Advanced Tinkering - 2022-07-03
Most of you have already seen Cesium being dropped into water. But I am sure, no one has seen cesium being dropped in liquid oxygen. It is the most spectacular reaction, involving cesium, I have ever seen! The experiments were done in a safe location and under strict safety precautions. They are for educational purposes only and should not be repeated! Go and check out Elias Channel (its great!): https://www.youtube.com/c/EliasExperiments Do you have any suggestions for other reactions involving cesium? Let me know in the comments. If you want, you can join my patreon to help me working on my projects. I would really appreciate it! https://www.patreon.com/AdvancedTinkering
Where's Tom from Explosions&Fire when you need him? He does make an excellent point about using plastic cups instead of glass beakers for this kind of work! 🤣
I agree, it was a lot of fun performing these experiments with you, and I hope we can continue doing stuff like this together in the future!
I feel like the German government doesn't really appreciate you...
Absolutely extraordinary stuff. I've certainly never seen liquid cesium liquid oxygen reactions before. I've been following the progress in understanding the strange nature of alkali metal water explosions since seeing that first classic cesium-water reaction shown in a BBC Open University documentary in my high school chem class in the 90s. Nothing made sense about the conventional explanations everyone gave back then of simple evolved H2 explosions and the revelation of Mason et. al. work in 2015 that it was a coulombic explosion complete with blue solvated electrons was totally amazing. But here, we may be back into mystery territory. That last shot you have here of the 4g Cs liquid into the LOX shows a TRUE DETONATION. That is absolutely not a deflagration, I can see the shock front distorting background imagery on the frame by frame. What is causing it?? Is it really just rapid oxidation with the O2? Did the small amount of mineral oil cause a conventional hydrocarbon-LOX 'oxyliquit' detonation?? Is it a coulombic detonation with the Cs again, and if so how does that work in LOX? Many questions. I would definitely love to see a repetition of the experiment done in an unsilvered Dewar flask with an ultrahighspeed camera (at least a Chronos, but preferably a Phantom) so the frost on the LOX container isn't an issue.
Wonderful thoughtfully conducted interesting investigations.
Yes, there are many unknowns. If we get the chance to use a high speed camera, we will try to film it on a small scale in a dewar.
It took me a few seconds to realize, "Wait, where's the beaker?"
That reaction is remarkably energetic. Thank you for doing this safely!
found you on the Reddit post haha, cool video. subbed
Thanks! I really ppreciate it!
Glad no one got hurt, that last clip was INSANE!! such an immediate and absolute explosion!
You and ChemicalForce should do a Cesium video together, I feel like that would be the perfect mixture
He has some awesome high speed equipment too. Also, I wonder if the Slo Motion Guys would be interested. They don't do too much chem stuff but have the best high speed cams.
@@LFTRnow they actually rent the cameras for their videos as they are too expensive to own.
That beaker was just vaporized, amazing, can't wait to see the other experiments
You know I recall thunderfoot doing full proper lab experiment getting high speed footage of other metals going through the reaction here. It is really fascinating stuff the more you look into it and how this reaction is taking place.
I litteraly just watched that fake video yesterday in class! Thanks for showing me the reality!
Liquid oxygen is such a lovely colour of blue.
In the 1990s my friends and I stole about a half pound of cesium from our high school science department, and dumped it from a bridge into a canal. It was a lot less violent than we expected, but for a brief moment we could see the floor of the canal (maybe 5 feet deep).
What would liquid ozone and cesium do? Anyways, great video!
Liquid ozone is terrifying by itself.
Jeez that was a big explosion , impressive !
Great video.
Did you use a medical oxygen concentrator and your cryocooler to make the LOX? In another video of yours, I recognized the blue O2 concentrator 😄 That's the exact machine I use with my Stirling cycle cryocooler to make LOX. But reacting with CESIUM!??? I gotta hand it to you Germans, you do the most spectacular things!! The best thing I did was dropping lit candles into LOX.
6:56 What about somebody who lives in Germany but doesn't have a high speed camera but a chemistry degree, and would really like to see some cool experiments in real life? 😛
Very cool video!
what a mess in this nice garden spreading glass around.
Me, living in Germany and being afraid to change oil in bike by myself (because neighbours call the Firefighters). These guys: doing experiments with cesium on back yard... In last try explosion could also be amplified by mineral oil since almost everything that can burn also can explode in LO2
Love it
However there is some questions concerning the last reaction - the oil itself could have contributed the MOST part of energy release, while being ignited by cesium ! It is very well known to keep away oily stuff from oxygen cyllinders for a reason! If you ever repeat this stuff please make sure only metal reacts to get the true picture. Good video btw.
Thanks! Yes the oil definitely had some effect. I would guess, that the fireball was mainly caused by the oil. But I don't think it contributed the largest part of the energy released. If you watch the parts where we dripped small drops of cesium into the beaker, the energy released is impressive. And those drops are probably 0.05 mL at the most. And there is no oil present.
But if we do it again, we will try do to it without the oil.
@Advanced Tinkering honestly I don't mind the oil. The fireball looks cool 😁
@@AdvancedTinkering And - what might be even more important - Cs has not a very high energy density because of its high atom mass. Sodium has almost three times the volumetric energy density. But of course, sodium isn't liquid at room temperature. But Na2K is. And the alloy has over double the energy density compared to pure Cs.
Great content AGAIN ... last one have power of metal device on the wooden stick with rope inside ... (no kidding) many thanks
Thanks for this video. I was wondering if you’d be able to carryout a reaction between liquid oxygen and a MOF(metal organic framework). Thanks!
I do not have any MOF have access to it. If I ever get the chance, I will try it.
Wouldn't it be simpler to just omit the annoying acronym?
Sorry you waited a year for this answer: no.@@MadScientist267
I have just received my order of metal elements and I want to start the experaments - but safety first
You should totally try this with NaK, and if you're insane enough do it with ozone
Not sure if I missed it if it's already been done but I'm curious what cesium in liquid ozone would be like and if it would even be different than lox.
That actually is on out to-do list. But we haven't had the time to do it yet.
exploding glass next to a playground?? wtf!
Glass beaker probably wasn't so great idea! Great video anyways!
Yes, in hindsight the glass wasn't a good idea.
,,Stay Scienced by RL Science,,auf Youtube hat eine Highspeed Kamera aber er ist in letzter Zeit recht inaktiv geworden, deswegen muss man mal schauen ob du ihn erreichen kannst. Aber seine Shots mit der Kamera waren recht gut.
Btw ich liebe deine Videos, und ich finde die so interessant, informativ und spannend das ich gar nicht versteh warum ich dich jz erst gefunden habe 😂
The fact that Jeremy Hamster allowed that lie to go on air will prevent me from ever trusting him about anything again.
To be fair, the original video was made in Britain. So it's pretty honest by their standards.
Have a Keyence "high speed" camera, it is not very high speed but it works.
I wanna see every one put together at one time some how like all the ones you just showed lol
I wonder if that's a deflagration or detonation
Why use glass containers and not a steel tank or other metal?
Make a seal metal container to hold the reactants!!!
The Slo-Mo Guys have come several times to the USA for special projects, so maybe ask them to visit you?
It is the excess electrons getting ripped from the cesium atoms via conductivity and "flowing over into the oxygen that gets reduced.
The flow of electrons is basically like an electrical explosion and then the hydrogen evolves can also react, but in this case gets blown away as it's a much slower reaction to liberate final hydrogen gaseous product.
I can't believe Brainiac lied to me, i may never trust again.
How about cesium and flourine?
the Cesium in mineral oil reacting with the liquid oxygen is basically a fuel air mixture bomb like a Russian thermobaric bomb.
Yes, we want to repeat this experiment without any mineral oil present. Curious to see if the violent reaction was mainly due to the mineral oil. But I doubt it.
@Advanced Tinkering There's simple no way that it didn't: you've mixed liquid fuel with more than enough oxidant to burn it than you gave it activation energy.
The mineral oil definitely reacted. But considering the violent reaction when dropping pure cesium in liquid oxygen and the fact that there was only a very small amount of oil covering the cesium, I think the reaction wouldn't look much different without the oil. You probably wouldn't see a fireball though.
We will see when we repeat the experiment.
Perhaps next time plastic cup type containers instead of beakers, much less energetic shrapnel and you don't wind up with broken glass all over the ground.
Of course putting lox into a hydrocarbon container has its own risks lol.
Yes, a plastic cup would have definitely been wiser. We spent quite a while collecting all the glass.
@Advanced Tinkering lol, Hey I replied to your email about making things BTW but I haven't heard back. Did it go to spam again? You might need to add me to the whitelist or something
Wow you are getting true detonation with some of these reactions 😲
Question could the extreme outcome in the " fake" reaction be because the cesium was fully submerged when exposed to the water rather than being dropped on top or into it raw. I ask because wouldn't it being properly submerged cause more of the cesium to react.
The reaction in the brainiac video is definitely faked. Yes, the reaction would be a little more violent if the vial is completely submerged. But nowhere near like it was shown in the video. There is a video from periodic videos where they crack a vial underwater and you can see the difference.
Id love to see what happens if you mix cranium with flouroantimonic acid
Makes me wonder if the reaction between caesium and liquid ozone would be even more violent, though tbh I don't know how you can get much more violent than the reaction in the video...
We already thought about testing this.
@@AdvancedTinkering I've never seen liquid Ozone. I would like to see it just to see it. It's very toxic.
Imagine being a kid running around there afterwards lol
YOWZERS!! Is that a Coulombic explosion?!
Just thinking of being out in the backyard walking around, barefoot finding pieces of glass
It's not a backyard ;) It took us a while but the whole area was cleaned afterwards.
@AdvancedTinkering - 2022-07-03
Here you can find Elias video: https://youtu.be/Dt-DzZzzTnU
@TheRolemodel1337 - 2022-07-04
can burning cesium react with carbon dioxide similar to magnesium? (Cs on dry ice)
couldnt find anything on the web
@AdvancedTinkering - 2022-07-10
@TheRolemodel1337 We will try it in the future.