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Making iodine

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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.

Опубликовано:

3 фев 2016

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Комментарии : 846

@IbakonFerba 7 лет назад

I LOVE the color of Iodine gas, it's the most beautiful purple I know

@industrialadhesive6357 4 года назад

That about TACN

@industrialadhesive6357 4 года назад

The copper salt not the other one

@noname-codm4590 4 года назад

Can i make nitrogen triiodide with methyl iodide?

@oblonggator84 3 года назад

I wonder what the light graph thingy for it looks like (spectrograph? Maybe?)

@macleanmarsh 3 года назад

Brought to you by HBOMAX, which has the same purple and just gave me an ad for it. Hurray 😑

@BadReligi0nFan69 5 лет назад

"It only took 30 seconds and you can see my crappy creation", you sound like my father.

@radioactive.redwood 4 года назад

Oof

@adityakatke4191 3 года назад

Ooo self burn those are rare.

@dakotareid1566 3 года назад

@@adityakatke4191 😂😂 love that show

@loganiushere 3 года назад

I won't ruin 420 likes. Oof

@BadReligi0nFan69 3 года назад

@@loganiushere ahh yiss, a man of culture, I see.

@TheBookDoctor 8 лет назад

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.

@NileRed 8 лет назад

+LateNightHacks That's actually really cool. I had no idea.

@Dev961000 8 лет назад

+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.

@AuraRisen 8 лет назад

+LateNightHacks Thanks!

@chrisorlim 8 лет назад

+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.

@LateNightHacks 8 лет назад

+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?

@oderstein9368 4 года назад

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

@imaginarytree 3 года назад

same HAHA

@MadScientist267 2 года назад

Main thing is it's not eye-o-deen lol

@trashtech3397 2 года назад

Fffffff

@kvarner6886 2 года назад

Oh my god, me too.

@Usnveteranstacker 5 месяцев назад

Ya, I remember being uneducated and not knowing a thing he was talking about. It was right now

@HyperionNyx 8 лет назад

Chlor-een Floor-een Bro-meen Astat-een Io-dine

@bluechem5479 8 лет назад

Ununseptium

@louistournas120 8 лет назад

Platinum, platinium? Aluminum, aluminium?

@johanneslarsson5183 8 лет назад

+louis tournas I think it is platinum and aluminium. Or am I wrong?

@louistournas120 8 лет назад

Johannes Larsson Yes, that is correct, but why not platinium.

@johanneslarsson5183 8 лет назад

I don't know. And I'm not supposed to know, right?

@markolazarevic4209 8 лет назад

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.

@NileRed 8 лет назад

+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.

@trevorwassink7234 3 года назад

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 :)

@mucodevries2955 3 года назад

@@trevorwassink7234 haha, what a coincidence another a7x fan here :) he should try making a metal detector that detects metalheads

@hboyO2 3 года назад

@@trevorwassink7234 i read this as "methheads" and it made so much sense lmao

@Afterl7fe 2 года назад

@@trevorwassink7234 that's a good idea ngl

@wood0366 7 лет назад

I first read that as Iodine-Provalone

@U014B 6 лет назад

That's when you specifically use iodized salt during the cheese-making process.

@BillAnt 5 лет назад

Let's make iodine pizza ;)

@Xenakeyblademaster 3 года назад

Mm, tasty iodine cheeses. Antibacterial AND delicious

@Howtoeatrocks 2 года назад

@@BillAnt talk about clean eating :D

@deadboiraids 2 года назад

get that cheddar

@NevinWilliams71 8 лет назад

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.

@jebug29 8 лет назад

Yes! Polymers!

@NileRed 8 лет назад

+Jesse Downing They will be up in good time :)

@user-pc9hf7gc5i Год назад

WHY we dont dry the solution nnd then rise the temperater to vaporate ioden?

@oldgoodrandomroutine 8 лет назад

16:48 Best moment of this video --- looks like some violetish sky and hugeee Moon!

@shelleyrubalcava9784 7 лет назад

Randomroutine I was reading ur comment right at that part!! Beautiful

@oldgoodrandomroutine 7 лет назад

I know right!!!! ^_^

@Nebelwerfer210cm 7 лет назад

Take a shot for every time he says "with strong stirring"

@pietrotettamanti7239 7 лет назад

Jason Fritz and "the solution is a little bit cloudy"

@TheFlipside 5 лет назад

with strong stirring comes great responsibility

@caseysarakaitis3282 4 года назад

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”

@siddharthdhanasekarmorning8915 3 года назад

I AM Drunk Coz of you, will take years for me to become sober

@tyrlant2189 3 года назад

@y2ksw1 8 лет назад

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.

@kieranodea771 5 лет назад

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.

@EdwardTriesToScience 3 года назад

Tried this, and instead of getting iodine, when I tried sublimating it, it let out yellow fumes, which smelled earthy and sulfury

@tenebignisgames4926 4 года назад

"No, officer, not 'Meth'. Methyl Iodide, I swear!"

@lewisho8114 4 года назад

Lmao. Methyl is CH3.

@user-hp7gj1gk1t 4 года назад

@@lewisho8114 r/whooosh

@Zomby_Woof 4 года назад

@@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.

@loganclementi8947 4 года назад

@@Zomby_Woof actually, both can be catalyzed by red phosphorus.

@spiderdude2099 3 года назад

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

@clarsach29 2 года назад

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

@goodfeller2 8 лет назад

I love the smell of iodine in the morning.

@henryjiang9664 6 лет назад

Mitchell G Somethings telling me that you are synthesizing meth

@dannyboy12244 4 года назад

I don’t think it smells

@allseeingeyezz 4 года назад

@@dannyboy12244 for some reason, it kinda tastes like chicken to me. mmm mmm lugols.

@Andrew-my1cp 4 года назад

@@dannyboy12244 It smells. The vapors smell very strongly and I'm pretty sure they're corrosive too.

@lithiumscience6861 3 года назад

@@dannyboy12244 iodine smells like strong cleaner

@Gabbos 8 лет назад

Well, I guess you gotta make an iodine clock video now... lol

@NileRed 8 лет назад

+Gabbos Ironfist I actually already have one :)

@mentalbarber 8 лет назад

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

@gearknuckles4723 8 лет назад

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

@1fast72nova Год назад

Something about this comment screams breaking badly lol

@TheXenProject 8 месяцев назад

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

@moocowwolf 8 лет назад

Nile i just want to say love the videos keep it up

@officialrockitcitymusic6880 8 лет назад

i learn new things every time i watch your videos gj keep it up

@a3xccy379 8 лет назад

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

@ernestoterrazas3480 7 лет назад

Your videos are very interesting and your explanations very clear congratulations and thank you very much for shearing with us your big chemical knowledge

@shad0ex 8 лет назад

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.

@louistournas120 3 года назад

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.

@ballisticbonzai 8 лет назад

I love how u always add humour into ur videos

@NileRed 8 лет назад

+Zachary Lim I try :P

@d3athreaper100 4 года назад

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

@romancuzyes3464 3 года назад

Thank you Nilered, for helping me with my science projects in school. :)

@bpark10001 4 года назад

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.

@WildRapier Год назад

Practical chemistry!

@EarthPoweredHippie 4 года назад

The effect on the draining solution through the coffee filter is caused by the 2 liquids having slightly different surface tensions in my opinion

@InDmand 8 лет назад

Quite a few pretty reactions in this video, makes me wanna try this procedure.

@williamjones8449 3 года назад

Would be cool to make the components for testing for elements in sea water. Like a DIY strontium or calcium test kits.

@stevetobias4890 3 года назад

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.

@laxplaya5602 8 лет назад

keep up the great work!

@karlbergen6826 5 лет назад

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.

@BeastM140i 3 года назад

If you let the solution sit for a few days, the povidone polymer sinks to the bottom. It makes filtering so much easier

@SoapMcCallister 2 года назад

Fluorine, Chlorine and Bromine. They all have the same Pronunciation under the Halogen Family. It's based on how you pronounce Eye-o-dene

@thomasfallanca3220 2 года назад

I was curious about this. Thanks!

@firedragon159 2 года назад

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!

@seagie382 3 года назад

the hydrochloric acid container at 1:53 looks really cool

@generalingwer4341 Год назад

Nice video.i plan on trying this.thanku.

@psycronizer 7 лет назад

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....

@BlueMCer 5 лет назад

Looks like a flame-in-a-bottle, really cool! :D

@garfieldcouch4443 2 года назад

Nike red must be a star... since he's making elements.

@irvingkurlinski 8 лет назад

If you use ice water you can get a better recode station of iodine on the bottom of the round flask.

@Spycyzygy 8 лет назад

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

@robolor3815 3 года назад

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

@Dziaji 2 года назад

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.

@MathIguess 4 года назад

I love your sense of humour xD

@NigelHaarstad 2 года назад

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

@anonymoususer3293 3 года назад

It doesn't sublimate. It sublimes.

@allenclabo4319 Год назад

Thank you! 🙂

@gummel82 8 лет назад

Great video as always! But when will you be finishied editing the acid on skin video??

@dracoargus915 2 года назад

Looks beautiful ngl

@alternative_piccolo3130 3 года назад

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

@dinmorsamushimushi Год назад

That’s amazing! The color change was awesome!

@victorycoffee92 3 года назад

You sounded really happy when you said "coffee filters". :)

@shaalplayz2456 2 года назад

13:56 lookslike tea

@JUSJAK 8 лет назад

Your videos give me so much knowledge and more a visual aid to learn and better understand , thankyou NileRed .jusjak

@NileRed 8 лет назад

+JUS JAK No problem!

@Lee90000 6 лет назад

thanks. very edumacational.

@atari7001 8 лет назад

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.

@Derpysaur 5 лет назад

6:18 your experiencing anti-bubbles my friend

@benearhart1224 3 года назад

the bubbling effect is from high surface tension caused by the remains of the polymer.

@ericwolf1782 2 года назад

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

@zettozero7865 8 лет назад

Just realized you have something similar to NurdRage. You both are chemists, and your initials are NR.

@markbritton6798 3 года назад

you could 'ave sumink there sherock?

@jenbadabam8801 3 года назад

I think I remember there being a lot of hints that nurdrage is based in Germany.

@markbritton6798 3 года назад

What pharmacy chemist's? . il take 2 oounces of your finest turkish papaver, & 10 grains of diaphine my good man!

@linkmcintosh2244 2 года назад

Yes and they're both Canadian, also.

@kilowhiskyforge4337 3 года назад

9:07 I saw that excess polymer drop back in, close cut but I GOT YA, hah anyways damn good stuff, I love this

@frankroberts9320 4 года назад

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.

@xXCrazyxNoobxX 8 лет назад

9:05 fail x)

@mg42sd 5 лет назад

Almost perfect cut, but not good enough. We can see your mistakes NileRed!

@evanng3271 5 лет назад

Well then can you do better than him?

@mg42sd 5 лет назад

@@evanng3271 I can do it, yes I can 'cause I am a jewish American!

@grzegorzbrzeczyszczykiewic8158 2 года назад

The liquid iodine looks so cool

@grunthostheflatulent269 8 лет назад

We use the sodium thiosulphate / KI / starch method to titrate for Cu concentration in an electroless plating bath in industry.

@captinccat7766 8 лет назад

Amazing video as always I would like to see the acid on hand, or the Mercury cleaning And a future video I would like Nonviamide Again thanks for the videos, and stay safe

@jatarokemuri4549 7 лет назад

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.

@Kirbyofdeath 7 лет назад

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.

@prajwol_poudel 5 лет назад

I miss the good old days when tincture solution was more easy to get than povidone.

@josephvanas6352 3 года назад

4:55 The forbidden lemonade

@arandomperson5026 3 года назад

Y'all remember burning magnesium in school and almost burning off your retinas

@Arcelux 2 года назад

Things you should never say when doing chemistry : " It's more to my taste " ; that is all.

@NavyField123 8 лет назад

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).

@WildRapier Год назад

Use glass fiber filter paper dude, no worries!

@bromisovalum8417 3 года назад

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.

@Danstrber 2 года назад

I LOVE LEAN💜💜💜💜

@PerkaholicFB 4 месяца назад

Why was this at the top

@flailios 8 лет назад

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.

@NileRed 8 лет назад

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

@flailios 8 лет назад

+NileRed I appreciate your honesty.

@blueknight3221 7 лет назад

It would be awesome!! I read about using UV to react hydrogen & chlorine, I'm not sure it can work though..

@recessiv3 7 лет назад

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.

@flailios 7 лет назад

epicsilverprince it certainly is a simple process. I just wanted to watch Nile do it :-)

@Zomby_Woof 4 года назад

The clock reaction - that has to do with bivalent/covalent bonds I think. Trying to remember my HS chem from 45 years ago.

@kieranodea771 5 лет назад

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.

@thejll 4 года назад

The ‘floating droplet’ effect does tend to be seen more readily in low surface tension situations. Thin layer of air takes time to seep out. Electric fields affect the phenomenon.

@jaydenostrovsky8096 2 года назад

I just gained a third brain cell

@Silverarmydogs 8 лет назад

Great video! Cleaning my mercury.

@Druicidal 6 лет назад

if you add the NAOH in a saturated solution dropwise the povidone precipitates as an immiscible oil. I found it easier to clean.

@woof0073 2 года назад

Im addicted with this smartass and i don't know why.

@shadowtheimpure 3 года назад

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.

@michaeltodd7302 3 года назад

Man you get to do some cool stuff I must say.

@allenclabo4319 Год назад

Most of the time, I2 is sublimed (not "sublimated") at a much lower temperature - there is sufficient vapor pressure above the solid at 40-60C to sublime it onto a cold surface quite successfully - so those of us that generate and use I2 vapor aren't ever melting the solid - you aren't wrong for an isolated, one-component system, and the rest of us haven't been wrong in an open, multi-component system - and if you put ice in the round bottom flask, you will get most of the I2 subliming onto the flask instead of the beaker and will get much nicer crystals, too - not criticism, just hopefully helpful comments -

@torojoeman 8 лет назад

When you added the NaOH the bottom of the beaker looked like the flames of hell

@DavidGao 8 лет назад

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?

@EnslavedComedyStahl 3 года назад

I just realized that every video of him extracting an element is for making something else which can be used for future test. EVERYTHING IS CONNECTED.

@DAN8137 8 лет назад

8:25 my favorite part of the video :D

@sinbindinchin 7 лет назад

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.

@apostle333 6 лет назад

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.

@floorskin1 Год назад

He did it. I saw it on you tube shorts the other day.

@MadScientist267 2 года назад

Ice in the round bottom solve your "no crystals" issue ;)

@kieranodea771 6 лет назад

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

@cloudstrife6435 2 года назад

It's awesome how you made a 21 minute video on extracting iodine but Explosions and Fire did it in less than 10 seconds lol

@Xaelum 8 лет назад

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.

@unknownperson6838 5 месяцев назад

You can get better crystals by using ice cold water in the flask and heatgun the walls of the beaker

@vylbird8014 6 лет назад

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.