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.
+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.
+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?
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.
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 :)
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.
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
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
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
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.
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.
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 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.
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).
@@ΑντώνηςΒαμβακούσης 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.
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
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!
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.
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
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....
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
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.
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.
When you distill the iodine, put the beaker in hot water up to its rim (put an inert weight in to keep it from floating) and put ice water in the flask on top. ALL the iodine will distill to the flask in one go, and none will be left on the beaker. If you are below 100C, the iodine will be truly be subliming. both from the beaker, and to the bottom of the flask.
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 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
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.
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
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.
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
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 -
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.
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.
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 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.
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
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
Or you can just distill the povidone-iodine solution and all the povidone will remain in the boiling flask. Crystals of iodine will form in the condenser and some will flush down to the receiving flask along with water.
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?
Hmm, have a video on how to get iodine from povidone solution, a video about phosphorus (including red), one about the birch reduction,....hmmmm ...don't you hate it when people equate an interest in chemistry to drugs? And bombs. It's always drugs and bombs.
Had fire marshals come into a new facility I'm putting together, because a guy from the city had to verify our new AC units permits. Saw a small shear mixer being cleaned in a bucket of water. Called the city saying I was "cooking something up down there" without a permit. They took that as "guy is making bombs or drugs". Ignorance is a crazy thing.
It's a damn shame, the association completely ruined hobby chemistry. Sometimes I wish this was still the 1950s and people looked upon hobby chemistry without suspicion, but instead with great respect.
Hello fellow chemists! I'm kinda late but I hope my comment can still serve someone who happens to read it! If you are interested in advanced chemistry and processes that may get you blacklisted if you look them up on Google (most of the time you won't even find them but you get blacklisted anyway); may I suggest The Merck Index. It's an expensive book but a must for the home chemistry enthusiast who doesn't want the FBI breathing down their urethra.
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.
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.)
So technically the rule of iodine stands true as when you up the colder surface as a block it creates a pressure greater than the standing pressure equal to that of the outside of the glass. The receptacle you used is deep enough for a difference of pressure being pushed (yada yada thermodynamics) so in a sense not wrong but natural iodine crystal are usually found in high concentration and extremely dense layers that provide a high pressure atmosphere rather than surface pressure.
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
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
what you are thought about iodine is not wrong ,because you seal off the vessel while heating it ,you have change the pressure inside the vessel ,so it is not liquid at room pressure
Maybe the weird effect from the water hitting the solution in the beaker was due to the higher surface tension of the solution and some sort of mixing/diluting effect happening between the different liquids? I honestly have no idea and leave that to better minds than mine lol.
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.
That's how organic and inorganic chemistry should be taught along with equations but sadly most contries education system uses only textbooks which can be extremely boring and this made difficult most of students' to get real essence of science.
Dude, use potassium iodide. Very simple to do, great yeild. The recrystalization will have huge crystals on the ice cold flask. Getting iodine from povidone or betadine is awaste of time.
Nile Red I buy potassium iodide directly. Buying crystaline iodine will get you a visit from the government in my world. Used to buy it at the camping store 10 years ago.
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?
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 😑
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
"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.
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
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?
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?
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.
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
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
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
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!!!! ^_^
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.
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.
Tried this, and instead of getting iodine, when I tried sublimating it, it let out yellow fumes, which smelled earthy and sulfury
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
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 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!
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 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!
"No, officer, not 'Meth'. Methyl Iodide, I swear!"
Lmao. Methyl is CH3.
@@lewisho8114 r/whooosh
@@ΑντώνηςΒαμβακούσης 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
Thank you Nilered, for helping me with my science projects in school. :)
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!
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.
I love how u always add humour into ur videos
+Zachary Lim I try :P
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
If you let the solution sit for a few days, the povidone polymer sinks to the bottom. It makes filtering so much easier
If you use ice water you can get a better recode station of iodine on the bottom of the round flask.
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....
Y'all remember burning magnesium in school and almost burning off your retinas
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
the hydrochloric acid container at 1:53 looks really cool
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.
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.
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!
The effect on the draining solution through the coffee filter is caused by the 2 liquids having slightly different surface tensions in my opinion
Im a producer but i swear watching these lab videos are calming as hell
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.
Nike red must be a star... since he's making elements.
Ice in the round bottom solve your "no crystals" issue ;)
13:56 lookslike tea
When you distill the iodine, put the beaker in hot water up to its rim (put an inert weight in to keep it from floating) and put ice water in the flask on top. ALL the iodine will distill to the flask in one go, and none will be left on the beaker. If you are below 100C, the iodine will be truly be subliming. both from the beaker, and to the bottom of the flask.
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
the bubbling effect is from high surface tension caused by the remains of the polymer.
4:55 The forbidden lemonade
It doesn't sublimate. It sublimes.
Thank you! 🙂
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 :-)
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
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.
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
Would be cool to make the components for testing for elements in sea water. Like a DIY strontium or calcium test kits.
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 -
Things you should never say when doing chemistry : " It's more to my taste " ; that is all.
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.
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.
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.
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
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 miss the good old days when tincture solution was more easy to get than povidone.
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
6:18 your experiencing anti-bubbles my friend
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
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
Or you can just distill the povidone-iodine solution and all the povidone will remain in the boiling flask.
Crystals of iodine will form in the condenser and some will flush down to the receiving flask along with water.
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?
We use the sodium thiosulphate / KI / starch method to titrate for Cu concentration in an electroless plating bath in industry.
Hmm, have a video on how to get iodine from povidone solution, a video about phosphorus (including red), one about the birch reduction,....hmmmm
...don't you hate it when people equate an interest in chemistry to drugs? And bombs. It's always drugs and bombs.
Yep! Fucking ridiculous
Building Atmosphere neural efficiency stability euphoria extacy reports blowing life into form
Had fire marshals come into a new facility I'm putting together, because a guy from the city had to verify our new AC units permits. Saw a small shear mixer being cleaned in a bucket of water. Called the city saying I was "cooking something up down there" without a permit. They took that as "guy is making bombs or drugs". Ignorance is a crazy thing.
It's a damn shame, the association completely ruined hobby chemistry. Sometimes I wish this was still the 1950s and people looked upon hobby chemistry without suspicion, but instead with great respect.
Hello fellow chemists! I'm kinda late but I hope my comment can still serve someone who happens to read it! If you are interested in advanced chemistry and processes that may get you blacklisted if you look them up on Google (most of the time you won't even find them but you get blacklisted anyway); may I suggest The Merck Index. It's an expensive book but a must for the home chemistry enthusiast who doesn't want the FBI breathing down their urethra.
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.
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.)
So technically the rule of iodine stands true as when you up the colder surface as a block it creates a pressure greater than the standing pressure equal to that of the outside of the glass. The receptacle you used is deep enough for a difference of pressure being pushed (yada yada thermodynamics) so in a sense not wrong but natural iodine crystal are usually found in high concentration and extremely dense layers that provide a high pressure atmosphere rather than surface pressure.
The liquid iodine looks so cool
this guy fr why im passing science
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
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
You sounded really happy when you said "coffee filters". :)
That’s amazing! The color change was awesome!
what you are thought about iodine is not wrong ,because you seal off the vessel while heating it ,you have change the pressure inside the vessel ,so it is not liquid at room pressure
Maybe the weird effect from the water hitting the solution in the beaker was due to the higher surface tension of the solution and some sort of mixing/diluting effect happening between the different liquids?
I honestly have no idea and leave that to better minds than mine lol.
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.
Im addicted with this smartass and i don't know why.
I just gained a third brain cell
I LOVE LEAN💜💜💜💜
Why was this at the top
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.
When you added the NaOH the bottom of the beaker looked like the flames of hell
That's how organic and inorganic chemistry should be taught along with equations but sadly most contries education system uses only textbooks which can be extremely boring and this made difficult most of students' to get real essence of science.
You can get better crystals by using ice cold water in the flask and heatgun the walls of the beaker
Please dont tell me im not the only one whos watching nile's videos without understanding anything...
you changed your pronunciation of iodine
krap101 many times he fluctuates
It's crucial for the chemistry to work properly
He corrected it.
I noticed he calls it elemental iod-een and sodium iod-ine
Nile i just want to say love the videos keep it up
Please show a video on how to clean Potassium metal.
Dude, use potassium iodide. Very simple to do, great yeild. The recrystalization will have huge crystals on the ice cold flask. Getting iodine from povidone or betadine is awaste of time.
+SMOBY44 It is for people who can't get it any other way. I personally just buy the iodine directly...
Nile Red I buy potassium iodide directly. Buying crystaline iodine will get you a visit from the government in my world. Used to buy it at the camping store 10 years ago.
...but on the watch glass placed above, the iodine passes from vapor state to solid state. THAT is also sublimation!
Man you get to do some cool stuff I must say.
I like how you change your pronunciation of iodine throughout the video
if you add the NAOH in a saturated solution dropwise the povidone precipitates as an immiscible oil. I found it easier to clean.
This video will probably get everyone put on a DEA watchlist XD
9:07 I saw that excess polymer drop back in, close cut but I GOT YA, hah anyways damn good stuff, I love this
I saw purple iodine vapour during the hydrochloric acid addition.