Combining what shouldn't be combined: Making Cesium superoxide 

At 0:56 there is a mistake in the video. Cesium Peroxide is Cs2O2. Sorry for that! In this video, I tried to show more of my thought process and the procedure itself. Let me know if you like it or if it is too lengthy and gets boring.

Wow that is a very difficult reaction you managed to do there! I would love to see some reactions with the cesium superoxide!

Dude that was amazing ! I thought for sure it was going to fail; but no, instead we get yellow chemistry after all !

Within every genius lies a madman! Awesome video, your content, presentation, and workmanship is definitely top notch my friend. Thank you very much

A pity there was a spill. Very interesting seeing the paramagnetism properties.

Reacted under 1 atm oxygen at 290 C for two weeks--that's someone who had a lot of hopefully justified confidence in their apparatus.

This channel is becoming my one stop shop for all things Cesium, a most fascinating element. Great video, keep up the great work! Also oof, that moment when you cracked it. Painful but glad you persevered.

Awww! I felt so bad when you said you cracked ghe reaction vessel 😲 what a shit! I admire your dedication and perseverance to this experiment 👏👏👏 new sub just for that alone 😂

Next on Advanced Tinkering: "Let's make some Cesium-137."

ein thema ist mit dem Ofen und dem Bor-Silikatglas: Bei den hohen Temperaturen neigt das etwas zum "altern" und kriegt unter umständen mikrorisse. Deswegen werden Cerankochfelder eben nicht aus dem Bor-silikatglas gemacht. Quarzglas ist diesbezüglich gutmütiger. Ansonsten: Trotzdem mega geiles fortgeschrittenes Gebastel!

I feel like eventually you're going to make something noone has been crazy enough to try before.

Im new here but really awesome dedication to the experiment. Very interesting and informative. I totally appreciate your content and am excited to take a look at your library.

This channel, and this video in particular is criminally underrated.

I love how you feel about pictures and video of rare substances needing to be available.

What an exercise in frustration and self hatred lol, I love how you beat yourself up over this stuff and get pissed off, the realness is much appreciated!

K02, there's something I haven't played with in 35 years... some neat stuff. Interesting to me that the cesium superoxide is almost identical in appearance to the KO2.

Really cool. Great job That long....not being sure if it was going to work, would have driven me crazy. I bet you were missing a glove box. I made a pyrophoric cmpd that fell out of solution and I filtered the solid straight out of the reaction flask on a schlenk line , rinsed the solid still on the line and still attached to the reaction flask. Had to take everything to the glove box to get the solid, though. But it was made, cleaned, and the solvent removed all on the line without taking anything apart.

Great video as always!

After spilling, when you said “let’s go…”, that exact moment is a whole mood

Physicist here working in X-ray Laboratory Astrophysics. Didn't know pipettes could work with vacuum pumps and flanges! That's insane. thanks

I have that same o2 concentrator for recovery of my last pneumonia episode. Very reliable.

Very good video!

Nice work 👍

Good video nice production

A good way to make alkali oxides peroxides and superixides (oh my) is to heat the alkali metal to bpiling and react the vapors with oxygen in a burner. The oxide is Cs2O, the peroxide is Cs2O2, and the superoxide is Cs2O4. The last demo was pretty neat. 🤓

Your attention to practical detail is thorough, and fascinating to watch for these rarely videoed processes. However at 0:56 your formulae are incorrect. Cesium (mon)oxide is Cs2O and cesium peroxide is Cs2O2. Non-chemists may get confused.

Many thanks for great content . All the best from Croatia.

Such tenacity.

I think the magnet you use has a yoke, which makes the field very short range, compared to a separate magnet. That is important because you do not touch the paramagnetic substance.

@12:47 Wie es Martin von Wintergatan beim MMX-Projekt so treffend ausgedrückt hat: "Pain is temporary, glory is forever"

Super! Thank you very much!

Really cool

5:34 very cool watching it go black surface

This must be the 1st time I see a drill bit used as a chemistry lab tool

Really curious to see the CeO3 reaction ! Good work, can't wait for more stuff from you. Maybe a collab with NileRed would be thoughtful too :D

I would have expected the magnet to move the particles inside the tube but I didn’t see any internal movement, did it move lol, if not, I’m curious why not?

Was watching an old nilered video, heard the term “super-oxide”, and here I am- 👍

Just what I could read in a bit of what you scrolled through, I was very intrigued! Do you have that paper to give away? ;)

Would a tiny stir bar in the cesium be feasible. I know I have a couple that are the size of a tic tac candy.

This puts extra yum inside.

What uses are there for cesium oxide?

Hypothetically, could you attach a glass rod to the side of the reaction vessel and hold the glass rod, instead of clamping onto the outside of the vessel?

I half-expected you to end up with cesium argonide.

Does cesium chloride taste as bad as Explosions&Fire says it does?

Any chance you have or could make some rubidium and then show its alloys with cesium and other alkali metals?

You think something like this could be used for navigation?

Oh so gutget for you when you broke it :'( But you did good man! Push on through!

Not too. lengthy, but I wonder if mixing A stream of Cs vapor with oxygen wouldn't be faster & simple r. Hopefully not too much faster.

I wonder what would happen if you suspended the Superoxide in water. Would you make a sort of paint (which would presumably turn black again eventually - I don't really know the full chemistry here I'm just a nerd) or would it do some crazy reaction? Probably best to use a fume hood in case it makes something dangerous. But water is one of those substances that almost always does something interesting or "interesting" to the other chemical.

would like to see a Diffractogram of that powder

Suppose that your oven made of paramagnetic material. Could it be the parts of the oven that interacting with a magnet?

a question please, Cs is more reactive than Li, how come Li can rob it of its oxygen?

Excellent work there. What's the purity of your argon?

What good is it?

"Sit on a couch for approximately 1h hating yourself for what you had done" I don't have the proper equipment to replicate your entire procedure, but that one step I can do.

06:40 My first thought: the oxigen needs bubbler to be introduced from the bottom up.

So, now, there's an image of it in the internet - or is there?

"I'm going to introduce oxygen to the mixture" *agitates it by tapping and shaking the compound* Cesium: "You must not like fingers." 💀

how do we know that the magnet isn't just pulling on the steel plate of the scale?

I wonder if caesium reacts with Xenon

My dude found the missing component to not make the reaction too violent: hope.

I think its interesting that with potassium there are these horror stories of people pushing some oxidized crust into it and it exploding but with partially oxidized cesium which should be a more non forgiving mixture of highly reactive metal and superoxide nothing much is happening. Of course I am happy nothing happened to you during the procedure but it seems curious why potassium seems to be more reactive in these situations if the reports are indeed correct.

you is from Spain!

....I want to make a vile of that for myself soooo badly !!!

How stable is this stuff?

Happiness does not come from having much, but from being attached to little.

Through the oceans or through the sky?

Why doesn’t it only form Cs2O? I would think that this is the most stable

She moved forward only because she trusted that the ending she now was going through must be followed by a new beginning.

organic chemistry: neat clear liquids reacting with eachother, some color appearing due to carbocations inorganic chemistry: *litteral filth*

But why "superoxide"? Isn't 2 oxygens a dioxicide normally?

If you positioned the reaction tube horizontally….I think a more complete oxidation would occur…..may have to chill

You need to repeat the measurement with a piece of the same glass you used to make the tube. How do you know the attraction is not due to something in the glass, or contamination of either the sample or on the outside of the glass? The tiniest amount of ferromagnetic material would do this!

One year later you can now find pictures on the internet lol

Why do you call it super instead of dioxide?

Why don't you reduce with calcium metal? Much cheaper than lithium.

9:23 seconds before you said this, I thought “why not use a drill?”

Why Lithium reduces Cs+ into Cs? Should be the opposite...

Why Cs react with oxygen didn't explode 🤔

"I have lost more than half of the product" After spilling it 🤔 It's not gone, it's still there... You could just purify it

Black surface?! High concentration of electrons perhaps?😅

When can people create CocainumSuperoxide?

why isnt it just called CesiumDioxide?

Cs2O - peroxide?😮

Why no radiation monitoring?

You're shaking the cesium oxygen mixture! That's scary AF, because it could've just oxidized the surface layer.

0:58 you wrong, the peroxide should be written Cs2O2

Why isn't it called cesium dioxide

Dangerous

boah bist du deutsch xD aber stabiles video, hut ab

(1) 0:40 Lithium is the least reactive of the alkali metals while caesium is the most reactive. Why would lithium replace caesium from CsCl . . . how is this even possible? (2) Cs2O is just normal caesium oxide, not peroxide.

Hold up... It's yellow...

When you mix CSGO and Half-Life:

I just figured out that if you have one carbon and 2 sulfur you have just made CS2

9:57 loosen up the product....sounds like its of a questionable use product walter would be proud

The peroxide formula at 0:55 is wrong. That's the oxide. And THIS is even harder to obtain...

you need to moisturize your hands, my friend

You might be the first person to *drill* cesium.

0:58 WRONG! CsO or rather Cs2O2 is called cesium peroxide. And Cs2O is the cesium monoxide or rather just cesium oxide.

Man there’s 137 reasons to make another video amirite or amirite