some ignorant dumbass people always make criticism over your accent & so on...don't mind... am a chemical engineer & honestly saying, i haven't performed or seen many of these reactions even in my university .!! you are doing tremendous job bro... keep going...
Great demonstration all around. As a teenager in the early 1970's, I used hydrofluoric acid as an etchant for glass, but was not properly aware of the enormous dangers, and was stupidly lucky that I escaped injury. I would never use it again for that reason, but did enjoy seeing your video. Thank you for showing the very real and hellish wounds resulting from accidental exposure so that amateurs will leave it alone!
I've got NaCN dissolving gold and copper in a beaker with an aquarium bubbler on the other side of my bedroom, to practice doing the same thing on a much larger scale with a 60 lb bucket of so-called "paydirt". Some calcium hydroxide to make sure the pH stays high, an HCN monitor, and the usual goggles and gloves are plenty of safety gear for me. And I play with strong acids all the time, although very far away from cyanide. But HF scares the crap out of me and is one thing I won't touch with a 10-foot pole, unless it's made of Teflon. It's one thing to have a strong acid which, if you get it on your skin, will burn you if you don't wash it off right away. It's another thing to have a sneaky acid that actually stays mostly undissociated and acts just like another small polar molecule - H2O - to penetrate deep within your skin and into your bloodstream, corroding all the way down, slowly but painlessly over the next few hours as the F- ions that hit the bloodstream grab Ca and form insoluble CaF2, eventually messing up the heart's electrical rhythm and killing you by cardiac arrest.
@04:53 "in the production of Teflon" : hydrofluoric acid is not used to produce Teflon itself. It is actually used to perfom micro holes in the pan, such as the liquid Teflon (non sticky) can hang to it.
What a coincident, I just made a video on 'breaking bad' chemistry where I am covering a subject about hydrofluoric acid and its ability to dissolve human flesh. You made an awesome video, by the way, I've learned few new things about it from yours.
Just Half face respirator ? I was think doing some research with HF, even with full face respirator and hazard suit, i still feel a strong need of an antidote
We're dissolving rocks in our lab to get palynomorphs out of them its stored inside a fumehood we just use a faceshield and gloves when handling it no respirator whatsoever (but specialized fumehoods that can deal with HF by washing the gases its sucking up) we had an eastern european researcher in our lab for some time and he used to stir the rock/HF mixture with his bare fingers he always washed his hands thoroughly after and never had any problem with it (i wouldnt try that tho)
TheRolemodel1337 Bullshit. HF acid with concentration high enough to dissolve rocks can be extremely dangerous even if only a few drops contact the skin.
I would love to see some demonstrations of Caro's acid (H2SO5) on metals and organic substances like a chicken leg! Also Fluoroantimonic acid (H2F[SbF6]) would be very interesting if you can get your hands on some! You have a great channel, love your work 😎👍
I remember working with hydrochloric acid in science class. My group was too afraid to pour the acid even though HCL is virtually harmless if it gets on your hands. Just wash it off in a small period of time and you're good. The stuff smelled strongly of rubbing alcohol, and according to my teacher, pretty much all acids smell like that.
Fantastic video, i never knew any acid could affect glass, but i do now, love this channel, i love to learn in general but chemistry is exceptionally fascinating to me.
this acid have another use in the aluminium process, it is used to clean the surface of aluminium sheets before application of a protective laquer coat. the processed aluminium sheets are used in automotive industry and other industries in need of aluminium without an oxide layer, it's easier to get rid of the laquer coat than the oxide.
I did a tour of a large research lab which had a large bath of hydrofluoric acid which was used to remove the glass layer over micro chips. The chips where then run in an electron microscope. There where very strict precautions in the area and chemical showers etc. it was very cool to see the chip actually running. A lot of high security chips have wire grids and other features to stop such attacks.
Hydrofluoric acid almost fully dissociates. The reason of its low acidity is the formation of hydronium fluoride clusters, lowering the activity of the acid. The acidity varies very rapidly with concentration. Highly concentrated HF solutions are extremely acidic, due to less clusters and the formation of HF2- anions.
I used HydroFlouric Acid & Nitric Acid to Etch Titanium for Anodizing the Peacock Colors, but the Risk is too high and Niobium does not require Etching and cuts with Jewelers Saw exactly like soft Silver. I had to store the 2 acids in a tote packer with 2" of lime in case os spills & fumes.
I hate to be one of "those guys", trying to make you feel bad about your accent (which you shouldn't, regardless of what anyone says), but I lost it at "plastic wessels". Because Pavel Checkov. These guys know what I'm talking about...
Can you demonstrate making Lithium Fluoride salt from Hydrofluoric Acid. 2Li + 2HF = H2 + 2LiF. LiF is a salt used as a coolant in Thorium molten salt reactors. You might also demonstrate Beryllium Fluoride from Be + HF.
Fun fact: Calcium fluoride (flurospar) is so poorly soluble in water that is takes an extremely long time to even make any hydrofluoric acid with the method of pouring hydrochloric acid onto calcium fluoride.
Here, watch this video, it won't change your opinion any from it being scary af, if anything it will make you think it is more scary still: ruclips.net/video/oipksRhISfM/видео.html
yeah I know, not for the burns but due to the small area of skin exposed hours later often results in sudden cardiac arrest and obviously death. Immediately washing your skin does virtually nothing to save against the death of flesh in the local area or against heat attack.
It's quite difficult to get anything to release fluorine gas. Small comfort, considering how hideously dangerous HF is all by itself. I'd bet on HF reacting with pretty much anything you'd reasonably encounter day-to-day-save the inert gases, gold, platinum, and Teflon. Some substances might take longer, but that fluorine is vicious. In short, expect that it'll try to kill you until expressly proven otherwise... Because it probably will
I have always had a great respect for Toisioi2. However, he does not say how he disposes of his used chemicals. By the way, I one had an HF burn. It was not pleasant, but the company nurse soon sorted me out and was good to go in 4 weeks.
When i was 11, myself and a friend used a home chemistry set that was taken to school at end of year. We were ment to follow the recipe, but being kids we didn't. We added lots of chemicals to the test tube and only after water was added did we realise we created a compound that ATE THROUGH THE TEST TUBE, destroyed the metal spoon, and ate through the table (metal) but didn't eat through any living organic matter. I say this as my friend got the stuff on his hands and nothing happened to him. Needless to say the teacher was impressed,but annoyed we we ruined the table
In 40% solution with water, yes - the H-F bond is too strong for most F's to let go of their H, and H3O+ gets bound so strongly to F- where it does form that the whole thing acts as a weak acid. But 100% HF is absolutely a strong acid: with no more water left to protonate, it ends up autodissociating into H2F+ (fluoronium) and HF2-. Fluoronium is a very unhappy creature that protonates everything it sees. That's why all the superacids are based on HF: fluoroantimonic acid is a mix of SbF5 and 2 HF, and the SbF5 grabs one of the F's to form SbF6-, leaving copious amounts of H2F+. Then you end up with an acid 10^16 times stronger than pure H2SO4. Which is really cool because all those transitionary carbocations that people talk about as intermediates - which were previously just theoretical and mostly not observed - are actually stable in fluoroantimonic acid. Even methane gets protonated to CH5+. It's such a strong acid that there might as well just be free protons wandering about.
The (somewhat arbitrary) definition for what qualifies as a strong or weak acid actually makes it so that HF is both a weak acid (partial dissolution in water) and a superacid (Hammett acidity value less than that of 100% sulfuric acid).
Periodic videos did that, and it didn't do anything immediately and then they can back and the meat just vanished without a trace. Just utterly annihilated.
some ignorant dumbass people always make criticism over your accent & so on...don't mind... am a chemical engineer & honestly saying, i haven't performed or seen many of these reactions even in my university .!! you are doing tremendous job bro... keep going...
I can't tell who are the real Russians and who are the voice synthesizer Russians any more.
Great demonstration all around.
As a teenager in the early 1970's, I used hydrofluoric acid as an etchant for glass, but was not properly aware of the enormous dangers, and was stupidly lucky that I escaped injury.
I would never use it again for that reason, but did enjoy seeing your video. Thank you for showing the very real and hellish wounds resulting from accidental exposure so that amateurs will leave it alone!
S.D. S. The wounds are the better part. That stuff is highly toxic, can kill you with a barely visible wound.
Thank you brother, great job on explaining your knowledge to the public. Keep educating people.
I've got NaCN dissolving gold and copper in a beaker with an aquarium bubbler on the other side of my bedroom, to practice doing the same thing on a much larger scale with a 60 lb bucket of so-called "paydirt". Some calcium hydroxide to make sure the pH stays high, an HCN monitor, and the usual goggles and gloves are plenty of safety gear for me. And I play with strong acids all the time, although very far away from cyanide. But HF scares the crap out of me and is one thing I won't touch with a 10-foot pole, unless it's made of Teflon.
It's one thing to have a strong acid which, if you get it on your skin, will burn you if you don't wash it off right away. It's another thing to have a sneaky acid that actually stays mostly undissociated and acts just like another small polar molecule - H2O - to penetrate deep within your skin and into your bloodstream, corroding all the way down, slowly but painlessly over the next few hours as the F- ions that hit the bloodstream grab Ca and form insoluble CaF2, eventually messing up the heart's electrical rhythm and killing you by cardiac arrest.
this guy is so badass i love watching his stuff.
Amazing sir... Once I start watching your videos , I can't stop now
I agree. This videos are highly addictive
Do flouroantomonic acid plz
*ARE YOU MAD???* XD
The_ Demon_
Edward Jones why
Search for "TechRax Phone Strongest Acid"
he destroys a phone with it :p
The_ Demon_Slayr ^^^
I love youuuuu!!! Thanks for educating us
Well said.
English (US)
English (UK)
English (RU)
@04:53 "in the production of Teflon" : hydrofluoric acid is not used to produce Teflon itself. It is actually used to perfom micro holes in the pan, such as the liquid Teflon (non sticky) can hang to it.
What a coincident, I just made a video on 'breaking bad' chemistry where I am covering a subject about hydrofluoric acid and its ability to dissolve human flesh. You made an awesome video, by the way, I've learned few new things about it from yours.
Shut up
Wowow! Your artistic talent is astounding! 😆
Do a video about magnesium, its my favorite element!
Then see my channel please
When it comes to acids Hydrofluoric acid is a pretty weak acid despite its reactivity with glass.
Just Half face respirator ? I was think doing some research with HF, even with full face respirator and hazard suit, i still feel a strong need of an antidote
We're dissolving rocks in our lab to get palynomorphs out of them
its stored inside a fumehood we just use a faceshield and gloves when handling it no respirator whatsoever (but specialized fumehoods that can deal with HF by washing the gases its sucking up)
we had an eastern european researcher in our lab for some time and he used to stir the rock/HF mixture with his bare fingers
he always washed his hands thoroughly after and never had any problem with it (i wouldnt try that tho)
Well i have a good full face respirator and i won't touch this shit, it's too scary...
Szakembőr TV TMIAE hmmmm... R.I.P.?
TheRolemodel1337 Bullshit. HF acid with concentration high enough to dissolve rocks can be extremely dangerous even if only a few drops contact the skin.
no bullshit ive seen it he was fine
I would love to see some demonstrations of Caro's acid (H2SO5) on metals and organic substances like a chicken leg!
Also Fluoroantimonic acid (H2F[SbF6]) would be very interesting if you can get your hands on some! You have a great channel, love your work 😎👍
BRO YOUR VIDEOS ARE SUPER GOODDDDDDDD
I remember working with hydrochloric acid in science class.
My group was too afraid to pour the acid even though HCL is virtually harmless if it gets on your hands. Just wash it off in a small period of time and you're good.
The stuff smelled strongly of rubbing alcohol, and according to my teacher, pretty much all acids smell like that.
I think your teacher is either very ignorant or misinformed
Great information and explanation - love the accent too..
Fantastic video, i never knew any acid could affect glass, but i do now, love this channel, i love to learn in general but chemistry is exceptionally fascinating to me.
Glad I found your channel, such great videos :D
this acid have another use in the aluminium process, it is used to clean the surface of aluminium sheets before application of a protective laquer coat. the processed aluminium sheets are used in automotive industry and other industries in need of aluminium without an oxide layer, it's easier to get rid of the laquer coat than the oxide.
Keep making the interesting videos of chemical experiments... Very good work and keep it up..
Chemistry became more intresting after waching som of ur vids^_^
I did a tour of a large research lab which had a large bath of hydrofluoric acid which was used to remove the glass layer over micro chips. The chips where then run in an electron microscope. There where very strict precautions in the area and chemical showers etc. it was very cool to see the chip actually running. A lot of high security chips have wire grids and other features to stop such attacks.
Should make one video on Fluoroantimonic acid, the strongest acid in the world! That would be super interesting!
We also used it to clean steel in the pharma industry. It's used as a mixture with nitric acid.
Use Floro Antimonic Acid
Thank you for making these excellent video.
You have got big balls touching this shit in this amount...
Hydrofluoric acid almost fully dissociates.
The reason of its low acidity is the formation of hydronium fluoride clusters, lowering the activity of the acid.
The acidity varies very rapidly with concentration.
Highly concentrated HF solutions are extremely acidic, due to less clusters and the formation of HF2- anions.
in philippines they use that as a cleaning detergent in bathroom tiles and sink or even the toilet bowl
cause it melts away the dirt easily 👌
I love you. You are awesome. So much hard work in your videos.
Make a series on acids pls
Thanks for providing video and knowledge
Can we use this video for our non-profit purposes.
And we will take it with full credits.
Ok??
Best channel ever!
Also used with nitric acid in the maintenance of neon signs.
Pretty sophisticated Greenland
A similar process is used to etch masks for the production of microprocessors.
It's possible to etching glass bottle??
I love watching this channel. Russians... with a voice, finally.
do a video on bromine
Widely used in the stimulation of conventional oil wells (sandstone formations); I used to utilize it a lot in 3% HF : 12 HCL concentrations.
Also used in boat hull cleaner, I've used it daily for several weeks
4:13 "by se way" so funny XD
Cool video! Thanks!
You are from czech republic?
I used HydroFlouric Acid & Nitric Acid to Etch Titanium for Anodizing the Peacock Colors, but the Risk is too high and Niobium does not require Etching and cuts with Jewelers Saw exactly like soft Silver.
I had to store the 2 acids in a tote packer with 2" of lime in case os spills & fumes.
I hate to be one of "those guys", trying to make you feel bad about your accent (which you shouldn't, regardless of what anyone says), but I lost it at "plastic wessels". Because Pavel Checkov.
These guys know what I'm talking about...
Plastic nuclear wessels?
I like when he says keramic.
Can you demonstrate making Lithium Fluoride salt from Hydrofluoric Acid. 2Li + 2HF = H2 + 2LiF. LiF is a salt used as a coolant in Thorium molten salt reactors. You might also demonstrate Beryllium Fluoride from Be + HF.
31 people disliked aaassid ;P
love your channel, thanks for all the wonderful information
Thank god for 'Teflon' the only plastic that keeps this acid in safe captivity.
Polyethylene and ETFE do a good job as well. Just don't use a polyester like PET
How do you safely dispose of those hazardous chemicals?
They put this stuff in drinking water and toothpaste! No kidding.
so true! these chemical break-downs are interesting, but people have to wake up and realise we are being attacked by these chemicals from all angles!!
Do chlorine trifluoride pls
Where have you Got that acid ???
Im a simple man, I see "FLUOROVODONIČNA KISELINA" written on the bottle, and I hit LIKE, even though I have no idea what it is, but I can read it...
It says hydrofluoric acid
*FLUOROVODONIČNA KISELINA*
please make a vedio on carbon
Which accid that can dissolve rubber
I'm starting to think that I learn more things on the internet than on my classes
From where did you obtain it ? I am very suprised that on both flask is also the name in czech :D
Make a video on element polonum
You are from czech republic?
Fun fact: Calcium fluoride (flurospar) is so poorly soluble in water that is takes an extremely long time to even make any hydrofluoric acid with the method of pouring hydrochloric acid onto calcium fluoride.
Hf is scary af
Not even remotely close to SbHF6
Not even close to pepto bismol
Here, watch this video, it won't change your opinion any from it being scary af, if anything it will make you think it is more scary still: ruclips.net/video/oipksRhISfM/видео.html
yeah I know, not for the burns but due to the small area of skin exposed hours later often results in sudden cardiac arrest and obviously death. Immediately washing your skin does virtually nothing to save against the death of flesh in the local area or against heat attack.
lsd even scarier you can see shit you'll never forget if you overdose real hard
But what of strong sodium hydroxide solution?
Eats glass much faster, far safer to use.
Just saying...
That's true.
will hydrofluoric acid react with manganese dioxide or will it release fluorine gas?
It's quite difficult to get anything to release fluorine gas. Small comfort, considering how hideously dangerous HF is all by itself.
I'd bet on HF reacting with pretty much anything you'd reasonably encounter day-to-day-save the inert gases, gold, platinum, and Teflon. Some substances might take longer, but that fluorine is vicious.
In short, expect that it'll try to kill you until expressly proven otherwise... Because it probably will
I worked in a lab, cooking ore samples in HF and other nasties like HBr (hydrobromic acid). Very scary, you have to be so careful with these acids.
CsOH is also able to dissolve glass
I have always had a great respect for Toisioi2. However, he does not say how he disposes of his used chemicals. By the way, I one had an HF burn. It was not pleasant, but the company nurse soon sorted me out and was good to go in 4 weeks.
thanks for the warning
i was saved from a fortnight of bad dreams.
I never pay attention in science class at school now da fuck i am watching this ?
do Lysergic acid diethlamide
I'm bad in chemistry but i want to know that
why other acids are don't react with glasses (that we use in lab and maybe normal house use one also 🤔) ?
How industrial silicone is made ?
Do chlorine trifloride.
Can this acid dissolve quartz glass?
When i was 11, myself and a friend used a home chemistry set that was taken to school at end of year. We were ment to follow the recipe, but being kids we didn't. We added lots of chemicals to the test tube and only after water was added did we realise we created a compound that ATE THROUGH THE TEST TUBE, destroyed the metal spoon, and ate through the table (metal) but didn't eat through any living organic matter. I say this as my friend got the stuff on his hands and nothing happened to him. Needless to say the teacher was impressed,but annoyed we we ruined the table
Do next HClO4
please make of chlorine tri flouride its very difficult but i think you could do
HF is actually technically a weak acid. Sulfuric and all of the other oxyacids are much stronger.
In 40% solution with water, yes - the H-F bond is too strong for most F's to let go of their H, and H3O+ gets bound so strongly to F- where it does form that the whole thing acts as a weak acid. But 100% HF is absolutely a strong acid: with no more water left to protonate, it ends up autodissociating into H2F+ (fluoronium) and HF2-.
Fluoronium is a very unhappy creature that protonates everything it sees. That's why all the superacids are based on HF: fluoroantimonic acid is a mix of SbF5 and 2 HF, and the SbF5 grabs one of the F's to form SbF6-, leaving copious amounts of H2F+. Then you end up with an acid 10^16 times stronger than pure H2SO4.
Which is really cool because all those transitionary carbocations that people talk about as intermediates - which were previously just theoretical and mostly not observed - are actually stable in fluoroantimonic acid. Even methane gets protonated to CH5+. It's such a strong acid that there might as well just be free protons wandering about.
@@grebulocities8225Thanks, sir. Excellent explanation!
Not all other oxyacids. HF still has a lower aqueous pKa than boric acid or carbonic acid both of which are oxyacids.
The (somewhat arbitrary) definition for what qualifies as a strong or weak acid actually makes it so that HF is both a weak acid (partial dissolution in water) and a superacid (Hammett acidity value less than that of 100% sulfuric acid).
Do pepto bismol plzz
great .....
@thoisoi2 what is hydrobromic acid?
Спасибо
This channel vs CrazyRussianHacker
Accent=Same
I just use lye for silica gel. Works great to pour "glass".
There are new and modern ways to break apart silica matrix without HF, like Sodium peroxide fusion using a CLAISSE TheOx Advanced system.
It also dissolves titanium.
Good work...stay away from that acid...
In addition,it depends on the amount of water present with the acid to begin with.
what if you put antimony directly to this acid?
6HF+2Sb--->2SbF3+3H2
Holy zhit manz, zis vidio iz very kulz.
React it with liquid nitrogen
HCF is weak acid, but very strong corrosive!
@thoisoi can you do FlouroAntimonicacid?
I saw a video in which a guy dipped a piece of meat in hydro fluoric but nothing happened it just turned bluish grey
Periodic videos did that, and it didn't do anything immediately and then they can back and the meat just vanished without a trace. Just utterly annihilated.
h8 the background music
Geez, that looked like $500 dollars of hafnium. Why not just use a thin plate of it for the demonstration?
Why are you watching this video this late? Goto sleep