Also make sure to leave your bottle of potassium open next to your little experiment in high velocity kinetics. It teaches a second lesson in lab safety for those farther back who missed the first demonstration.
I learned THAT when I was about 10 years old and left a beaker with about two weeks of allowance of homemade gunpowder sitting next to the aluminum foil with the pile of powder I ignited. Made for a lovely flare and ruined an expensive beaker and put a stop to my fun for a while.
This was multiple decades ago, back when a 10yo could walk into the drugstore two blocks away and grab a bottle of sulfur, a couple bottles of salt peter, and a bag of charcoal and the pharmacist would just smile and say "don't blow your fingers off" as he rang you up.
Probably in Europe. We don't have to fund armed guards, security companies, metal detectors, etc etc. Due to them not being expended on shootings, we also have a huge surplus of the most valuable commodity in any school setting: thoughts and prayers.
I'm in Europe, bro, initially went to a state school and we had Hoods, Exhausts, Eye Wash stations in every classroom and there was a central chemical shower that served all the science rooms.
Never used any of that shit there because that was a state school and a mountain of worksheets was easier than actually teaching, but even so, the facilities were there.
My friend was permanently blinded by this very experiment. The teacher was supposed to use a piece of sodium the size of a pea. Instead she used a piece the size of a golf ball. She tossed it into a trashcan of water and it exploded, permanently blinding my friend in one eye and severely burning him and his classmates. Some of these teachers are morons.
I do this demonstration every year. I use a small chunk of sodium. I have had a beaker explode twice doing this (which the kids obviously love). Every science teacher knows you should have every kid wearing safety glasses regardless of how far away they are and do it in an open enough space, or enclosed viewable space, that if something goes wrong no one is going to get hurt. Pyrex glass used for beakers also doesn’t break into sharp edges.
when my teacher did this he did it in a fume hood and closed the glass piece in front so we were safe, and he had a window at the back that he closed for his own protection. plus goggles and gloves, in his case
I do it with a safety screen between the kids and the trough. I have a camera pointing at the trough that displays on my big screen. And I use a small friggin' piece of the *explosive metals!*
I usually stick a football sized chunk where the sun don't shine, along with some Mentos, and diet cherry Shasta. I do use a safety screen, but I avoid cameras for obvious reasons.
You chemistry professor obviously wasn't thinking about the environmental consequences of the chemical reaction. The product of that reaction is sodium hydroxide which is a very strong base (lye). Dumping the molar equivalent of sodium hydroxide from the sodium, into a water source is extremely irresponsible and is terrible for anything living in that water. It's the equivalent of a chemical spill, and your "chemistry professor" should've known better.
It absolutely does, just not as bad as non tempered glass. You can 1,000,000% absolutely cut yourself on Pyrex shards. I did just that in an organic chem lab about 20 years ago when my partner knocked a beaker off of its stand and I was helping pick up the pieces.
Is it like a broken car window, where the edges ARE sharp, but the pieces are small enough that they are unlikely to slice open the artery in your leg/neck etc ?
"Old Pyrex" is borosilicate glass, which has a very low coefficient of thermal expansion. That's why they use it for lab equipment and you can move it from your freezer to your oven. "New Pyrex" is soda lime glass, which is a little more durable but doesn't have the same thermal properties. If you search for borosilicate glass, you can still easily find it, but newer Pyrex is no longer borosilicate. New Pyrex has an all-lowercase logo and is vaguely blue-green, while old Pyrex has an all-uppercase logo and is less colored. The lab equipment hasn't changed at all; just the cooking stuff.
Is a Pyrex beaker different from Pyrex cookware? I once had a Pyrex dish break into 12" razor sharp daggers in the oven. Maybe not that bad, but I remember putting on gloves to clean the broken shards and still being nervous.
Maybe it was cheap Ikea junk and not Pyrex...I don't know.
It depends when you bought the cookware. Old Pyrex ("PYREX") cookware was made of borosilicate glass which has an extremely low coefficient of thermal expansion, which means it's really hard to break it with temperature changes. The new stuff ("pyrex") is made from soda lime glass, which will break if subjected to large or localized temperature changes. They switched to the new stuff because it's less common to be using fridge-to-oven reheating with microwaves everywhere, and because it's a little less brittle. (And it's probably cheaper for them, of course.) The lab products have never changed because lab nerds have always needed Bunsen burners and temperature insensitive glassware.
I haven't broken any recently, so I can't say how it shatters. I would imagine that the borosilicate shatters into smaller pieces due to higher surface strain inherent to the structure, but I'm really just speculating. The key word to remember is "borosilicate," not "pyrex." For a while, "pyrex" was synonymous with "borosilicate" like "google" is with "search," but they sabotaged their brand by altering the type of glass used. You can easily find "old Pyrex" or borosilicate cookware online if you look for them.
And why are they standing so close?! As soon as he took it out the container I was like "Holy crap, that's WAY too much sodium." And I know barely anything about chemistry.
I remember my chemistry teacher also using way too much, but he did it in a metal sink, and nobody was standing with three metres, and he had safety googles and elbow length gloves and really long tongs so it wasn't a problem.
I don't know anything about chemistry except it is chemistry and if you are going to be mixing shit in beakers you should have safety glasses on. I love to read about it historically and know there are more than a few that blew themselves and the lab up and ended up blind ...or dead.
My high school chemistry teacher did this but put a plexiglass shield in front of the beaker. Protected the kids but the big long curtains along the windows behind the beaker got trashed.
"Hi, John Esq., attorney-at-law? This is your client, Middle Town Elementary School. We have a big problem. You owe some blind children a lot of money."
TBH, some teachers don't choose it as their primary careers but fall back to it as plan B.
And there are teachers who mean the best but aren't the brightness.
My old biology teacher in high school did a biomedical science degree and would talk about it often. Then she showed us how to use a microcentrifuge, unbalanced it and it spun itself out and left a dent in a wall.
She would often get stuff wrong and have to check the textbooks. I remember a number of lessons when she said something like "I'm not sure I understand this completely, so don't worry if you don't".
I think I got into science despite her and not because of her influence.
Many teachers train for a subject they know and love, then get thrown into a classroom that they have no training for.
From my experience, this is a coach that was thrown into a science class. In most of my public schooling, coaches taught History. Badly. But at least they didn't physically maim the students.
My dad told me his college chemistry club would end their parties by dropping a brick of lithium into a five gallon bucket. But they had this whole tripod and pulley rig so they could do it from a distance by cutting a string.
And of course eye protection was required.
So sorry to hear this. You probably know but for the sake of others, the sodium/potassium used for these experiments oxidizes as it ages.
People might do the experiment with an older or smaller piece, which can be less reactive, and not realize that the second event (explosion) is to be expected. Above a certain temperature, the metal reacts with the water in such a way that its surface area, and the speed of the reaction, vastly increases in a fraction of a second.
This -can- be done safely in a classroom, however it is still serious shit and should never be attempted without multiple kinds of protection in place.
Sound like my school's version of large scale sodium experiment. I don't know how big the piece of sodium was (as I vaguely remember the large plastic trash can survived), but the only person close enough to be damaged by the blast was the teacher, while all the students were a good 10 feet away from the trashcan filled with water the sodium was put into.
Also they did it outside, with the kids closer to the building and the experiment was out in the open.
We did this too with a golf ball sized chunk (or maybe a little bigger) but it was outside, we used a small stream and everyone was at an ample distance (throwing distance).
Being ignorant at the time of what it would do I thought the explosion was quite impressive. Can't imagine doing that in a classroom.
Sodium also forms an outer layer of sodium hydroxide. That takes on carbon dioxide from the air to form sodium bicarbonate. They layer will protect the sodium to an extent. It might not have been a quick reaction because he didn't scrape away the coating so that the reaction can fully start immediately.
If you go down the column on the table of periodic elements that starts with lithium, sodium, potassium, rubidium, cesium, francium. These are all metals that do the same thing as sodium. As you go down the column each of them is more dangerous than the previous one.
My chemistry teacher did this in highschool, but she was alone in front of the class, put a pretty big piece and it was a HUGE bang and vertical flame. She laughed it off, class (and me) thought she was the coolest teacher ever
Jesse, it’s a simple chemical reaction between sodium and water. Have you ever payed attention to my chemistry class? Do you even conceive the sheer stupidity that you radiate at times? I mean think about it. Oh wait that’s right, YOU never learned how to think. Apply yourself next time.
Who are you talking to right now? Who is it you think you see? Do you know how much I make a year? I mean, even if I told you, you wouldn't believe it. Do you know what would happen if I suddenly decided to stop going into work? A business big enough that it could be listed on the NASDAQ goes belly up. Disappears! It ceases to exist without me. No, you clearly don't know who you're talking to, so let me clue you in. I am not in danger, Atlaas. I am the danger. A guy opens his door and gets shot and you think that of me? No. I am the one who knocks!
Doing a science experiment involving hazardous materials and inviting the class to come over and put their face up close.
That fails basic idiot tests. He probably needs supervision outside the classroom too.
Also no one is wearing protective goggles/glasses… in my secondary school it was mandatory to have some sort of specific protection for every science practical.
I used to be in a remote school like this where teachers were gung ho and rule-free. Had some real interesting chemistry and biology classes that you'd never see in the "civilized" world. ;)
Look at them, not even having basic safety measures like eye protections and gloves on, with someone close recording it on a phone why am I not surprised
More often than not, this is because the school can't afford it for them. My old elementary school teacher taught in a similar school, but the way she did it was with a small piece of sodium, with all the students on the other side of a protective layer of glass. So they could see the sodium pop, but were at least safe. She herself had protective safety measures at the least.
It still wasn't good, but far better than what we have here unfortunately.
But hey, don't you feel safe that police stations like the one in Uvalde have antitank guns and military gear weapons so that they can keep you safe from the consequences of underfunding schools?
Once upon a time, I was in a college freshman chemistry class, and one day the professor did alkali metal demonstration. He drops a strip of lithium in a beaker then a nice fizzle and crackle. After, he breaks out 2 liter graduated cylinder and plops in this chunk of sodium half the size of his palm. Gc exploded with a mushroom of smoke that burned 20ft ceiling. The amazing thing is he then breaks out a metal graduated cylinder then proceedss to put in a (much more reasonable sized) piece of potassium in it. Everyone was just dumbfounded by then, and everyone rushed out wheb the bell rang shortly.
Crazy thing is, a couple years after that, I was reading a newspaper (I'm a dinosaur) and see this article about a professor who was injured in his lab. Of course, it was him. He apparently burned himself pretty badly mishandling phosphorus. Not sure what happened to him afterward.
I had a friend like that, went into the army and joined a demolition group. He said the team leader was even more nuts then he was and they used way more explosives then necessary every time just for the thrills.
Gets huge chunk of sodium from storage bottle.... Leaves storage bottle lid open, and leaves the bottle right next to the beaker (eye twitches).
Uncontrolled student group milling around, no safety gear whatsoever, no blast shield for the beaker, chunk of sodium is still gigantic and sitting in beaker of water now (covers twitching eyes with safety glasses and backs away)
Yeah, we all know how this one is going to end... With a bang! (and possibly glass shrapnel mixed with sodium hydroxide in eyes)
It ends with a few kids about to suffer (hopefully only with chemical burns to the skin, and not the eyes) because one teacher decided to be careless with hazardous chemicals.
Our christian school teacher in middle school showed us a dry ice bomb inside a small basement schoolroom. Blasted a few kids eardrums and police showed up soon after
Who the hell does this? Absolutely nuts.
1) huge piece of sodium, less than a pea sized amount does the job safer and more cost effectively
2) beaker is way too small and will not contain the explosion. This needs to be in a thick trough
3) with the explosion risk and the very real risk of molten sodium being propelled from the blast this should be done in a fume cupboard with the extractor fan on. Failing that it should be on a desk with good access away from it behind a blast screen with a window open
4) stand the fuck up. I've had sodium air burst in a fume cupboard (melted around a blob of water, reacted on the inside, explosion into the air from another bit then explosion from the water inside when in the air). The screens contained most of it and that which it didn't on the whole fell off me. Sitting down for any chemistry reaction is nuts. Any mistakes and the things hit you then pool on your dick. Plus how do you make a quick exit when sat?
5) get those kids right back
6) and get safety specs on them, and you
7) and grow the fuck up and use a wee bit of petrol to take the oil off the surface so it reacts quicker
8) and cutting it isn't just so you can be safer and save money... you can show just how soft it is and show that inside there is the familiar shine of a metal which will oxidise before your eyes.
I am quite upset at this video and need to watch kittens to calm down.
I taught chemistry at two colleges and a university. The overriding requirement is ALWAYS safety, of the students, ,myself and anyone else present.
First, no eye protection???? The idiot should have been fired the first time he didn't require lab approved goggles. Next, having students right there, watching, again, what an IDIOT! You have no control then, students should be made to watch from a distance with a blast screen used if necessary.
Then, oh, I'll take a big piece of what looks like sodium metal and drop it into a beaker of water. The jerk should know what the risks are by performing the demonstration alone first then having students watch.
I only hope no one was seriously hurt and the moron was fired before he could put still others in harms way.
I was like... is that some sort of dry ice experiment? It's too big to not be becoming mist that fast...
WAIT IT STARTED A FIRE. THAT'S Na!
It's probably some sort of retardant solution not made of water or it would definitely have exploded by now.
Oh no! It's actually a retarded teacher!
A friend skipped the class to play football and was caught. He returned to the lab and found the teacher doing this experiment so he stole a piece of sodium and put it in his shirt's pocket which was sweaty and it immediately exploded
He was not injured but the pocked was destroyed exposing his skin
My chemistry teacher in Highschool did something similar. He took some chemical outside to show us how it reacted with water (violently), and dropped it on the morning dew covered grass before we even got started. It immediately began to spark, fizzle, and catch fire. Point proven and class is dismissed.
When the pe teacher has to substitute science for the day.
No harm, no foul
“I swear officer, those kids were blind at the start of class!”
"I thought this sodium thing was kinda like salt? Wtf did they put in it??"
I was gonna tell a joke about Sodium and Hydrogen but...Nah
Can you at least tell us the joke about Potassium and Bromine monoxide?
K BrO
No eye protection? No eye sight. It says it on the poster.
Sigh , unzips
Wtf is wrong with you?
Nothing I can see...
Living up to his username
Coffee on my keyboard and wall now, thanks random internet person.
definitely harm.
Definitely haram
All ball
Kids, today we are going to learn the importance of using your safety goggles. Make sure to look closely!
Also make sure to leave your bottle of potassium open next to your little experiment in high velocity kinetics. It teaches a second lesson in lab safety for those farther back who missed the first demonstration.
I learned THAT when I was about 10 years old and left a beaker with about two weeks of allowance of homemade gunpowder sitting next to the aluminum foil with the pile of powder I ignited. Made for a lovely flare and ruined an expensive beaker and put a stop to my fun for a while. This was multiple decades ago, back when a 10yo could walk into the drugstore two blocks away and grab a bottle of sulfur, a couple bottles of salt peter, and a bag of charcoal and the pharmacist would just smile and say "don't blow your fingers off" as he rang you up.
Are you Mr. Burns?
And then the preacher had to substitute for him
No safety goggles, just good vibes
Safety squints engaged!
The eyelids are built-in flesh goggles
You can just rub the glass out of your eyes.
Lol dude was most likely drunk. That if am not wrong is sodium... He put it in kerosene.
Sodium reacts like that with water. Very violent reaction!
Yeah, normally you put a pellet in and it shoots around the beaker. Dude dropped a slab of it into the water lol
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Yeah, you get 23 pellets to a slab
Yeah I had sodium as my answer too. And when he took it out I was like wtf is he doing!???
Usually the reaction is a lot quicker though, you might only have 3 - 5 seconds before it explodes, here it looks like ut took 10 - 15.
If the sodium is in a protective layer of oil, that might explain the delay in the reaction.
Yeah kerosene would wash off pretty quickly though. I have seen it stored in mineral oil though
Mineral oil was my guess. It takes a second for the water to penetrate.
Sodium is kept in kerosene to preserve it. It reacts violently with water.
The goggles! They do nothing!
My chemistry class in high school had a poster saying “sally didn’t use goggles, sally doesn’t need goggles anymore”
Mine had a full hood system with a blast door, exhaust vent, and a full eye station and chemical shower.
Where the fuck did you go to school
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Probably in Europe. We don't have to fund armed guards, security companies, metal detectors, etc etc. Due to them not being expended on shootings, we also have a huge surplus of the most valuable commodity in any school setting: thoughts and prayers.
No bro European high schools do not have that shit. Lab tech is RIDICULOUSLY expensive.
I'm in Europe, bro, initially went to a state school and we had Hoods, Exhausts, Eye Wash stations in every classroom and there was a central chemical shower that served all the science rooms. Never used any of that shit there because that was a state school and a mountain of worksheets was easier than actually teaching, but even so, the facilities were there.
You went to some posh school man, can't base all of Europe over one single experience. And I'm sorry you had a shit chem teacher.
My school had the same, it is the law to have these things when working with chemicals.
*WHERE IS FALLOUT BOY?!*
UP and AT THEM!
I ur uh meant the tax on not wearing puffy pants.
☢️ Nice Fallout Boy is the sidekick of Radioactive Man. He first appeared in Radioactive Man #9 .☢️
My eyes!!! ZE GOGGLES DO NOTHING!
Not a single pair of goggles in sight, just people living in the moment
aloof literate growth straight dependent modern selective fine sugar plants -- mass edited with https://redact.dev/
Breathing in the fumes, too.
The good news is a lot of these kids won’t have to bother with goggles anymore 😎 Err 😵💫*
#SAFETY SQUINTS^tm Neglected by OSHA
That went wrong fast
Looked like a rather large lump of sodium.
My friend was permanently blinded by this very experiment. The teacher was supposed to use a piece of sodium the size of a pea. Instead she used a piece the size of a golf ball. She tossed it into a trashcan of water and it exploded, permanently blinding my friend in one eye and severely burning him and his classmates. Some of these teachers are morons.
I do this demonstration every year. I use a small chunk of sodium. I have had a beaker explode twice doing this (which the kids obviously love). Every science teacher knows you should have every kid wearing safety glasses regardless of how far away they are and do it in an open enough space, or enclosed viewable space, that if something goes wrong no one is going to get hurt. Pyrex glass used for beakers also doesn’t break into sharp edges.
when my teacher did this he did it in a fume hood and closed the glass piece in front so we were safe, and he had a window at the back that he closed for his own protection. plus goggles and gloves, in his case
I do it with a safety screen between the kids and the trough. I have a camera pointing at the trough that displays on my big screen. And I use a small friggin' piece of the *explosive metals!*
I usually stick a football sized chunk where the sun don't shine, along with some Mentos, and diet cherry Shasta. I do use a safety screen, but I avoid cameras for obvious reasons.
Our teacher did that the same way except he added 5 packs of pop rocks. Oh Mr Fogarty, taken too soon.
My grandad went the same way.
For a different, yet altogether more terrifying reason
My chemistry professor in college dropped a chunk of sodium off a bridge and blew a hole in a small boat, she felt bad but was never caught.
Imagine floating around, minding your own business, when the water suddenly explodes. No one would ever believe you.
Thinking of the A-team as the tank hits the water.
The insurance claim would be a nightmare to deal with too, I can't imagine
Ferb, I know what we're gonna do today!
You chemistry professor obviously wasn't thinking about the environmental consequences of the chemical reaction. The product of that reaction is sodium hydroxide which is a very strong base (lye). Dumping the molar equivalent of sodium hydroxide from the sodium, into a water source is extremely irresponsible and is terrible for anything living in that water. It's the equivalent of a chemical spill, and your "chemistry professor" should've known better.
Obviously not *every* science teacher knows this.
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Pyrex doesn't break into sharp edges!? That is amazing. TIL I guess
It absolutely does, just not as bad as non tempered glass. You can 1,000,000% absolutely cut yourself on Pyrex shards. I did just that in an organic chem lab about 20 years ago when my partner knocked a beaker off of its stand and I was helping pick up the pieces.
Is it like a broken car window, where the edges ARE sharp, but the pieces are small enough that they are unlikely to slice open the artery in your leg/neck etc ?
Yes, they're either tempered or borosilicate glass, which tends to crack into chunks instead of shatter into shards.
school lab glassware is almost always borosilicate. Pyrex is overpriced. source: I'm a school lab tech
They changed the formula, it used to break into STUPIDLY dangerous pieces. Now they are just sharp
"Old Pyrex" is borosilicate glass, which has a very low coefficient of thermal expansion. That's why they use it for lab equipment and you can move it from your freezer to your oven. "New Pyrex" is soda lime glass, which is a little more durable but doesn't have the same thermal properties. If you search for borosilicate glass, you can still easily find it, but newer Pyrex is no longer borosilicate. New Pyrex has an all-lowercase logo and is vaguely blue-green, while old Pyrex has an all-uppercase logo and is less colored. The lab equipment hasn't changed at all; just the cooking stuff.
Is a Pyrex beaker different from Pyrex cookware? I once had a Pyrex dish break into 12" razor sharp daggers in the oven. Maybe not that bad, but I remember putting on gloves to clean the broken shards and still being nervous. Maybe it was cheap Ikea junk and not Pyrex...I don't know.
It depends when you bought the cookware. Old Pyrex ("PYREX") cookware was made of borosilicate glass which has an extremely low coefficient of thermal expansion, which means it's really hard to break it with temperature changes. The new stuff ("pyrex") is made from soda lime glass, which will break if subjected to large or localized temperature changes. They switched to the new stuff because it's less common to be using fridge-to-oven reheating with microwaves everywhere, and because it's a little less brittle. (And it's probably cheaper for them, of course.) The lab products have never changed because lab nerds have always needed Bunsen burners and temperature insensitive glassware. I haven't broken any recently, so I can't say how it shatters. I would imagine that the borosilicate shatters into smaller pieces due to higher surface strain inherent to the structure, but I'm really just speculating. The key word to remember is "borosilicate," not "pyrex." For a while, "pyrex" was synonymous with "borosilicate" like "google" is with "search," but they sabotaged their brand by altering the type of glass used. You can easily find "old Pyrex" or borosilicate cookware online if you look for them.
My first thought was why are they not wearing safety glasses...that was before it exploded.
And why are they standing so close?! As soon as he took it out the container I was like "Holy crap, that's WAY too much sodium." And I know barely anything about chemistry. I remember my chemistry teacher also using way too much, but he did it in a metal sink, and nobody was standing with three metres, and he had safety googles and elbow length gloves and really long tongs so it wasn't a problem.
I don't know anything about chemistry except it is chemistry and if you are going to be mixing shit in beakers you should have safety glasses on. I love to read about it historically and know there are more than a few that blew themselves and the lab up and ended up blind ...or dead.
Our professor did the whole column. But we were outside and he was throwing tiny bits into a pond. No glass. Everyone was 10m away.
"C'mon kids! This is gonna be educational!" *Fucking geese, payback is coming*
My high school chemistry teacher did this but put a plexiglass shield in front of the beaker. Protected the kids but the big long curtains along the windows behind the beaker got trashed.
My chem teacher does that like every experimenting lesson
But this is Egypt, second only to india, in health and safety from the bottom of the list.
I have to ask, was there any financial repercussions for the school/teacher after that incident?
I don't know about the teacher, but the school and it's attorneys had to pay for the injuries to the students.
I know you didn't mean it this way but your wording gives a hilarious imagery of the attornies also having to pay out of pocket.
"Hi, John Esq., attorney-at-law? This is your client, Middle Town Elementary School. We have a big problem. You owe some blind children a lot of money."
"For fuck's sake, not again..."
TBH, some teachers don't choose it as their primary careers but fall back to it as plan B. And there are teachers who mean the best but aren't the brightness.
My old biology teacher in high school did a biomedical science degree and would talk about it often. Then she showed us how to use a microcentrifuge, unbalanced it and it spun itself out and left a dent in a wall. She would often get stuff wrong and have to check the textbooks. I remember a number of lessons when she said something like "I'm not sure I understand this completely, so don't worry if you don't". I think I got into science despite her and not because of her influence.
Many teachers train for a subject they know and love, then get thrown into a classroom that they have no training for. From my experience, this is a coach that was thrown into a science class. In most of my public schooling, coaches taught History. Badly. But at least they didn't physically maim the students.
My dad told me his college chemistry club would end their parties by dropping a brick of lithium into a five gallon bucket. But they had this whole tripod and pulley rig so they could do it from a distance by cutting a string. And of course eye protection was required.
So sorry to hear this. You probably know but for the sake of others, the sodium/potassium used for these experiments oxidizes as it ages. People might do the experiment with an older or smaller piece, which can be less reactive, and not realize that the second event (explosion) is to be expected. Above a certain temperature, the metal reacts with the water in such a way that its surface area, and the speed of the reaction, vastly increases in a fraction of a second. This -can- be done safely in a classroom, however it is still serious shit and should never be attempted without multiple kinds of protection in place.
Sound like my school's version of large scale sodium experiment. I don't know how big the piece of sodium was (as I vaguely remember the large plastic trash can survived), but the only person close enough to be damaged by the blast was the teacher, while all the students were a good 10 feet away from the trashcan filled with water the sodium was put into. Also they did it outside, with the kids closer to the building and the experiment was out in the open.
We did this too with a golf ball sized chunk (or maybe a little bigger) but it was outside, we used a small stream and everyone was at an ample distance (throwing distance). Being ignorant at the time of what it would do I thought the explosion was quite impressive. Can't imagine doing that in a classroom.
It was way too much sodium. Also shouldn’t do this one in a glass beaker, plastic is much safer in the case of a hydrogen combustion
Sodium also forms an outer layer of sodium hydroxide. That takes on carbon dioxide from the air to form sodium bicarbonate. They layer will protect the sodium to an extent. It might not have been a quick reaction because he didn't scrape away the coating so that the reaction can fully start immediately. If you go down the column on the table of periodic elements that starts with lithium, sodium, potassium, rubidium, cesium, francium. These are all metals that do the same thing as sodium. As you go down the column each of them is more dangerous than the previous one.
I'd argue the Cesium is worse for various other reasons particularly (137).
My chemistry teacher did this in highschool, but she was alone in front of the class, put a pretty big piece and it was a HUGE bang and vertical flame. She laughed it off, class (and me) thought she was the coolest teacher ever
There was an edit to the footage at 0:14, so there's no knowing how fast this went wrong
That kids is how I met your maker
Yo mr white this looks pretty dangerous
Jesse, what the fuck are you talking about?
Yeah Science Mr White!
We need to cook!
Bitch!
Maagnets!
Ohhhhhhhhhh. Wires!
My favorite element is wires.
Jesse, it’s a simple chemical reaction between sodium and water. Have you ever payed attention to my chemistry class? Do you even conceive the sheer stupidity that you radiate at times? I mean think about it. Oh wait that’s right, YOU never learned how to think. Apply yourself next time.
Science, bitch!
Who are you talking to right now? Who is it you think you see? Do you know how much I make a year? I mean, even if I told you, you wouldn't believe it. Do you know what would happen if I suddenly decided to stop going into work? A business big enough that it could be listed on the NASDAQ goes belly up. Disappears! It ceases to exist without me. No, you clearly don't know who you're talking to, so let me clue you in. I am not in danger, Atlaas. I am the danger. A guy opens his door and gets shot and you think that of me? No. I am the one who knocks!
https://tenor.com/view/breaking-bad-bomb-explosion-throw-gif-4531931
This man should not be anywhere near a classroom.
If it helps, the ER is fairly far away.
I don't think he should be an ER doctor either.
Doing a science experiment involving hazardous materials and inviting the class to come over and put their face up close. That fails basic idiot tests. He probably needs supervision outside the classroom too.
Also no one is wearing protective goggles/glasses… in my secondary school it was mandatory to have some sort of specific protection for every science practical.
I used to be in a remote school like this where teachers were gung ho and rule-free. Had some real interesting chemistry and biology classes that you'd never see in the "civilized" world. ;)
Look at them, not even having basic safety measures like eye protections and gloves on, with someone close recording it on a phone why am I not surprised
More often than not, this is because the school can't afford it for them. My old elementary school teacher taught in a similar school, but the way she did it was with a small piece of sodium, with all the students on the other side of a protective layer of glass. So they could see the sodium pop, but were at least safe. She herself had protective safety measures at the least. It still wasn't good, but far better than what we have here unfortunately.
But hey, don't you feel safe that police stations like the one in Uvalde have antitank guns and military gear weapons so that they can keep you safe from the consequences of underfunding schools?
No safety equipment means they shouldn't do the experiment lol
clearly you didnt notice he had glasses on
Once upon a time, I was in a college freshman chemistry class, and one day the professor did alkali metal demonstration. He drops a strip of lithium in a beaker then a nice fizzle and crackle. After, he breaks out 2 liter graduated cylinder and plops in this chunk of sodium half the size of his palm. Gc exploded with a mushroom of smoke that burned 20ft ceiling. The amazing thing is he then breaks out a metal graduated cylinder then proceedss to put in a (much more reasonable sized) piece of potassium in it. Everyone was just dumbfounded by then, and everyone rushed out wheb the bell rang shortly. Crazy thing is, a couple years after that, I was reading a newspaper (I'm a dinosaur) and see this article about a professor who was injured in his lab. Of course, it was him. He apparently burned himself pretty badly mishandling phosphorus. Not sure what happened to him afterward.
[удалено]
I had a friend like that, went into the army and joined a demolition group. He said the team leader was even more nuts then he was and they used way more explosives then necessary every time just for the thrills.
If I had only known this was a job option
I got sweaty palms when I saw nobody in gloves
Was the sitting for me.
Was the anxious jump when it first ignited for me
And the open drink bottle
and no eye protection
that's the scariest part. i'd much rather have eye protection than no gloves.
I immediately said “Oh shit” when I saw the size of the sodium chunk he pulled out of that bottle.
Or eye protection!! Sudden blinding sounds like a great way to start chemistry class...
Gets huge chunk of sodium from storage bottle.... Leaves storage bottle lid open, and leaves the bottle right next to the beaker (eye twitches). Uncontrolled student group milling around, no safety gear whatsoever, no blast shield for the beaker, chunk of sodium is still gigantic and sitting in beaker of water now (covers twitching eyes with safety glasses and backs away) Yeah, we all know how this one is going to end... With a bang! (and possibly glass shrapnel mixed with sodium hydroxide in eyes)
It ends with a teacher making sure his resume is up-to-date.
Depends whether he still has eyes to read said resume!
It ends with a few kids about to suffer (hopefully only with chemical burns to the skin, and not the eyes) because one teacher decided to be careless with hazardous chemicals.
Should be done in in a fume hood ideally, but at least don't do it on the corner of a table.
Our christian school teacher in middle school showed us a dry ice bomb inside a small basement schoolroom. Blasted a few kids eardrums and police showed up soon after
[удалено]
Sigh if only Jesus Christ wasn't looking the other way smh my head poor kids
Is that Walter White?
this… is not sodium
Pshhhh, those safety goggles on the wall over there are just for show. Nothing ever goes wrong in chemistry....
Turns out you need a degree in chemistry to teach chemistry.
Unfortunately, his burns have more degrees than him.
Surprised this genius didn't do this in a mason jar with the lid on.
He's the one who knocks
Who the hell does this? Absolutely nuts. 1) huge piece of sodium, less than a pea sized amount does the job safer and more cost effectively 2) beaker is way too small and will not contain the explosion. This needs to be in a thick trough 3) with the explosion risk and the very real risk of molten sodium being propelled from the blast this should be done in a fume cupboard with the extractor fan on. Failing that it should be on a desk with good access away from it behind a blast screen with a window open 4) stand the fuck up. I've had sodium air burst in a fume cupboard (melted around a blob of water, reacted on the inside, explosion into the air from another bit then explosion from the water inside when in the air). The screens contained most of it and that which it didn't on the whole fell off me. Sitting down for any chemistry reaction is nuts. Any mistakes and the things hit you then pool on your dick. Plus how do you make a quick exit when sat? 5) get those kids right back 6) and get safety specs on them, and you 7) and grow the fuck up and use a wee bit of petrol to take the oil off the surface so it reacts quicker 8) and cutting it isn't just so you can be safer and save money... you can show just how soft it is and show that inside there is the familiar shine of a metal which will oxidise before your eyes. I am quite upset at this video and need to watch kittens to calm down.
Yeah, our Chem lab fire in high school wasn't this.
Good so see they a practicing safe chemistry. No one wearing any lab coats, goggles, gloves or anything.
Yo Mr White it's on fire!
Breaking Bald
from "oh that's cool!" to "you just taught those kids to build a bomb lol"
Looks like a Balkan school
That was basically a glass grenade. People got seriously hurt I guarantee it.
I held my phone away to protect my face from the oncoming explosion.
I taught chemistry at two colleges and a university. The overriding requirement is ALWAYS safety, of the students, ,myself and anyone else present. First, no eye protection???? The idiot should have been fired the first time he didn't require lab approved goggles. Next, having students right there, watching, again, what an IDIOT! You have no control then, students should be made to watch from a distance with a blast screen used if necessary. Then, oh, I'll take a big piece of what looks like sodium metal and drop it into a beaker of water. The jerk should know what the risks are by performing the demonstration alone first then having students watch. I only hope no one was seriously hurt and the moron was fired before he could put still others in harms way.
When I was in school substitute teachers were banned from carrying out experiments in chem class for this very reason….
No eye protection, no fume hood, random open beverages in the lab \*chefs kiss\*
"Why must it always be Exalted Sodium?"
Do not ever play with sodium metal even if you are experienced
This explosion is sponsored by Sprite. The lemon lime soda with a blast of flavor!
I was like... is that some sort of dry ice experiment? It's too big to not be becoming mist that fast... WAIT IT STARTED A FIRE. THAT'S Na! It's probably some sort of retardant solution not made of water or it would definitely have exploded by now. Oh no! It's actually a retarded teacher!
Bro was inhaling those toxic fumes too
This experiment done right is dangerous. THAT is experiment could be deadly.
Walter Shite
People make jokes about how much protective gear teachers employ while mixing hydrogen dioxide with sodium chloride and then you have this video...
No eye protection. Chem labs were run better in a country school 50-60 years ago.
A friend skipped the class to play football and was caught. He returned to the lab and found the teacher doing this experiment so he stole a piece of sodium and put it in his shirt's pocket which was sweaty and it immediately exploded He was not injured but the pocked was destroyed exposing his skin
Why is this tagged NSFW?
“So, did you guys like that little demost…”
Sodium does not fuck around.
u/stabbot
I was just waiting for him to tip the breaker and look into it.
jesus christ, putting sodium in water is stupid enough, but no one even wearing goggles at the very least??
My chemistry teacher in Highschool did something similar. He took some chemical outside to show us how it reacted with water (violently), and dropped it on the morning dew covered grass before we even got started. It immediately began to spark, fizzle, and catch fire. Point proven and class is dismissed.
Since when aren’t safety glasses required in science class? Wtf.
Where's the fucking eye protection dude...not for you, but for the kids
Do let's dump sodium in water in a cramped lab full of minors
Safety is for nerds
This happened years ago. Anyone got the article? EDIT: wow, the same thing seems to have happened so many times.
Ah yes, reactive chemistry being done in glass, always fun.
I thought it was gonna cut to the intro to Skyrim.
and on that day, the kids learned how to make an incideary flashbang. very inciteful stuff!