Caesium in Water (multiple cameras)

[AlternateArtisan]

and now the water is super caustic and would cause chemical burns

[iwillavengeyou]

i REALLY HATE how all these youtube vids are like 1mg cesium in water.

go big or go home? get like a golf ball sized one and throw it in a like 50 ft away!!

[98JMA]

@iwillavengeyou

That's fine, we'll just let you pay for the caesium!

[Draphcone]

@iwillavengeyou and you're like watching this for free on the internet...

[WinAndLinuxTutorials]

I think the chemical formula is 2CeOH + H2. Is it right?

[Wildm0use]

@WinAndLinuxTutorials 2 Cs+2 H2O = 2 CsOH + H2 - exoterm

[ninpohimiko]

makes a good laxative...

xD

[lisa850331]

Another waste of a glass bowl....

[CallfredYT]

there is no use trying to find Francium with water, Because there is only 20–30 g that exists at any given time throughout the Earth's crust

[HYEYBT]

@CallfredYT Also, it's so incredibly radioactive that an explosion would be a mild paper cut in comparison.

[falloutfreek1992]

imagine caesium plunged into liquid fluorine.

[nybotheveg]

@falloutfreek1992 i'm gonna have wet dreams about that tonight :P

[iNFamousAAC]

@falloutfreek1992 It would divide by zero.

[Darkemperer]

Looks like reverse Wadsworth constant applies here. The most condensed information being the first 30%.

[denelson83]

Caesium Plus? That a brand of cracker?

[Loui5D]

Caesium and H2SO4

[HellDareTHD]

Now time for Francium 

[Jkun]

what would happen if you had a LOT of caesium and were able to put it in a watergun

and fire a constant stream of it into a pool or other body of water?

~Jkun~

[LiamCrowley1990]

@Jkun Caesium will ignite in air so you'd have to somehow preserve it in argon/vacuum/nitrogen/etc. otherwise it will instantly catch fire. Then, when you fire it, it will definitely catch fire as soon as it leaves your watergun. When the fiery stream of caesium hits the water it will explode. It's quite likely you'll have dropped your melted watergun and ran away from the fire and explosions realising this was a silly idea as the mound of caesium burns away on the floor.

[Jkun]

@LiamCrowley1990

I guess the only answer is to build a more practical watergun then xD

But yeah, it is probably not something to be attempted without knowing the risks :P

(not that I'm gonna do it, but wouldn't mind seeing someone else create a gun/watergun out of a metal and use it to squirt a whole bunch of that stuff into a pool or something xD)

~Jkun~

[Ryanlauph]

@Jkun It would explode as soon as you fire it, even BEFORE it touches the water, In fact, it would explode IN your watergun.

[Jkun]

@Ryanlauph

That may be, but I still like the idea :P

~Jkun~

[bbawor]

Really useful, thanks:)

[supakiwibaby]

kewl

[4espritdrummer]

Thats what Chuck Norris uses for tea

[Novinte]

What about alcohol?

[MagnificentBurger]

How much cesium did you use there?

[tbdonnelly67]

My Chemistry students always thought it was funny to say "sleazy -m" instead of caesium! hehe!

[tube2a]

How sparse is cesium as an accessible mineral on this planet?

[TheShiftyLetsplayer]

Cs+H2O->2say your prayers+bad idea+big bang

[wildfyah]

@TheShiftyLetsplayer lol

[MrMaltbread]

@HelixProtocol That would be excellent a 1kg block of caesium in a bucket of conc HCL would make a top video

[Ihateflagging123]

Imagine Francium in water, LOL !

[alex054739]

I thought caseium would be stronger then sodium?

[vulcathene]

Try and get francium in water

[thetruebluemonkey]

@vulcathene good luck. There's like 8 atoms in existence.

[pillroller88]

Does the cesium sublimate to gas that quickly or what is the end result?

[0mniaV1nc1t]

@pillroller88 Caesium reacts with water, liberating hydrogen gas and leaving a solution of caesium hydroxide.

[micas96]

@kristijanadrian They are all compared in normal temperature conditions, of course if there are massive temperatures even Hidrogen can be more reactive...

[shidoink]

but whats better than that.... i left to eat dinner and laid my headset on the laptop fan and now i have a heated headset

[MissViolet241]

@DeathIzurfriend u'd be killed by then, probably i could blow up dr merrick's class! (chemistry teacher from year 7... never liked her!)

[g95jon1]

Why doesn't anyone have some Francium to be blown up?!?!?!?!?!

[boscostix42]

@g95jon1 because, francium is highly radioactive and has a half life of a few secounds so you wouldent have enough time to prepare a sample while trying to not get kiled by the radiation and drop it into water, in other words, GOOD LUCK

[ELLo1997]

Is it now Caesium hydroxide wich is corrosive?

[michalchik]

I still get the feeling that most of the cesium was not involved in the reaction and dispersed as shrapnel. Try putting a bag full of water on top of the cesium and then break the bag. The reaction will disperse the cesium.

[clarkloveselevators]

That was so cool

[crazydave303]

I know wiki does not have reputation for the most accurate sources but for scientific information you are usually safe to assume the have their fact right. You can check to see if the information as been thoroughly checked in its' Discussion page.

So if you don't know you facts at lest look it up rather being lazy and asking.

[crazydave303]

caesium-133 is not radio active

Clipped from Wiki:

"Caesium has at least 39 known isotopes ranging in atomic mass from 112 to 151. Only one of these, 133Cs, is stable .... Radioactive 135Cs has a long half-life of about 2.3 million years; 137Cs and 134Cs have half-lives of 30 and 2 years, respectively.... The isotopes with atomic masses of 129, 131, 132 and 136, have half-times between a day and two weeks"

And then is goes on to talk about the others lasting a few hours to fractions of second.

[crinoid1919]

im curious what the smoke is make up of

[CastorVigilant]

@crinoid1919 Isn't it steam? That reaction must produce a lot of heat, which turns water from the container into steam. I may be wrong though, i'm not a chemist :P

[HyperBob0007]

@crinoid1919 its hydrogen gas ^^

[pchk1]

I've tried throwing sodium and potassium cubes in nitric, sulphuric and hydrochloric acids. Now it's your turn to do that with caesium (!!)

[bdf2718]

Teabaggers!

[adaksaheb]

where do you guys get caesium?

[darkace355]

@adaksaheb dont be an idiot......

[marcuelcajon]

How about a Cesium filled capsule with a jelly bean coating = One mean prank.lol

[zeeshan55]

Francium in water has never been tried. Imagine if it did....

[adaksaheb]

Fransium is a very rare metal. The longest living francium isotope has a half life of only 22 mins.

[ma356289]

@zeeshan55 that's gonna be the most watched video in the universe

[Lukex115]

I was about to comment saying "No WAY is that Caesium, that was waaaay too reactive to be Caesium, it's probably Rubidium you have there or something...". Then I noticed the size of the piece you were using xD

[Dobility]

@Lukex115

Caesium is more reactive than Rubidium..... What are you talking about.

[sabin12197]

@Dobility it is its lower on the alkali metal scale.

[zzyzybynsky]

yeyeyeyeye

[WackyWadslow]

Alkali Metals arent radioactive...

[troodon9999]

Francium is.

[flametiger2]

@troodon9999 francium is the rarest element on earth

[HateMadeFlesh]

Aww, where's Francium?

[SFXgalore]

lol, it would be awesome but it is unstable and the atom would break apart before anyone could put it in water. And who would risk their life anyway...?! XD

[HateMadeFlesh]

It'll be like a depth charge. :D

[flemish4]

radioactive!!!!!!!!!!

plus there's not enough on earth to do this type of experiment with!!!

[keyloggersfiles]

haha wrong this is a demonstration not an experiment

[MoshinGerNade]

An Alkali Metal*

[hyrael2]

somewhere not here. Francium have 22min of halflife, after this, this start degrading.

[bommobiel]

I wonder why they used kalium instead of caesium on mytbusters ;)

[TutorialGeneration]

Because potassium is cheaper that cesium

[TutorialGeneration]

Then*

[randomdude32]

Than*

[Draxis32]

I wonder why they didnt used the "Mythbusters" tv show tecnique, of breaking the ampole under the water to cause a massive explosion.

[Envergure]

IS that steam coming off, or smoke from the oil?

[Draxis32]

It's Both Steam from this very exotermic reaction, but also combined with Hydrogen that the reacton releases

[BlackVirusxz]

that is the hydrogen released from dissociating the H2O molecules

[ewinjo]

pause at 1:26 you see 2 glowing pieces falling

[waterfat]

Sweeeeet

[sailtheseaofcheese]

it would be worth while to invest in high speed cameras

[nottinghamscience]

@sailtheseaofcheese: I'd love one..... we do try to keep our costs down though! :)

what's the cheapest one you've seen?

[bananarama666]

Set up a donation box and buy a Casio, 200 quid can't be that hard for a science department to come up with! 210 or 420 fps won't be too revealing for a reaction that fast, but it is certainly going to look a lot better, and there are dozens other uses you can put it to - not to mention you can have the IT guys hack it. Or wait for the next model.

[panzuman]

@nottinghamscience you can get some cheap cameras that have a highspeed ability quality is not the best but it works :)

[CWSFDavid]

@nottinghamscience there is the Casio EX-FH20 that can do 1000 fps and its quite cheap too.

[jjovereats]

@nottinghamscience Probably Viewty.

[jjovereats]

@nottinghamscience Viewty.

[jnthnbush]

yea, I thought it was going to be shot with a high speed camera, but its actually just played back a slower speed, lame.

[sslobodsky]

Whether there is a technology to return metal in an initial condition? And how many energy is required for this purpose?

[P0rphyro]

Michael Bay will be on the phone, I guarantee it.

[Starlababy]

what is casium?

[HeroinMethod]

google ceasium

[johnclavis]

Caesium the day!

Thanks once again for some wonderful, scientifical videos!

[GeneralTagatashi]

I would guess that it is the same as all other group 1 metals with water. Caesium + Water -> Caesium Hydroxide + Hydrogen Gas with the hydroxide dissosiated to the ceasium + ion and -OH

[320iguy]

What is the 'by product' of this reaction? is the gas left behind the only by product of the reaction?

[juggliac]

much more impressive than the first time you tried this!

[itsabomberscope]

Very nice. Shame you have not got a super slow motion camera though.

[qwAirGear]

Part of me is betting that the reaction is so fast that a high-speed camera wouldn't give much more information than the cameras that are already being used.

[GeneralTagatashi]

@Sean - I could be wrong about this but I was told by a lecturer if you dropped a large sample of Caesium into a large body of water the sample would sink and the water would quench the reaction due to Caesium having a higher density than water, so you would need to keep the body of water fairly shallow.

[octareenroon91]

The first reaction (cesium + water --> cesium hydroxide + hydrogen gas) would go with or without exposure to oxygen. The hydrogen gas produced would not burn in absence of oxygen, of course.

I don't know how more water would quench the reaction, other than by impeding the burning of hydrogen. I'm now curious how the reaction looks if the hydrogen does not burn.

[Timbo992]

1:02 AMAZING!!

[seanbrockest]

As i've said, next time you want to do something like this, let us know in advance. You've got over 15,000 subscribers on the periodic videos channel. 5 or $10 from just 20% of them would raise enough money to buy a LOT of cesium.. Big boom in a swimming pool!

[nottinghamscience]

@seanbrockest: Cheers... I think you're optimistic thinking 20% of our subscribers would part with money, but who knows...

To be honest, we could probably scratch together the cash for a bigger sample, but safety issues would need to be considered.

In fact, if you watch our first ever caesium video you'll see we have a massive sample in storage already!

[GetMeThere1]

You need a better method to expose the cesium. I commented on the main video: use ultrasonic vibration to make a colloid of cesium in oil, then soak that into cloth (or an inert powder?). Then either dump a lot of water onto the cloth, or onto the spread out powder.

[kyromaster]

@nottinghamscience: Thanks for the video. It would be great if you could acquire a digital camera like the Casio High Speed EXILIM family that can shoot at 1000 frames per second. For example the EX-FC100WE is only 300$.

Check some videos on youtube: "casio fps"

[olivia614]

@seanbrockest GO BIG OR GO HOME!!! I say evryone gives $50 then they take a pane full and drop gallons into the ocean!!!!!

[jfcrow1]

Look close at 1:23  two pieces of metal are actually shooting like bullets out of the water.

[jfcrow1]

Cool Slow motion.