Making iodine
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- Опубликовано: 3 фев 2016
- Hello everyone! In this video, we will be extracting elemental iodine from iodine-povidone solution that you can buy from your local pharmacy.
It is a cool exercise, but it is definitely not a cost effective method of obtaining iodine. It is much cheaper to buy it directly if you can.
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Nile talks about lab safety: • Chemistry is dangerous. 
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I LOVE the color of Iodine gas, it's the most beautiful purple I know
That about TACN
The copper salt not the other one
Can i make nitrogen triiodide with methyl iodide?
I wonder what the light graph thingy for it looks like (spectrograph? Maybe?)
Brought to you by HBOMAX, which has the same purple and just gave me an ad for it. Hurray 😑
"It only took 30 seconds and you can see my crappy creation", you sound like my father.
Oof
Ooo self burn those are rare.
@@adityakatke4191 😂😂 love that show
I won't ruin 420 likes.
Oof
@@loganiushere ahh yiss, a man of culture, I see.
Nile: this might shock a lot of you..
Me: (not understanding what he is talking about 99% of the time) shocking.. yes, very shocking indeed
same HAHA
Main thing is it's not eye-o-deen lol
Fffffff
Oh my god, me too.
Ya, I remember being uneducated and not knowing a thing he was talking about. It was right now
The "weird effect" around 6:20 is probably because of the basic nature of the solution. Bases tend to have a soapy feel to them, which affects the surface tension such that, when circumstances are right (such as the droplet size and height that they're falling from being just right) droplets can slide around on top of the liquid before the droplet merges with the main volume of the solution.
+LateNightHacks That's actually really cool. I had no idea.
+TheBookDoctor Bases only feel soapy because they saponify esters of fatty acids on our skin. They don't affect surface tension themselves as don't have the same hydro/lipophilic structure like long chain fatty acids.
+LateNightHacks Thanks!
+Dev961000 The surface tension might be affected by the PVP, in basic solutions it´s insoluble but remember that its an equilibrium reaction, so there´s still some of the PVP even at high pH.
+Nile Red
Hey Nile, random question, I can only see some of the comments here, can't even see my own comment, any ideas? don't think I have changed any of my security settings, don't think I'm blocked either? bizarre... any ideas?
Chlor-een
Floor-een
Bro-meen
Astat-een
Io-dine
Ununseptium
Platinum, platinium?
Aluminum, aluminium?
+louis tournas I think it is platinum and aluminium. Or am I wrong?
Johannes Larsson
Yes, that is correct, but why not platinium.
I don't know. And I'm not supposed to know, right?
Thanks for making this video. I was waiting for good iodine extraction with explanation for a really long time. You gave chemical equations and explained what is actually happening. In my opinion that are the most important things to do when making chemistry videos. Keep doing them and good luck.
+Marko Lazarevic Thanks! It actually took quite a long time to figure out what was happening because there weren't many resources online to follow.
Another a7x fan watching nilered. Weird phenomenon that there's so many metalheads watching these videos haha.
Maybe nilered should learn how to extract the essence of metal from Jimmy sullivan's remains next :)
@@trevorwassink7234 haha, what a coincidence another a7x fan here :) he should try making a metal detector that detects metalheads
@@trevorwassink7234 i read this as "methheads" and it made so much sense lmao
@@trevorwassink7234 that's a good idea ngl
Yeah, I too thought Iodine sublimated, and wasn't ordinarily found as a liquid. until just now;
I don't really know if I was explicitly taught that, or had just drawn my own conclusions after watching its behaviour: it certainly *looks* like it sublimates from a distance.
Yes! Polymers!
+Jesse Downing They will be up in good time :)
WHY we dont dry the solution nnd then rise the temperater to vaporate ioden?
I first read that as Iodine-Provalone
That's when you specifically use iodized salt during the cheese-making process.
Let's make iodine pizza ;)
Mm, tasty iodine cheeses. Antibacterial AND delicious
@@BillAnt talk about clean eating :D
get that cheddar
Tried this, and instead of getting iodine, when I tried sublimating it, it let out yellow fumes, which smelled earthy and sulfury
The effect during filtering is happening because two very similiar liquids are combined and it is a very useful shortcut for comparing liquids without actually making an analysis. The film building between the two liquids happens at the atomic level and is caused by a sort of boiling one substance into another.
16:48 Best moment of this video --- looks like some violetish sky and hugeee Moon!
Randomroutine I was reading ur comment right at that part!! Beautiful
I know right!!!! ^_^
Getting iodine from tincture is MUCH better, its faster and yields are better. You can usually get around 1 gram for every 1 oz of tincture.
Take a shot for every time he says "with strong stirring"
Jason Fritz and "the solution is a little bit cloudy"
with strong stirring comes great responsibility
I wish I could, but I too drunk still from the “take a shot every time he forgets to put all of the chemicals in the intro”
I AM Drunk Coz of you, will take years for me to become sober
No
If you were to add a strong non-polar like Toluene you could simply wash the polymer off the water/NaI solution. No need for slow filtering and you have the added bonus of knowing that Toluene definitely got rid of all the polymer.
Also Iodine is very soluble in DCM and so it makes it a good solution to clean up your glassware after then you can simple evaporate the DCM off and recover your last tiny bit of I2.
I think making elemental iodine was one of the first experiments I did with a junior chemistry set: redox of potassium iodide with sodium hydrogen sulphate to make elemental (insoluble in water) iodine which can then be filtered out and used for a sublimation reaction...happy days
I love the smell of iodine in the morning.
Mitchell G Somethings telling me that you are synthesizing meth
I don’t think it smells
@@dannyboy12244 for some reason, it kinda tastes like chicken to me. mmm mmm lugols.
@@dannyboy12244 It smells. The vapors smell very strongly and I'm pretty sure they're corrosive too.
@@dannyboy12244 iodine smells like strong cleaner
I love how u always add humour into ur videos
+Zachary Lim I try :P
Nile i just want to say love the videos keep it up
Well, I guess you gotta make an iodine clock video now... lol
+Gabbos Ironfist I actually already have one :)
nature isn't perfect as many species aren't able to adapt fast enough to their surroundings so maybe altering certain traits in our DNA wouldn't be a terrible idea
"No, officer, not 'Meth'. Methyl Iodide, I swear!"
Lmao. Methyl is CH3.
@@lewisho8114 r/whooosh
@@user-hp7gj1gk1t Not totally off base though.
Hydriotic acid can be used quite efficiently to make meth, though if memory serves, the synth to make it and the synth to make meth are close enough that there is no point to making hydriotic acid, and it's purchase is as controlled as is methamphetamine.
@@Zomby_Woof actually, both can be catalyzed by red phosphorus.
Methyl iodide is used to make methamphetamine tho, so you’re not far off. That’s the entire reason phosphorous is used to make meth too. It’s used to make methyl iodide by first producing phosphorous triiodide
The time your videos are shown in college :) I start screaming Nile Red
Just keep up your good content,20% Learnt through books and rest 80% via Nile red videos Kudos
Thank you Nilered, for helping me with my science projects in school. :)
6:26 I use extracted peppermint spirits to treat my stomach problems and sometimes when I squirt the liquid into a cup of water beads of the peppermints. Roll across the top in exactly the same way
i learn new things every time i watch your videos gj keep it up
I have seen liquid iodine when I was a kid back in 1991 or so. I had produced some iodine accidentally. We didn't have the web to look stuff up. I recognized it as being iodine. I placed the dark stuff into a test tube and heated it. There was a lot of violet vapors. When I tilted it, to my shock, some black liquid flowed. Luckily, I had a stopper on the test tube.
you can also make iodine from potassium iodide, hydrogen peroxide, water, and muriatic acid. it's a lot easier and inexpensive. you can use coffee filters to strain it as well
Something about this comment screams breaking badly lol
Ironically hydroiodic acid can be used to easily make meth.
If you live near a nuclear power plant, you can usually order free potassium iodide tablets
The effect on the draining solution through the coffee filter is caused by the 2 liquids having slightly different surface tensions in my opinion
That’s amazing! The color change was awesome!
Years ago when I did more experimenting I noticed the iodine melt when I heated it and I thought it was because it was impure. Solid iodine is fairly volatile. If you leave out in the air very long you will lose a lot of it it to evaporation.
You need to insulate around the beaker with foil to keep the walls hot so all the iodine sublimes onto the flask. You should use ice water in the flask.
Practical chemistry!
Your videos are very interesting and your explanations very clear congratulations and thank you very much for shearing with us your big chemical knowledge
keep up the great work!
So I tried putting in just solid NaOH and it made some crazy red almost crystal looking chunks
Adding more water and an actual solution plus heating seems to dissolve them though
Based on just observation, I would say it's a solubility issue as to why the water "bubbles" like that, I noticed it at my old job when water from the tap would drip into a wash basin that used to have soapy water in it
NileRed, the reason for that weird effect is quite simple...there are probably some monomers left over from the povidone hydrolysis and possibly even some surfactant in the original povidone solution, so what you have got there is some modification of the surface tension dynamics going on....
Excellent video, looking forward to the methyl iodide video. Thanks for your time. Hopefully I will be able to afford to support you sooner rather than later.
for cleaning my iodine at the end, i used ascorbic acid and ethanol solution, ethanol will dissolve the iodine, and the ascorbic acid is still soluble in alcohol but also reduces the iodine. just an alternate method
Would be cool to make the components for testing for elements in sea water. Like a DIY strontium or calcium test kits.
Great video as always! But when will you be finishied editing the acid on skin video??
Nice video.i plan on trying this.thanku.
I love your sense of humour xD
I started this video from autoplay and I was like “what is this? A nilered clone? He talks just like him and has the same style, but he isn’t quite as good, and his voice is different”. Then i checked and realized it is just an old nilered video. He has come a long way.
If you let the solution sit for a few days, the povidone polymer sinks to the bottom. It makes filtering so much easier
Looks like a flame-in-a-bottle, really cool! :D
Quite a few pretty reactions in this video, makes me wanna try this procedure.
Nike red must be a star... since he's making elements.
the hydrochloric acid container at 1:53 looks really cool
If you use ice water you can get a better recode station of iodine on the bottom of the round flask.
thanks. very edumacational.
Hey, never noticed that, Iodine is the only halogen one where you pronounce the "ein" instead of the other, similarly spelled, "eens". What a fun language!
Residual elemental iodine remaining in solution can be extracted by adding petroleum ether and shaking in a sep funnel. The iodine will preferentially dissolve in the solvent and can be evaporated to obtain crystals.
You might try to extract iodine from the residue with CH2Cl2. Also, I'd be willing to bet that you can drop all the povidone residue by sequestering it in a bisulfite adduct.
Fluorine, Chlorine and Bromine. They all have the same Pronunciation under the Halogen Family.
It's based on how you pronounce Eye-o-dene
I was curious about this. Thanks!
I believe it is the vapour pressure that caused the iodine to condense. You put the flask to prevent iodine vapour from escaping the beaker. The vapour has no where to go and slowly builds up in the beaker, causing the pressure to increase, allowing the iodine to exhibit the liquid phase.
Jataro Kemuri But the beaker has an open spout on the side. Even without a spout for pouring, a flask on top of a beaker wouldn't have a good enough seal to make a good pressure vessel.
9:05 fail x)
Almost perfect cut, but not good enough. We can see your mistakes NileRed!
Well then can you do better than him?
@@evanng3271
I can do it, yes I can
'cause I am a jewish American!
Wow. the comment section is particularly poor today...
Niles, I don't know about anyone else, but I am indeed astounded by your liquid, non-sublimating iodine. Sublimating iodine was my very favorite experiment in high school honor's chem. I do not remember the details of it, but it was under a hot plate, and it did not liquify against the beaker walls as yours did. I want to know more!
Do you by chance have any sources about this situation? anything that explains things further? (I'm happy to do my own research, I'm just wondering if you already did some legwork on your own.)
Looks beautiful ngl
I would highly advice not to use gravity filtration once you have the elemental iodine.
It can easily oxidise your paper and its going to rip (the same does apply to KMnO4).
Use glass fiber filter paper dude, no worries!
Just got done labeling all my glassware when I came across this video and saw your Erlenmeyer flask labeled Ibex. I definitely should have labeled mine as different species of goats instead of by letter. Missed opportunity. XD
Man you get to do some cool stuff I must say.
Would you be interested in making a visually appealing oscillating reaction? I remember this from a lab although I don't remember the reagents involved. I simply remember that it would shift from blue to gold to clear, and repeat.
He did it.
I saw it on you tube shorts the other day.
We use the sodium thiosulphate / KI / starch method to titrate for Cu concentration in an electroless plating bath in industry.
I use potassium metabisulfite instead of thiosulfate but it is the same line of thinking. It reduces iodine to iodide ion. Another, more rare compound that can do this, is hyponitrite.
I remember iodine can be extracted from some seaweed-like things. Forgot about details, only remember heating them and producing tons of smoke. Can we have a video for that someday?
The decrease in solubility of the povidone is going to be due to the fact you no longer have it as a salt after stealing the iodine from it, also I suppose it could possibly even cross link a bit, but not extensively considering sterics don't look particularly favourable, and excess base would probably attack that ketone more readily if any of that is going on. The fact that it's soluble to start means the chain length cant be particularly long even if it is as the salt, despite the oxygens there's enough aliphatic stuff going on to make it want to precipitate without many repeat units, probably even with only one of each. So yea, it's probably entirely because its no longer as the iodide.
The liquid iodine looks so cool
I LOVE LEAN💜💜💜💜
Why was this at the top
Your videos give me so much knowledge and more a visual aid to learn and better understand , thankyou NileRed
.jusjak
+JUS JAK No problem!
the bubbling effect is from high surface tension caused by the remains of the polymer.
Crystal question: if you leave a seed crystal or several maybe, wouldn't that encourage the future iodine gas to start crystalization on those seed points? That would make harvesting much easier, and you would end up with some wicked large and cool iodine crystals. Is this viable?
9:07 I saw that excess polymer drop back in, close cut but I GOT YA, hah anyways damn good stuff, I love this
Hey Nile, I've been hanging around on your channel for quite a while now, i was wondering if you could spoint me in the direction of where you got the hotplate stirrer combination. The 9nes on amazon are expensive and dont have magnetic stirrers.
Great video! Cleaning my mercury.
Just realized you have something similar to NurdRage.
You both are chemists, and your initials are NR.
you could 'ave sumink there sherock?
I think I remember there being a lot of hints that nurdrage is based in Germany.
What pharmacy chemist's? . il take 2 oounces of your finest turkish papaver, & 10 grains of diaphine my good man!
Yes and they're both Canadian, also.
It doesn't sublimate. It sublimes.
Thank you! 🙂
if you add the NAOH in a saturated solution dropwise the povidone precipitates as an immiscible oil. I found it easier to clean.
I used to have some iodine for an elements collection. Then one day I went to look at it, and it was gone. Vanished. My jar apparently wasn't quite airtight.
The clock reaction - that has to do with bivalent/covalent bonds I think.
Trying to remember my HS chem from 45 years ago.
Povidone iodine is expensive where I live. I use it to make water safe to drink in the bush. I think it's hard to get anything in higher concentrations. You know why.
I would love to see you produce your own sodium hydroxide using the Chlor-Alkoli process. I would be interested to see how you trap the chlorine and what you choose for a membrane.
I am honestly not a huge fan of electrolysis for some reason, so I am not sure Ill ever do it :(. I might eventually do it though, in the future. The likelihood is low though
+NileRed I appreciate your honesty.
It would be awesome!! I read about using UV to react hydrogen & chlorine, I'm not sure it can work though..
flailios it is fairly simple. I just got 2 40mm T pieces of PVC pipe and ran a smaller pipe between the two pieces, and capped off the ends of both T pieces. After that, I just rammed in 2 tissues as the membrane and they worked fine. I actually currently have it going now, and it's interesting to see the murky solution on the right (my carbon electrode eroded, I don't care all too much, as they're super cheap) and the clear solution on the left. A smell of bleach / chlorine is also really prevalent on the right, but not on the left (I should mention my anode is on the left).
I'm doing this to obtain sodium hydroxide which I will then mix with magnesium powder and burn, which gives the product of sodium metal and magnesium hydroxide. Mg + NaOH -> Na + MgOH, a simple displacement.
epicsilverprince it certainly is a simple process. I just wanted to watch Nile do it :-)
You sounded really happy when you said "coffee filters". :)
6:18 your experiencing anti-bubbles my friend
Rewatching this video, it makes me wonder if the acid addition phase would benefit from being conducted in a more controlled manner such as adding the acid dropwise using a buret.
Your videos make me want to get in to this chemistry stuff, but sounds like it’s vary costly. Can you recommend any kind of starter kit? Thanks
Start with this one!
Povidone solution $7
Hydrochloric (they cal it muriatic) acid at ACE hardware $5 for a quart of 32 and some odd percent (that will last a long time)
sodium hydroxide, also at ACE, a pound for $3
Hydrogen peroxide walmart/anywhere $0.50 to $1.00
coffee filters, mason jars,and glass rods (amazon. They are dirt cheap)
You ca also buy some 'professional' glassware on amazon or ebay. It's a lot cheaper than you would think.
13:56 lookslike tea
I miss the good old days when tincture solution was more easy to get than povidone.
Cool variation of the clock the process is definitely not a economic solution for obtaining elemental iodine that's for sure but if that's what you have to work with it works thanks for the lesson
At 6:05 it seems the surface tension of the upper layer of the water is higher thant the washing dropplets, causing them not to unite immediately with the water.
About which compound was responsible for that, I don't know, but my guess would be the leftovers of the polymer.
+Nile Red any ideas on storage of iodine? I keep my iodine stored under water inside a glass vial with plastic lid. But the iodine turns the lids brown and brittle and after some days all of it escapes. it'll be great if you could share some ideas on how to store iodine for element collection purposes
LOL ! same thing happened to me with the sodium thiosulphate. I looked away for a second and my waste jug turn brown again, so I added more thiosulphate and the same thing happened clear then brown in 15 seconds or so. It was about that time I noticed a bottle of H2O2 on my work bench, which made me feel like kind of a noob for not expecting this
Would putting the initial sodium iodide solution with the povidone goop into a fridge or a freezer (without letting it get cold enough to freeze the water) cause the povidone to solidify enough for it to be removed for the most part without filtering?
6:05
i may be wrong but that may be some variation of the leidenfrost effect, but instead of steam its water vapor.
???
@@nekomimicatears Yeah idk what i was talking about ngl
Hey nile. Can you please bring back the future videos and videos being edited list?
Is there a manual for these experiments. How and where do you get these info and the processes to experiment with
Here in italy we have a similar tincture but made of iodine and similar compounds. So that mixture reqiire only HCl and H2O2 for extraction. This forms pretty pure crystals that can be purified by a simple filtration in a buchner. The yeld is super high. The sublimation process isn't proper for good yelds but is the mode fo obtain suoer pure iodine.
qua in italia si può comprare direttamente lo iodio.
Iodine all ways crystallizes more on the sides of the flask then on the ice filled flask sitting on top. A classmate of mine live 5 min away and iodine crystallizes the opposite way for him. Crazy iodine has a mind of its own.
When you added the NaOH the bottom of the beaker looked like the flames of hell
Hi Nile, I can never understand if the concentration is expressed in volume or weight. In this case, is this 10% in volume or weight?
In this case, it is 10% in volume ;)
Tyt0uOff are you sure? I was told that when the concentration is expressed in percentage and is not specified if it is in mass or in volume this means that it is in mass. And iodine and povidone are both solids when not in solution. The concentration in volume is used when you mix two fluids. But i can be wrong. Pls explain me
Hello NileRed I was wondering what would be the purity percentage of the Iodine in the end.