Making Bromine - A Deadly Red Liquid Element
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- Опубликовано: 30 июн 2024
- In this video I make a lot of elemental bromine from potassium bromide using the manganese heptoxide method while absolutely adoring bromine's color and having my garage brominated.
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UPDATE: I somehow miscalculated the amount of bromine that I made and it should be 27g higher, making the yield 80% instead of 75%
This video is for educational purposes only, please don't repeat what you see in it.
Also, excuse me for my poor speaking, english is not my native language so I have some trouble speaking it, in case you don't understand something there are always subtitles made by me.
0:00 Intro
3:56 Makng Bromine Using Manganese Heptoxide
9:24 Puryfing The Bromine
12:17 Experiments With Bromine
14:50 Outro
#chemistry
#experiment
#beautiful
#demosntration
#science
#fire
#reaction
#red
![Megan Thee Stallion - Rattle [Official Audio]](http://i.ytimg.com/vi/qY6qwqVCsww/mqdefault.jpg)
Just as Tom finished the cube, you start it. I have been blessed.
This.
I just subscribed and I have to say I’m glad i found another chemistry channel to binge watch
Im just starting the video and when he said he needs bromine for another project and not for play.... I knew it. He's gonna take on... _The Cube_.
The alumium plus bromine reaction makes anhydrous aluminum bromide which is extremely useful for organic chemistry as well. You can also use it to make lithium aluminum hydride from lithium hydride in THF. ❤️
It gave me a chill when he had that mixture of bromine and sulfuric in the seperatory funnel and shook it. Very nice video.
14:41 I must’ve been living under a rock (or under a deserted stone bridge in some forgotten hinterland) because I want/need to know more about the glass ampule. I’ve seen people use those sealed glass ampules to store compounds numerous times. However, I never understood how those ampules were made. I thought about it, but for some reason missed using the lowly test tube to make the storage vessel. I had assumed the ampules were make from sections of glass tubing (which, I suppose, is also doable).
Excellent video! Bromine frightens me. I can’t wait to never try this bromine production method myself. 😂
test tubes are just much cheaper that's why they're used. You could use anything that's made of glass as glass melts and becomes a red glowing goop
This was a decent bromine video. Thank you for the explanation as to what contaminants can end up doing other methods. I can only imagine the clean up after this experiment. I do hope to see the experiment you use the bromine in! ❤
Adding this to the collection of bromine cooking content!!!
Love your accent and humour.
i firstly thought he is white pakistani but when i saw "ocet spirytusowy" i knew he is Polish
@@wreck_grimes6754wtf is a "white Pakistani"?
@Amateur Chemistry I saw that you wanted to know the overall reaction. Well, like you said, the potassium permanganate forms permanganic acid when reacting with sulfuric acid (since there was quite a good amount of water added to the boiling flask, no manganese heptoxide could be formed by the dehydration of permanganic acid) which oxidizes the bromide ions to elemental bromine and if you think carefully enough will see that some sulfuric acid is needed to form manganese sulfate and potassium sulfate or even potassium bisulfate if you added an excess of sulfuric acid.
10 KBr + 2 KMnO4 + 8 H2SO4 = 5 Br2 + 2 MnSO4 + 6 K2SO4 + 8 H2O
Thank you very much, I thought that manganese heptoxide is formed because the water present is still a very concentrated solution of sulfuric acid that might dehydrate the parmanganic acid but it turns out I was wrong
@@Amateur.Chemistry No worries! I´m happy to help!
Honestly, it's just good to know that there isn't any of that angry boom-juice actually being made 😅
bromine dissolved in chloroform works great in reactions. make sure to shield it from light though, as it may be able to react with the solvent rather than the reactant otherwise.
I reacted potassium bromide with nitric acid in a report and distilled it into a vessel in ice.
The byproduct was potassium nitrate.
Passing chlorine into KBr was inefficient.
I did it outdoors.
It would be very fun to watch the cleanup process!
All hail the cube, hype
As this question fits the deadly type of compound you dealt with here: How strong is the fan in your fumehood / how many m³/h can it push through and how big is the opening of your fume hood?
same interest here
My fumehood fan can push around 250m³/h of air through, and my fumehood opening is 160 cm wide, and its height can be adjusted by a winch so that when I am working with dangerous stuffs I make the opening small to get more vapors out
@@Amateur.Chemistry Thank you, very smart design as well!
Happy new year, madman.
Happy new year!
Remarkable !!!
If there's a lot of water, it shouldn't go to manganese heptoxide at all, permanganic acid is already an oxidizer itself, it is get reduced either to Mn2+ (manganese sulfate in this case) or Mn4+ (black insoluble manganese dioxide). You could use diluted h2so4, it works too, and don't overheat the solution while dissociating like concentrated. The reaction itself is exothermic and more heat == slower addition should be or more escaped water will be. More water in bromine == more conc. h2so4 to use to dry it.
I used to collect bromine to the flask with decent amount of conc. h2so4, so that drops of bromine pass through it, dry to some extent and be unable to escape as a vapor.
I know its a lot of bromine but in retrospective do you think that 4.7 molar equivalents could make enough cubane to be even visable with all the purifycations and probably fails?
You made the Br in Breaking Bad, next is the Barium.
Please make a video making magnesium metal from magnesium chloride using electrolysis
Where did you get all your lab equipment? I was thinking of starting my own lab
Hmm, he's making bromine how swee-- OH MY GOD HE'S GONNA DO THE CUBE
4:43 Did you say engine grease? Is it good for ground glass joints? What is it and where can I get it?
if you want cheap bromine you can only get it from sea salt, there is 2 kg per ton, and a ton of sea salt costs 60 bucks. But you would have to get all the Na and Mg from it by electrodeposition first , for which you need some industrial equipment. Not very complicated if you know how to use CNC routers and have solar panels. Otherwise you would have to order from India and pay about 6 bucks per kilogram for KBr, 98% pure. But if you leave near sea - sea salt is free if you just leave salty water evaporating on open air. You might wonder, why someone would need that much bromine? Well, it is a main ingredient of zinc-bromide flow battery which is very efficient and 20 times more lasting than lithium
No manganese heptoxide is formed as long there is still water in the mixture.
It's just the permanganate that oxidizes the hydrogen bromide.
The method is a big mess, not very environmental friendly because of the heavy metal compounds of manganese left behind. And it's a waste of hard to get and partially banned chemicals, too. Using fresh persulfate instead is perfectly legal and a much cleaner route with an even higher yield and cleaner product. The whole process also proceeds much quicker.
As a neutralizing agent a freshly prepared solution of sodium sulfite and hydroxide should be used to avoid the mess with precipitated sulfur.
It's advisible not to store more than 10 ml of bromine (dried and sealed in ampoules) at home to avoide horrifying accidents. And even small amounts shouldn't be stored in rooms where you live, sleep or eat.
Bromine should only be used in a fumehood or outside wearng a gas mask additionally and thick chemical protection gloves because it eats through thin nitrile gloves and skin within seconds. Breathing in even small amounts of bromine vapor can already cause deadly pulmonary oedema. Definitely no substance for beginners...
Hi! In what program are you editing your videos?
I'm curious about your clean up process. Seems like a lot of hazardous stuff you need to clean up. How do you do that?
As a catalyst are you gonna use barium carbonate or barium hydroxide for making cyclopentanone from adipic acid
I used barium hydroxide octahydrate
nice
Could sodium or potassium bromide react with HCl and H2O2 to make elemental bromine?
I gotta ask, were you freaking out shaking the Br2/H2SO4 mixture in the separatory funnel? It be pissing myself 😂
Forbidden hot sauce.
I dropped a flask with 100ml Bromine I had just distilled. It spread across the table like a wave and flew all down the front of my crotch and all down my legs. I live in Florida luckily we have a pool. I was in that pool in seconds. Only had a small Bromine burn on my hand and thigh.
I have a screenshot of some guy in a yt video pipetting Bromine onto his bare hand
Sulfur will dissolve in xylenes, that may help remove it from glass
Yeah, I used toluene to get rid of it but it took ages to dissolve
hot NaOH also works
@@hantrio4327 Also etches the glass.
hahaha the cubane meme 🤣🤣🤣
I wonder how bromine tastes like
16 H+ + 2 MnO4- + 10 Br- -> 8 H2O + 2 Mn2+ + 5 Br2.
no mn2o7 involved, it woudn´t be formed in aqueous solution. School chemistry but beatifull video. have a good evening and good slide into the new year.
That's crazy cuz I just did that practice problem while studying 🤣
Polska
dziwne że polskich komentarzy tu nie ma XD
no dziwne
gdyby to było na tiktoku to nasz cały naród zwołał przez ten potasu bromek@@fortytitan
Love this video, as usual!
I'm given to understand that you can safely store bromine under(!) concentrated sulfuric acid at ordinary freezer temperatures in containers you can actually open and close again without breaking glass and employing a blowtorch, respectively. @EdwardTriesToScience has more details on this at the end of ruclips.net/video/v0Hyqtsn7fA/видео.html
Thanks, I didn't know that, I might try it out sometime :)
are you from poland?
Yes
mom found the bromine tube
if bromine is toxic, then why does it look like soy sauce? 🤤
Forbidden soy sauce
bromine turns the skin yellow
Someone tag Nile and Tom
@NileRed @ExplosionsAndFire
Looks like blood 🥹
First
*never show your face. you end up like a legend mister metokur. never give in to social media appeasing narcissism. if your face is on the internet elsewhere delete if you really want to succeed*
make a beta carotene video and synthesize a pre-workout mix
5:20 It he or she? XD