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Laboratory Tips Safety proceedures, test reagents, drilling rubber stoppers, bending glass tubes, etc. Contributed to by chemists.

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 #1 
Old 2003-12-21, 04:37
jay_dawg jay_dawg is offline
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Default Iodine-Potasium Iodide

Ok i have some Potasium Iodide,i was wondering about how i would go about extracting some Iodine out of it.(if it is possible)
 #2 
Old 2003-12-21, 19:34
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Default Re: Iodine-Potasium Iodide

Call me stupid but I think sulphuric acid will drop crystals out of the stuff.



Don't quote on that.

Madchemist mentioned something a while back about this.

Jam.
 #3 
Old 2003-12-22, 07:34
Spook Spook is offline
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Default Re: Iodine-Potasium Iodide

yeah aciifying it will give you free available iodine to play with.
 #4 
Old 2003-12-22, 13:17
jay_dawg jay_dawg is offline
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Default Re: Iodine-Potasium Iodide

i have sulphuric acid...i need more details though.
 #5 
Old 2003-12-22, 14:01
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Default Re: Iodine-Potasium Iodide

http://www.totse.com/bbs/Forum26/HTML/003138.html
 #6 
Old 2003-12-22, 14:06
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Default Re: Iodine-Potasium Iodide

http://www.totse.com/bbs/Forum26/HTML/003246.html
 #7 
Old 2003-12-22, 15:36
AR-180 AR-180 is offline
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Default Re: Iodine-Potasium Iodide

is there any way of getting potassium iodide out of iodized table salt?
 #8 
Old 2003-12-22, 20:29
kman kman is offline
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Default Re: Iodine-Potasium Iodide

I think a chemist with a complete lab could do it, but I don't think it's easy.
 #9 
Old 2003-12-28, 08:25
dan46 dan46 is offline
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Default Re: Iodine-Potasium Iodide

that's a god damned waste of a good chem that can be used with another otc chem to make a red p sub as well
 #10 
Old 2003-12-29, 18:17
gofastjack gofastjack is offline
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Default Re: Iodine-Potasium Iodide

quote:Originally posted by dan46:

that's a god damned waste of a good chem that can be used with another otc chem to make a red p sub as well

well that's a good bit of info. care to share what the otc product is that you can use
 #11 
Old 2004-01-04, 07:29
dan46 dan46 is offline
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Default Re: Iodine-Potasium Iodide

ok, if you wish..

phosphoric acid 85%--

around 48 dollars a gal around my little town

or better still there is a fert available at some h despots and the like (cheap) that contains

orthophosphorus/phosphonic which is also phosphorus acid as well as phosphoric acid

--actually two very competitive brands can be had all over the land

the radiation sickness powder mentioned can be used to convert the entire bag to the "good stuff'

dont believe me ?

there are many success stories perhaps one has made it into Rhodium by now

If not, it soon will be unless the knowing are keeping it to themselves

perhaps I should keep this mum



[This message has been edited by dan46 (edited 01-06-2004).]
 #12 
Old 2004-04-22, 15:28
fearnoevil fearnoevil is offline
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Default Re: Iodine-Potasium Iodide

quote:Originally posted by dan46:

ok, if you wish..

phosphoric acid 85%--

around 48 dollars a gal around my little town

or better still there is a fert available at some h despots and the like (cheap) that contains

orthophosphorus/phosphonic which is also phosphorus acid as well as phosphoric acid

--actually two very competitive brands can be had all over the land



[This message has been edited by dan46 (edited 01-06-2004).]

OK, confused again. I started off thinking that phosphorus and phosphoric acid were the same/similar. Then read a couple of posts wherein I (wrongly?) got the idea that they were different or not interchangeable. Now after reading Dan's post am I to assume they're the same or interchangeable at least? I'd greatly appreciate being put on the right track, thanks
 #13 
Old 2004-04-22, 18:06
JibJunkie JibJunkie is offline
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Default Re: Iodine-Potasium Iodide

Fear, I think you were right the first time. Phosphorous Acid is what you want (H3PO3) not phosphoric acid (Which I believe is H3PO2, but I could be way off)

This is just from stuff I've read here, I have no experience with H3PO3, so take it with a grain of salt and let someone else verify it.
 #14 
Old 2004-04-22, 21:04
Random_Fool Random_Fool is offline
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Default Re: Iodine-Potasium Iodide

Phosphoric -> H3O4P or as more commonly put H3PO4 also may be shown as PO(OH)3

Phosphorous -> H3O3P or as more commonly put H3PO3 also could be shown as P(OH)3

ortho-Phosphorous (o-phosphorous) -> P(OH)3 same as phosphoric

<note all refering to the acid form not a salted form>

They arent the same,, possible phosphorous could be oxidized to phosphoric,, but that would be a waste IF it where to work which im not sure if it would.

<edit - added info on ortho phosphorous as well as spelling idiocy changes)



[This message has been edited by Random_Fool (edited 04-22-2004).]
 #15 
Old 2004-04-22, 22:05
fearnoevil fearnoevil is offline
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Default Re: Iodine-Potasium Iodide

Hey Jib,

Yeah being ignorant in the field of chemistry as I am, it's tough to make heads or tails of some of the info here. But if you read Dan's post, isn't he saying he uses phosphoric acid? But then when you look at the context of that statement, it's not really clear what he's using the phosphoric acid for. To me it seems that he's saying to mix KI with H3PO4 but I'm just guessing...
 #16 
Old 2004-04-23, 04:32
fearnoevil fearnoevil is offline
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Default Re: Iodine-Potasium Iodide

Thanks for that info Random. Now would anyone care to shed some light on what Dan was referring to in his previous post? Better yet, if you're out there Dan, would you, or Swid, explain what you'd use to make a red p sub (provided it's not top secret, lol). If it is I'd understand - you'd probably have to kill me right after you told me, but hey I won't mind as the suspense is killing me anyway
 
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