Nitrogen Triiodide (touch powder) - Periodic Table of Videos
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- เผยแพร่เมื่อ 21 ม.ค. 2025
- Warning, this is a hazardous compound. Extra footage at: • Nitrogen Triiodide (ex...
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Featuring Professor Sir Martyn Poliakoff, with Neil Barnes and Sam Tang working in the lab.
Michael Faraday (Objectivity): • The Making of Michael ...
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From the School of Chemistry at The University of Nottingham: bit.ly/NottChem
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Music by Alan Stewart
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Periodic Videos i had another idea, microphones convert sound into electrical energy by magnetic induction and bees make noise in a hive 🐝 +🎤’s = 🤔🤷♂️
Nice Video! Can the professor some nice synthesis for example Acetyl salicylic acid or other nice stuff?
Has anybody ever made Nitrogen Trifluoride?
Don't you dare to harm Lego again.
@PeriodicVideos is human ejaculate a viable option for sunscreen? It is non-poplar, contains Zinc oxides, full of organic compounds and is a yellowish white which means that it will reflect heat and absorbs every colour but white
Loved the professor on a stick compared with the Prof
Aww, he dropped one of his conical flasks, poor guy.
And the slow-motion of his arm coming off
One of my friends experimented with touch powder once. And one of the things they did was they got one of their friends who had some uranium glass marbles, and they tried rolling those marbles down a track past a dried sample of the touch powder. The powder exploded only when the uranium marbles rolled past, indicating to them that even alpha particles (which are the primary decay particles ejected by uranium) have enough energy to set off even a relatively large sample of touch powder.
Calyo Delphi thats pretty cool. What sort of velocities do the helium nuclei come out at with alpha radiation?
Also, did you try it with normal marbles, to male sure it wasn't the vibration of the track?
I honestly wouldn't be able to tell you. I don't know enough of the fine details of nuclear physics to be able to figure it out or look it up. And this friend did try it with normal marbles, yes. Only the uranium glass marbles triggered a detonation when they rolled past, which indicated to them that it was very likely the alpha particle emissions from the uranium that could set it off.
Yes, this is reportedly the only compound being able to explode when an alpha ray strikes it.
I don't know their speed but I know that their energy in the case of uranium is around 4 MeV.
That's crazy
I hope Professor Onna Stick makes a repeat appearance :D
I was gonna correct your spelling, but then I got it
does stop motion with small-scale reactions
I didn't think Professor-on-a-stick had any sort of name other than Professor. I like your suggestion of naming it "Onna Stick," and I think that's what it should be called going forward: *Professor Onna Stick*
@@pluransart1795 why correct spelling anything
@@marciaosullivan3200 hey, don't judge my fetishes, O'Sullivan
Loved the Professor's stories. Being of a certain age and destined to be a science teacher I, like countless others back then, got up to mischief with touch powder. Liberally applied under the table legs and chairs in the school library to dry out, it made one school parents' meeting particularly lively. Loud bangs, screams, and doors bursting open, as people made a dash for safety.
I remember when I was in high school (oh, so long ago), a few of us went for an chemistry outing to Liverpool University. Had a chemistry lecture and the teacher started the lesson by just getting a jar of something out, and started splattering it on the floor near the entrance to the lecture theatre. Of course, we later found out it was Nitrogen Triiodide. It quickly dried out, and any student coming in late got a bit of a shock. :) Good way to teach people to be on time. ;)
Evi1M4chine toughen up, it is just a small little prank.
"opened his locker and it went off".....and his hair hasnt been the same since...lol
(love ya professor)
The man looks like he IS science. Not that he is a scientist, or someone who practices science, he IS science
I really need a professor on the stick for my lab! How could I even work without one all the time???
LEGO calls that minifig "Crazy Scientist"
It is available individually and in various sets.
@@drussell_ for sure he didn't know that
need more professor on a stick experiments Brady
(Falsetto voice) Not Professor Sluggo, he's going to be mean to me. Ohhhh noooooooooooooo!
Always a pleasure listening to Dr.Poliokoff😊
One of my friends did exactly the same thing at school. He made some (I can't remember how much but far more than he should have) nitrogen triiodide and left it in his locker. It didn't go off spontaneously though. Another boy whose locker was nearby, slammed his locker door, setting off the nitrogen triiodide and blowing the door off the wooden locker.
He'd probably go to prison for terrorist activities these days but then he just got caned.
We live in sad times indeed when prison has replaced The Cane.
3:26 Before the invention of safety goggles.
Jacob Zondag I've done a sneaky typo edit
premature detonation can be rather embarrassing. handle with care, boyos.
Lego Professor at 1:57 "Am I missing an eyebrow!?"
Yes, and half of your hair, too!
Professor wants big boom!
He rejects your reality and substitutes his own!
He lost a flask instead.
That is one tough professor
At some point in the late 1970s a person, or persons, unknown may have painted nitrogen triiodide on to a toilet seat in an educational establishment somewhere in England. Fortunately there were no injuries, but a certain degree of embarrassment was caused to the victim as he came flying in terror out of the toilet stall accompanied by a massive cloud of purple smoke.
Remember kids, don't try this at home.
no injuries.. why not try it then?
I'm actually seeing some contradiction here about whether or not it hurts skin.
That said, anyone who willingly sits on a crusty black toilet seat might keep their brains down there, so it might be a bigger risk.
Kairu Hakubi it was a very thin layer and the lighting in the toilet was pretty awful. Also, they had other concerns at the time. So the victim didn't notice. It burns so rapidly I doubt it would cause serious injury unless one used a large amount. Having said that it's probably best not to encourage experimentation with any form of explosive in uncontrolled conditions.
Would have looked hilarious 😂
giant purple fart
Well that explains what happened to professor poliakoff’s hair
Nice to see Prof. Sam Tang after so long!!!
That's cool stuff!
Ha, it can explode by the vibrations of a passing truck at 20 meter distance.
The dryer it is , the more sensitive it becomes.
The cartoon-like soot on Professor on a Stick is just perfect! I love these videos, and I've learned a lot.
The little Professor was awesome! I hope we get to see him in more videos!
We used to call this the "chemists flypaper". I would demonstrate this to school kids to encourage them to go into chemistry and the sciences. after I had an explosion, small crystals would scatter everywhere and the kids would walk over them to set the remaining bits off.
One time I had a very wet batch and the iodine leeched through the filter paper onto a nice wooden gymnasium floor. There was this small purple stain left over and I told the administrator that it would evaporate over time. Not sure if that was true or if it ever did though!
LOL! I loved the story the professor told about igniting an explosive in his school locker.
I want to know how much trouble he got in.
This is the stuff my older brothers made when I was a kid. Thanks for the memories.
I love you guys. It's hard to explain, but you speak to me. I love chemistry. Professor on a stick, an emotion I can not explain
I have often heard, that NI3 sometimes even explodes when wet. One person told me that he had exactly this happening to him, while he was a few metres away from it. When you're using a glas funnel to filter it, this can become very dangerous. Luckily, I have never seen this happening by myself... Nice video!
Random Experiments Int. - Experiments and syntheses I think what happens is that the outer layer dries over a damp interior. Had this happen 45 years ago when I was at school. Got my school uniform covered in NI3 that gradually dried out. In my religious education lesson that followed chemistry I was crackling every time I moved! Teacher kindly gave me leave to go and wash it off!
On a grade 6 field trip to a university, we were told to step on the brown spots on the floor in the chem lab. That was the most fun any class could ever have.
My father told me story of painting wet nitrogen triiodide on the front of a keyhole of the professors office door. When the professor went to open the door the key shot back out and away from the keyhole. Fortunately nobody was hurt.
It is interesting to see an explosive that does not have an oxidation reaction. Nor is it organic. I'm sure there are others but it might be interesting to see some other reactions that are unusual like this. Reactions that have more conventional organic or oxidisation equivalents.
its getting better and better , chapeau !
Loving the little Professor, awesome release as always, thanks to, The Mad Professor and his team.
P.S,... Awesome story, by the way, Sounded like an event one needed to be there to see.
Reminds me of school. Legend has it that some guys painted the blackboard with it. Led to an interesting lesson.
Another trick was painting it on sugar cubes and waiting for wasps to land. At which point it ignites...
Not sure now if these stories were apocryphal or not. I like to think not.
The Professor-on-a-Stick is awesome!
Professor on a stick should be an official Merch for Periodic Table of Videos! MAKE IT HAPPEN! !!
I made this compound in high school chemistry. Great experiment for demonstrating what makes things unstable as it has multiple things causing it to be so incredibly unstable, plus it's very enjoyable since it makes a nice explosion that's fun but not incredibly dangerous to do in a classroom (half the groups' samples went off at once by mistake as they were too close and the shockwave of one set off all the others in the fume hood, it was loud but, with reasonable precautions, safe)
We used to make nitrogen tri at school and keep it in a vial of alcohol to carry about. A small amount was wrapped up in tinfoil from a chocolate bar and inserted into a blow-hole in a brick of the corridor wall. Application of one's lighter to the end of the foil made a nice 'crack' that took the face of the brick off.
Thanks so much for this! My grade 11 chemistry teacher demonstrated it for my class back in high school in the 90s but he wouldn't tell us what it was because of an incident some years earlier. I tried searching for "contact explosive purple smoke" at the time but search engines just weren't what they are today back then. This has been bothering me whenever I remember it for the last 20 years!
When I was in HS, some genius made up a big batch of nitrogen triiodide and then left the wet mass in the chemistry stockroom to dry.
My hypothesis is that it dried unevenly, part of it dried out and then got triggered by stresses caused by warping drying paper. This detonation spattered wet mixture all over the stock room. However it happened, visits to the stockroom were a bit hair-raising for a week following.
Here in the U.S.A., during my freshman college days (over half a century ago), a chemistry professor gave us a lecture where he ended it with a long pole touching and setting off a rather large pile of this stuff. Evidently, not having thought through the consequences, the school's chem dept placed jars of iodine at each student's lab workshop location. {the iodine is the 'hard to get' substance, while the other ingredient can be found in any grocery store} That year there were over 500 freshman students taking chemistry. So, soon all over the campus, little purple explosions began going off. They soon became so ubiquitous that the school had to issue the threat that anyone found making/using the stuff would be expelled.
NI3.NH3 has reportedly been known to go off even when wet.
In my own mis-spent youth I once experimented with a small relatively fresh, damp, amount stirred up in a large quantity of very warm water, and indeed, the heat appeared to make it decompose, the explosions dampened by the liquid.
I've often theorized that's it's more the presence of ammonia that prevents the explosive decomposition than dampness but I can't find any research regarding that conjecture.
I do remember trying to store very small quantities under concentrated NH4OH solutions with success in that they did not explode prematurely and remained potent when removed and allowed to dry in the usual fashion, though some decomposition was observed as the solution became red with triiodide ion.
Isn't the iodine gas harmful?
Thank you for posting the chemical reaction in the video. Do so more often.
Yes, PPE and a fume hood. Always enjoy your videos!
If you tried that in school nowadays they would probably call a bomb squad and expel you.
Jacob Zondag Only if you are Muslim
@@scubacertified racist
wait nvm i read it wrong
I made this for my grade 8 science fair project. This along with black powder. My class thought it was great. The teachers? not so much. :)
You'd think the 2nd and 3rd guy messing with the nitrogen trichloride would have taken some care, put on some period equivalent of safety glasses or something.
Where did you think the glass in their eyes came from?
So cool! My chemistry teacher in Colorado made some.
I am so glad you posted this video. I was reading about NI3 last night and found it amusing how this video appears the following morning.
I enjoyed watching it.
Could you do a video on Sapphire Glass?
I wholeheartedly approve of the Professor on a Stick! 👍🏻👍🏻
Ammonia and bleach make nitrogen trichloride. Can you make this at home by accident if ammonia is mixed with an iodine-based disinfectant?
bruh, that makes chloramine gas
@@sgamingz1542 I was wondering if ammonia and iodine-based disinfectant would make nitrogen triiodide when dried.
Dear Sir Please tell me how the head of the match stick will ignite itself by the heat of any Chemical when we keep near to the 3 inches of distance to the Chemical without touching or rubbing the item. so please help me by saying this how the match stick will ignite itself without touching the chemical but it should ignite by the heat of Chemical. Please tell me. Please tell me.
What temperatures are achieved in the energy release? It appears to be quite low.
What do they use in "caps" for cap guns? I don't remember any purple smoke coming from them.
Terry Lambert This is far too unstable to be used in capguns. Wikipedia says capguns nowadays use something called "Armstrong's Mixture".
I adore everything about this video.
Love that new tool!
And now we have Professor Ona Stick as a new super hero.
the lego erlenmeyer flask made my night! 1:57
When I was a kid I read a recipe for ammonium tri-iodide crystals in the anarchist's cookbook text file that was going around BBSes.
Is that an actual thing? It seems to be the same kind of idea. It was said to be a contact explosive.
Such a beautiful reaction
My high school chemistry teacher (Macdonall) used to make nitrogen triiodide. He made little bunches of it just like in this video and then used to hit it with the end of a meter stick.
He said that on one occasion he had a larger than normal amount of it and hit it with the stick and blew the end of it off.
This was over 25 years ago, I don't think you could do this now.
Brady u doing a wonderful job
Heartiest congratulations to u
Thanks for watching
Why is the needed reaction energy lower when the compounds are dry?
How touchy!
You probably mean "touching" ;)
Will a 670nm laser diode pointer provide enough energy in an absorption band of NI3 to set off a small amount of the compound?
Better to use a 405 nm UV laser pen as the photon energy is higher. Works very well!
We need to raise more money so all schools can have a professor on a stick.
(1:33) Now Professor-on-a-stick looks like a proper one, having survived a lab accident charred but none worse for the wear (like a stereotypical student scientist). Save that figure for future reference.
How dangerous is the explosion exactly?
Like if a child would step on a small amount of it would it hurt?
Could you make some 1-diazidocarbamoyl-5-azidotetrazole?
Rem When you like stuff like that check out NileRed, NurdRage and Cody'slab ; )
Would lowering the temperature of the compound allow for more stability?
Way back in high school the class that was in the lab prior to mine got to make this (sadly we never got to do so). I put my lab book down on a lab counter and heard a small pop. There was an iodine stain on my lab book from one teeny tiny crystal that was missed in clean up.
"missed"
We used to make it in the 60's - a friend made a whole paper bag full - maybe 250g? It was in his satchel and I was standing next to him when he absent mindedly swung the bag at some kid. I couldn't hear for about 30 minutes afterwards, and every page of all my friends school books in the satchel was dyed purple - denial was not an option. The kid hit by the satchel was unharmed but very surprised.
As a schoolboy "chemist" I tattooed my face and had ringing in my ears for hours after leaning close to see if it was drying OK. A UV laser will set it off too, which is more dramatic than tapping it with a feather or a little lego figure.
could you explain how a binary explosive compound like Tannerite works? ...i understand how this might be tricky to demonstrate on campus or in the lab.
5:50 Beaker gets blown out of his hand.
Chemistry can be a rough business.
I just stumbled across these videos. Can't stop watching. There is always a handful of thumbs down. Who are these people?? What do they don't like??
Appearently my first year Chemistry prof was also a prankster then, he used to put NI3 on the staircase leading to the lecture hall, supposedly for demonstratiomal purposes... He isn't allowed to do that anymore.
Is it an actual detonation? or just a fast reaction? Like the stuff in little toy cap guns? or are we talking primers for bullets?
It's WAY too volatile for any kind of real use. You can't even transport it in dry condition.
I made some of that in high school. The neighbor kids called it "pop paint".
In high school in the mid 1970's, I mixed up a batch and sprinkled the damp precipitate in tiny little rice sized globs all over the hallway floors while the students were out for lunch. When they returned from lunch, the pandemonium that arose convinced the vice-principal to pull the fire alarm and evacuate the school. The fire department arrived with sirens and great commotion but finally they left and the janitor was tasked with 'mopping up' with an actual mop and water to 'clean up' the mess. As he mopped, the nitrogen tri-iodide kept popping and banging as he swiped with his mop. Unfortunately, the water and the iodine mixed and formed stains on the floor. I had been observed sprinkling the chemical on the floor by a young student and was nearly expelled and had to clean up the stains off the floor.
What about Mercury Fulminate? Does this not do a similar thing?
Laughing out loud on the train, love the professor on a stick
Love this channel
I made a little bit a long time ago and set it off. It seemed dangerous. And it exploded so loudly that I was worried I had caused ear damage. I haven't made any since then...
It's a very specific medication when added to water that should be on the market and known about
According to Wikipedia, the chemical that injured Humphry Davy was Nitrogen TriChloride, not TriIodide. Be that as it may, Davy was pretty much out of action for about six months. Because of this he hired Faraday to do his grunge work, mostly paperwork. If the accident hadn't happened, or if Davy was killed in the accident, modern history would have been very different. The electrical revolution would have either been greatly delayed, and probably Maxwell would not have come up with his equations which really started modern physics and electronics since Maxwell used Faradays experimental results to come up with his equations.
So that was a very important accident.
well... that new tool is pretty amazing :D
Are nitrogen fluoride and bromide just as dangerous, or worse? Maybe they are more stable and have some interesting properties?
what leggo kit do u need to buy to make a professor?
3:10 I have exactly the same typ of heated stirrer. :)
So? Is there a video on nitrogen tri chlrode and if not will we get one?
202A 303B no and I highly doubt it because it is as unstable in its liquid form as Nitrogen triiodide is in its dry form and has far more explosive force. To give you an idea of how sensitive NI3 is it can be set off by the air bumping into it which is what you saw in the video sometimes photons can do it sometimes just plain old Brownian motion amongst it's own atoms.
When my dad was a chemistry student at the university he made Ag2C2 which he and his friends scattered around the hallway while it was wet. Next day when the janitors came to do their regular cleaning the tiny pieces exploded with a sharp crackling sound.
I've seen this explosive set off before - I think it may have been at the Royal Institution - and they set it off by brushing it with a feather. It's hard to imagine just how sensitive this compound is. :-)
Whenever I make Nitrogen Triiodide it explodes spontaneously as soon as it gets dry enough. What am I doing wrong?
my question was always how is it made? Is it with I2 and NH3 or is it something else? :/ :/ :/
So, this is a fulminate?
Can nitrogen triiodide be ignited using an alpha source?
Is that stuff toxic...the smoke / fumes?
great video very informative
Love the purple smoke.
I love how it starts playing peacefully music while showing violent detonations.