the lid idealy). then just put it on a fire and collect the ash, add water to it and filter it, there will be your Iodine rich chems and no, you DON`T need H2O2 to get iodine from it, infact you`ll prolly have some stuck to your saucepan lid! don`t be fooled, it really is THAT EASY! Link to comment Share on other sites More sharing options...
jdurg Posted September 23, 2004 Share Posted September 23, 2004 And the nitrogen triiodide you make will cause all the effort to be well worth it. NI3 is the whole reason why I got into chemistry, and it's the whole reason why I have a complete collection of the elements. (Minus fluorine and the radioactives). And they say you never learn things from watching tv. HA! (I found out about nitrogen triiodide by watching the movie 'The Manhattan Project'. It looked cool, and when my chem teacher said that I wasn't allowed to make it, it clinched the notion that I HAD to make it). Link to comment Share on other sites More sharing options...
5614 Posted September 23, 2004 Author Share Posted September 23, 2004 don`t be fooled, it really is THAT EASY! shame i live in london, cant wait till i next go down to the beach. does the stuff you buy in chinese food shops work? it will have been filtered and made edible and possibly cooked, so its quite likely it wont. Link to comment Share on other sites More sharing options...
YT2095 Posted September 23, 2004 Share Posted September 23, 2004 sure it`ll work, IF YOU WANT TO PAY FOR IT! considering there`s a totaly 100% free, as much as you can carry source out there! Link to comment Share on other sites More sharing options...
5614 Posted September 23, 2004 Author Share Posted September 23, 2004 but my point was that i wont go down to the beach until next summer, thats a while away, are you sure that the processed food version of seewead is still good enough? Link to comment Share on other sites More sharing options...
YT2095 Posted September 23, 2004 Share Posted September 23, 2004 are you sure that the processed food version of seewead is still good enough?why would I have changed my mind in the last 15 mins??? Link to comment Share on other sites More sharing options...
Gilded Posted September 23, 2004 Share Posted September 23, 2004 "I have a complete collection of the elements." Great to see that someone else is interested in element collecting. Perhaps we'll meet someday in an element collector meeting or something. "I have a complete collection of the elements. (Minus fluorine and the radioactives)." Oh but the radioactives are the best part, up to 95 that is. Uranium ore is easy to obtain (atleast in Finland you don't even need a permit to own even highly active ore samples), radium and promethium from antique clocks, thorium from lantern mantles (pure metal is quite easy to obtain too) and with the U-ore you get astatine, francium and radon in one sample. Also, a nice addition to your collection is a smoke detector ionization chamber; it contains americium and it's decay product neptunium. And as I mentioned in an earlier post, there's a little amount of plutonium in uranium-beryllium allanite. Oh, and technetium; that's a bit tricky, but there are companies that can provide small pieces of actual technetium metal. Link to comment Share on other sites More sharing options...
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