Opening a Vial of Cesium Underwater

In this video I show you what happens when a vial of the most reactive alkali metal is opened underwater.

[izakaya]

So, Caesium is more reactive than sodium, but sodium is "just right"

[danieldaponte]

The slow mo guys should partner with you for something like this

[BobGnarley.]

Very cool! hope you got a new sample to replace it!

[bruhidkwhattonamethishandle]

This is better than learning at school

[joshuabaughn]

Let's just say you need to have the bomb squad on the scene to test cesium reacting with water.

[rotciv]

it's hilarious that manscaped is sponsoring short science videos because yes, there is a neck beard situation in the STEM field, but you all ain't ready for that conversation.

[meph]

i'm more curious about how they encapsulate the cesium to begin with

[JerryDLTN]

I remember in my high school chemistry class where we went outside, stood around a 5 gallon bucket as the teacher put a chunk of sodium in the water. Several people were startled and landed on their butt.

[norxcontacts]

I thought cesium would blow up a bathtub.

[litigioussociety]

First time I've ever heard someone pronounce it Frank-ee-um.

[MaxShibby]

After we observed the sodium reaction in high school, I always wanted to get my hands on some cesium, learning that it is even more reactive. So while the result was a tad underwhelming, this satisfies something I’ve wanted to see for 20 years. Thank you!!

[EyespenNoFear]

Goldilocks tried the Lithium reaction, but it was too slow.
Next she tried the Cesium reaction, but it was too fast!
Finally, she tried the Sodium reaction, and it was just right.

[mjbalbo]

Come on bro, this isn't the first time you put a picture of a pool on the thumbnail and then use a bucket of water in the video

[lsdzheeusi]

Now that the cesium hydroxide is in your water tank, would it be possible to get the cesium metal back?

[daysend]

Please do a collaboration with the slow-mo guys with this underwater reaction. That would be so cool to see in super super slow motion.

[tejassrivastav]

Action Lab - " I still prefer Sodium for some Good Explosions"
FBI - 👀

[rexisnox]

Minor correction, Cesium is the most reactive, Francium is less reactive due to relativistic effects. 0:16

[ParedCheese]

Pronounced "Fran-see-um", I believe?

[ALBINOD]

We live in a universe where anything can happen, including but not limited to Manscape purchasing Cesium at a higher cost than gold per gram for this man.

[austinbutts]

Fun fact: very pure Cesium actually has a melting point slightly above room temperature, but most samples have just enough impurities to lower the melting point (kind of how salt lowers the melting point of water ice). Don't feel bad if your sample is liquid at room temp though, it's very difficult to pull off unless you specialize in this.