What does F2 smell like? (Stinkspar comparison)

Stinkspar is a strong smelling rock, but is the smell fluorine? We crack out the fluorine bottle to compare (((it is a 1 ppm fluorine bottle dedicated to this task)))
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References: The paper on detection of elemental fluorine in Stinkspar:
"Occurence of Difluorine F2 in Nature - In Situ Proof and Quantification by NMR Spectroscopy" doi.org/10.100...

[@ExtractionsAndIre]

If you want to see some fluorine chemistry and haven't seen the Explosions&Fire video yet............... it is right here::: kzbin.info/www/bejne/hV7KZmCCf5p-kK8&

[@rostamostmann9657]

"Two chemists with chemical induced neurological damage describe the smell of highly toxic gas." colourized

[@Ms.Pronounced_Name]

The 2 chemists being the guy holding the canister and the woman they bring in to give a 2nd opinion? Because Tom is a Physicist!

[@festivite]

@@Ms.Pronounced_Name oh, so sorry to hear that. I hope he gets better soon

[@sucroseboy4940]

@@festiviteWas about to say that. It really does explain a lot, when you think about it. All the suffering he put himself through, in all these years. It was a cry for help

[@Ms.Pronounced_Name]

@@festivite unfortunately I think he's beyond recovery, unless he decides to do a 2nd PhD

[@pattheplanter]

@@Ms.Pronounced_Name Just because you aren't qualified and only have a shed doesn't mean you can't chemize and be a chemist. All three chemists in the great tradition of Humphry Davy. If you are not going to smell it, why make it?

[@greg6126]

PhD's make you smart... *Three academics in a triangle tapping a rock with a spanner and sniffing it to see if it smells like the F they were snorting a moment ago.*

[@Moonstone-Redux]

There's a reason those who have actually gotten a PhD call it "Permanent Head Damage".

[@gtfkt]

Don't confuse education with intelligence.

[@DrBunnyMedicinal]

@@gtfkt Exactly: Qualifying for a PhD is an INT test. Deciding to actually *do* a PhD is taking a WIS check, and failing.

[@AnonNopleb]

Tom doesn't need to hear all this. He's a highly trained professional

[@TV-xm4ps]

PhD's should be curious, a bit like kids. And sadly many people lose this excitement of exploring as they age.

[@GoughCustom]

Holding your nose over a cylinder of 'diluted' Fluorine while someone else opens the nozzle... Now THAT is trust 🤣

[@rykehuss3435]

Should put a piece of paper in front of it, if it spontaneously combusts you probably dont wanna smell it

[@ExplosionsAndFire]

Haha not that I don’t trust him… but also it is a strange cylinder setup with a double valve. So the first valve opens and just fills the neck of the flask, and then that’s shut. So when the outer flask is opened, it just puts out the small amount of gas that was trapped in the neck between the valves

[@technoman9000]

The old "put the valve in my nose" method

[@magusperde365]

Its kinky af

[@akosv96]

@@GoughCustom "it smells like something is burning" is not what you want to hear

[@ConstantlyDamaged]

_takes notes_ Geologists: lick rocks Chemists: sniff rocks Physicist: tap rocks Engineer: melt rocks

[@akosv96]

Musicians: play rock 🤘

[@Flesh_Wizard]

Astronomers: watch rocks

[@SeanCMonahan]

Biologist: eat rocks

[@vincedibona4687]

Prisoner: breaks rocks

[@LaSDetta]

Junkie: smokes rocks

[@GoldenPantaloons]

I subscribed to Explosions & Fire back when you did "Which salt tastes the best?" Glad to see you going back to your roots.

[@Wanhope2]

Damn right!

[@Lizlodude]

I still rewatch that video every so often, the chaotic energy is somehow very different with other people involved 😅

[@JacobWat]

"this is safe enough to smell? " "yeah, sure"

[@straphyr]

"well it didn't immediately kill us last time, it's probably fine"

[@me0101001000]

The look of pure terror I had when I saw the title

[@vdate]

'Ah, fluorine chemistry claims another victim.'

[@jovetj]

Yeah, I know. Can't even do "F₂" correctly...

[@christiannorf1680]

Then you probably haven't seen NileRed's smelling cyanide video

[@samuelgarrod8327]

Means what? Your insecurity about other people doing things that don't affect you? Grow up.

[@me0101001000]

@@christiannorf1680 I have. I have chosen to stay away from organic chemistry. I like my inorganic nanoparticles... pay absolutely no attention to the high voltage power supplies

[@mfree80286]

- obtain difficult science degree - sniff rocks - win the internet

[@alexrogers777]

A lot of people don't know this but science is wayyy more fun when you sniff rocks beforehand

[@christiannorf1680]

I don't think I have ever sniffed rocks before. But I have made a compound that smelled like artificial apple. That was fun.

[@WSDMatty]

I knew geologists licked rocks but I didn't think anyone was going around giving them a good sniff.

[@veridico84]

People sniff rocks and crystals a lot where I live.

[@WSDMatty]

@@veridico84 now that you mention it, that's pretty popular around my area too.

[@hammerth1421]

A lot of them have a little bit of that sulfury rotten egg or burnt smell because of a slight hint of sulfide minerals even in otherwise not sulfidic rocks.

[@VoidHalo]

They don't exactly lick rocks. At least, I never have. I have no doubt some people do, but there's a risk of ingesting rogue heavy metals or other toxic compounds. Personally, I rub them on my upper lip, both the dry and moist part. It gives you a much finer sense of touch than if you just use you fingers. Your lips have many more nerve endings, so they can register touch much more fine. Funnily enough, this is exactly why babies always put things on their mouths. They're feeling them with the superior tactile abilities of their lips and tongue.

[@Gakulon]

​@@VoidHalo To be fair, I did lick a rock in one of my geology labs when I was still in college. It was a small piece of a halite sample so like, the MOST basic bitch example of rock-licking 🤷‍♀, but it was still fun

[@alexandermarsteller7848]

entry level chemistry: do not smell the chemicals, it will hurt you PhD level chemistry: what's your favorite toxic fume?

[@oliver1784]

these are so fun to watch, u interacting with other chemistry nerds is like food for my soul

[@danwhite3224]

I've never smelled fluorine, but ozone is one of my favourite smells. It smells fresh and clean and sweet.

[@remcovanvliet3018]

That's the smell after the ozone has done it's job: meet up with a smelly molecule, break down into O² and a single, extremely reactive loose O, ready to oxidize the smelly molecule. Ozone is what you smell in a copy room, or from a laser printer.

[@ExtractionsAndIre]

Now that’s a take I completely disagree with! Wow, I’m impressed

[@just_some_commenter]

@@ExtractionsAndIre The moral of this comment section is that everyone thinks ozone smells like whatever context they first encountered it. If you used it to clean things, it smells clean. If you associate it with thunderstorms as a child, it smells like thunderstorms. If you associate it with machinery, it smells like metal and industry. For me it will forever smell like slot cars.

[@isaacthedestroyerofstuped7676]

​@@ExtractionsAndIre I think it's conc. dependent. At low conc., it smells nice like thunderstorm petrichlor, but around 1ppm it becomes noxious and metallic. To me at least

[@texasslingleadsomtingwong8751]

For the life of me , I could not figure out how you were going to safely smell fluorine

[@hammerth1421]

The dose makes the poison. It's actually quite common to get a good sense of the smell of the stuff you're working with, despite working in a fume hood. It may not be as good as that of a dog, but the human nose still is very sensitive.

[@allesklarklaus147]

I think some people can't smell it? But my memory might be corrupted.

[@alexrogers777]

That's the neat part, you don't!

[@texasslingleadsomtingwong8751]

@alexrogers777 dang stuff is just so incredibly reactive.

[@sportsfamily77]

Fluorine smells similar to brussel sprouts? I always knew I hated brussel sprouts for some reason, must be self-preservation instinct.

[@hammerth1421]

Chlorine smells like swimming pool. Bromine is a heavier, more lingering swimming pool smell like someone made whiskey x pool chlorine. And fluorine apparently smells like a chlorinated pool full of cabbages.

[@Paonporteur]

​@@hammerth1421as a person whose lungs shudder by merely mentioning bromine, it has its own smell that smells nothing like chlorine, not even close. If anything, it's closer to iodine

[@crackedemerald4930]

isn't pool smell chlorinated pee?

[@The.Heart.Unceasing]

@@crackedemerald4930 no ?

[@eaglgenes101]

​​​@@hammerth1421I've heard Bromine smells like Disney park water rides, since they use it there I can't really remark on it personally though, it's a while since I last went to such a place

[@hanifarroisimukhlis5989]

Reminds me of an old joke: What's the difference between chemistry and cooking. With cooking you lick the spoon.

[@quiteindeed6809]

Step aside whippets, the new hot inhalant dropped.

[@christopherleubner6633]

Hey let's try some...😂 😳💩💀💀💀😂

[@jansenart0]

This video is a Dracula Flow bar: "Catch me in Berlin, huffin' heavily irradiated difluorine!"

[@cameronmeraz]

Not enough upvote for this comment. There you go, lemme help you out there, bud

[@jansenart0]

@@cameronmeraz This shit ain't nothin' to me, man.

[@jacksonherriott470]

You need to start going to random labs around the world and video the antics in each...pure gold. I hate chemistry (I'm in medical sciences) but god damn you make chem interesting.

[@esesel7831]

Ozone smelling like a machine makes sense, electric motors emit small amounts of ozone

[@remcovanvliet3018]

Copy room smell.

[@BooBaddyBig]

In smaller doses it often smells kinda sweet actually.

[@geoffreyentwistle8176]

I figured it would be one of the primary smells of lightning, so it would have a kind of metallic, piercing odor to it...

[@quint3ssent1a]

More like fresh air after the thunderstorm...

[@isaacthedestroyerofstuped7676]

​@@quint3ssent1a Yeah at _extremely low concentrations._ At the concentrations you get from lightning or CRT TVs, it smell pleasant, sweet, etherial, but at even modertae conc. (like 1ppm) it becomes metallic, bitter, and stinging.

[@LikeGG]

Props to the editor for making this a million times funnier with the stock images

[@ExtractionsAndIre]

I decided it needed them about 30 minutes before I uploaded it haha. If I had an editor things would probably be funnier

[@alexrogers777]

@@ExtractionsAndIre I suspect you don't always have the time to put the work in, but when you do you're a fantastic editor. There's a million science channels, your humor is what made me subscribe to you

[@Ghost-yc1qc]

R22 (CHClF2) refrigerant is commonly described as a sweat and/or cherry smell, made it easy to tell if there was a leak inside fridges or cold rooms.

[@IdiotPosterBoy]

Do they perhaps add a strongly smelling substance to the gas to make leaks easier to detect? It's commonly done with dangerous gasses.

[@sprolyborn2554]

now is that the smell of the refrigerant itself? or an additive meant to provide a detectable odor? like how propane has no odor so they added mercaptan so you can easily smell a leak.

[@Slowly_Going_Mad]

Might explain why when it would occasionally smell like cherry limeade after a train passed by at the farm.

[@teresashinkansen9402]

I have smelt R22 at low concentration. It doesn't has any smell whatsoever, only could smell compressor oil.

[@lawabidingcitizen5153]

@@sprolyborn2554 It's supposedly the refrigerant itself

[@ClaraCl2005]

The expert research of banging on rocks and making a guess, except literally this time.

[@littlebacchus216]

At least you can still smell Nilered appears to be almost anosmatic by now.

[@hammerth1421]

Smell blindness is a real thing. I only really notice ammonia these days when it's concentrated enough to tear gas me.

[@Tishers]

If you want a job where you are around chlorine, fluorine and ozone with a few meters of each other than you want to work in a drinking water plant in the United States. For me, ozone is 'the worst' as it initially smells nice, like lightning, but after a few minutes it is similar to being choked. We programmed the devices that controlled the chemical injection systems for drinking water plants. Ozone was interesting as it was one of the few times where I had seen stainless steel corrode.

[@spankeyfish]

IIRC ozone irritates your airways (hence the choking) and can cause 'permanent changes in lung function' according to some MSDS I read a long time ago.

[@Emu0181]

I was concerned about how "safe" the last video was, glad to see we're back to doing things the Dr.Ex&F way

[@Xeno056]

I remember HF didn't really "smell" like anything... but the sensation was like someone was chocking me. Sharp, alarming, more dilute than chlorine. Didn't smell it on purpose, but the job specified using HF on an unvented tabletop was a-okay and moreover required. I lasted 10 months.

[@teresashinkansen9402]

To me it smells like a more acrid choking version of HCl with sweat/dirty laundry undertone.

[@christiannorf1680]

Oof... good thing you quit. I'm always terrified when the electronics or optics people whip out HF without having any clue what they are doing. I just managed to accidentally smell HCl once. But there wasn't much of a smell to it. More like somebody stabbing a knitting needle into your nose.

[@lashlarue7924]

bro that's WILD. Good thing you quit, they don't keep statistics on all the people who die from cancer years later.

[@TheDeveloperGuy]

Ozone is worse? That’s not that bad. (I know it’s deadly, but it always smelled like “damn, it’s clean” after I disinfected my workshop overnight)

[@ExtractionsAndIre]

too clean…. Maybe I just hate clean

[@TheDeveloperGuy]

@@ExtractionsAndIre I haven’t smelled F2 before, so I should get a canister first. Should be easy, right?

[@Ma_X64]

When you bring clothes from the outside they have quite good smell but I think that isn't a purely ozone smell. Ozone itself smells extremelly agressive and doesn't remind the smell of that clothes at all.

[@SeanCMonahan]

Ozone is that blue smell of electrical arcs, right?

[@TheDeveloperGuy]

@@SeanCMonahan >blue smell You can describe it like that, but I prefer photocopier/laser printer smell.

[@rubenkaiser517]

Jesses, Rosenkohl Alarm! I wasn't prepared man.

[@Xiaotian_Guan]

I happen to have an antozonite sample in my element collection. Interestingly, depending on how I hit it, the smell it gave off is different. It's hard to describe, mostly a bleach kind of smell, but milder, not too unpleasant. But that one time I hit it hard and a rather big chunk came off. The smell was much stronger and very unpleasant. I guess it's just down to concentration. There's actually a surprising amount of F2 or whatever in those rocks. If you take just a small piece, like, half the size of a soybean. Put it in a plastic bag along with a wet piece of potassium iodide - starch paper, and grind it with mortar and pestle, the test paper will visibly turn blue

[@ExtractionsAndIre]

Was it very bleachy the whole time or did it ever get a bit more of a ‘cabbage’ smell to you?

[@At0mix]

There's a version of gas chromatography (GC-Sniff) where your nose is the detector. Carrier gas exits the column and goes straight up your nose. GC-Sniff-MS (coupled to mass spec) is actually really powerful to solve questions like this 😂

[@christiannorf1680]

I was honestly asking myself if nobody has just put that stuff into a mass spec. Would be so much easier than analysing it by NMR

[@bob2859]

I'm so happy Tom finally got to time travel back to the 60's

[@simoniuszalox3293]

Great grey tiles and junk in the background proofes your time travel hypothesis. Will Tom be back to the future?

[@vincedibona4687]

I always describe ozone as smelling of hot electricity.

[@joshc5613]

i mean yeah considering arcing electricity can convert atmospheric oxygen into ozone that checks out

[@Leo99929]

No ones checked with some kind of spectrometer (TOF MS, maybe?)... Put it in a box, evacuate it. Then drop something onto the stinkspar, then put the gas produced through the spectrometer?

[@ersp1]

Unless the stinkspar tapping products are pure that's not going to tell you what actually smells, it'll just give you candidates for what actually smells. Comparison to a reference is still useful.

[@ExtractionsAndIre]

There’s the paper in the description where they do really great analysis- fluorine NMR to pick up that there’s F2 gas in the rock before breaking. So there is definitely F2 gas, but is it directly responsible for the smell??

[@isaacthedestroyerofstuped7676]

​@@ExtractionsAndIre It sounds like the fluorine is being released and reacting with _something_ to make ozone which we are more sensitive to

[@Leo99929]

@@isaacthedestroyerofstuped7676 this is interesting. Hitting other stones together has smells too. Like flint. From memory that's more like a burning metallic kind of smell, maybe? I wonder if there's any link to petrichor? Also in wine the "struck flint" smell is a sulphur compound: benzylmercaptan. I'm now wondering if we're getting a localised hot spot on the impact site that heats up the gases and produces other products, like NOx, maybe? could be some localised pressure too? Maybe solids in the rock acts like catalysts at those temperatures? Can we heat up a chunk of Stinkspar and see if the smell is made? maybe at pressure? use a laser maybe?

[@christiannorf1680]

@@isaacthedestroyerofstuped7676 That sounds extremely unlikely

[@Ma_X64]

Karl Scheele sighs enviously somewhere in the corner.

[@Ted_bayly]

The best description of the smell.of ozone I have seen is "spooky" and I got to agree

[@kumiredruid]

Look at his eyes, you can tell he's been enjoying that Fluorine smell a little too much, lol

[@Peter_John_Lassen]

I have worked a few times with substances that left a HF gas after the reaction and it smelled like tomatoes. My chief explained to me that HF reacts with the mucous membranes of nose and mouth and you can smell and taste the "product" of the reaction between hydrogen fluoride and the remains of the food you have eaten before. Perhaps the pleasant smell of fluoride caused by the same effect?

[@goosex3644]

Love the content that has been coming out by the way!

[@TheTulerie]

I'd be curious about what kinda beer Niklas prefers considering he enjoys the smell of flourine

[@nergalblacksun]

if its what they drank at that party at the end of the mainchanel video i must disappoint you for they drank the dishwasher water of the brewery and not the beer... wait ...that might explain things!

[@pimpz7409]

Keep up the great work! Appreciate you brother man 👨 🙏

[@dylanmcvicker9503]

ozone smells like electrified rain storm air

[@pattheplanter]

In lightning storms the ozone is mixed with nitric oxide (NO), hydroxyl radicals (OH), hydroperoxyl radicals (HO2) and nitrogen dioxide (NO2).

[@jeffreyyoung4104]

It's strange, but when I smell the air when a storm is coming, I can really tell how strong the storm is going to be by the scent. But it is different than the old tube radio smell as it is turned on and warming up, more like the sparking electric motor ozone smell with the scent of chlorine, and since they have stopped using the old CRTs, the high voltage smell of TVs has gone away...

[@Slowly_Going_Mad]

​@@jeffreyyoung4104it actually makes me sad somewhat. Weird things nostalgia makes you miss.

[@jeffreyyoung4104]

@@Slowly_Going_Mad I can understand that! There are many things I miss, but when it starts to get to me, I take a walk with my dobie pup Thor, who walks me out of the funk.

[@fakestory1753]

That rock not only have fluorine, but also helium! Two extremes on reactivity in one rock.

[@ff7omega]

I actually really enjoy the smell of ozone.

[@Drjtherrien]

Uh oh. Tom's wandering into NileRed's territory. Is the next video going to be "Which tastes better, FOOF or ClF3?"

[@DrAcetat]

Thanks for this Video! I wondered this a few days ago thanks for the answer!

[@drewcagno]

It was nice to see you in your natural environment with other scientists. You seemed very comfortable.

[@_Piers_]

I've not been to a photocopying shop for decades, but I still remember the distinctive smell they always had.

[@Alloran]

I wonder if huffing Fluorine gas was just one of those things rattling around on Tom's bucket list. Honestly I wouldn't even be surprised. It's the same way I feel about sky diving. It sounds heinously dangerous, but, if we're being real about it, you take bigger chances getting in your car to go to work so why not?

[@craphazzard]

Love watching you interacting with other smart people.

[@tutis159]

How does ozone smell? Like lethal radiation dose feels

[@soylentgreenb]

Ozone smells very much like a photocopier or static discharge. There is some NOX there so it isn’t a pure ozone smell; but if you know what NOX smells like you can mentally subtract it out and get a good idea what ozone smells like.

[@genericalfishtycoon3853]

Ah it's not that bad. I've smelt rooms absolutely saturated from ozone generators, it's oppressive, but not that bad. lol

[@sadnessofwildgoats]

My mom has Ozone as a part of her CPAP machine for her sleep apnea, I think it was a part of a sterilization box she puts the bitty bits in. Asked to smell it one day and, can confirm, it really does smell like that. I absolutely hate the "new car smell" and it felt like a version of that multiplied hard enough to make you have the pain you have when chlorine water goes too far up your nose

[@raideurng2508]

TasTE The MeTaL

[@themightybuzzard3088]

Like your computer needs a new power supply.

[@Leo99929]

Is there some chemistry you could do involving something like submerging the stinkspar in a liquid that reacts with gaseous chlorine/ozone and a stainless steel ball, so you can shake it to hit it and see if it reacts? IDK...

[@emielia.]

Omg hey Tom, it’s so cool that you came to my uni!

[@RossRadford]

E&I: "I'm not gonna forget it, probably." Fluorine: [proceeds to destroy brain cells]

[@danvanmuizenberg6650]

Welding with argon produces some lovely and no doubt deadly smells

[@DudeManDude-ot5fv]

This is the scientist equivalent of "come smell my fart."

[@huntercornwell760]

Ive been laughing at the thumbnail for like 5 minutes. Amazing work (as always)!

[@onezerotwo]

I absolutely love the smell of ozone. There was a time where I live that, I was told, fancy buildings pumped ozone in super low concentrations into the garbage rooms so when you went in your sense of smell basically shut off, I visited a building like that once and the fact it shielded me from garbage smell made it my favourite chemical thing ever.

[@woosix7735]

This is the long awaited sequel to that tasting alkali metal salts video.

[@Alche987]

Did u clean the rock and the wrench first? Or are u just smelling human oils?

[@DirtyPlumbus]

I completely agree that ozone has a metallic smell. The smell after running a Tesla coil is always unpleasant.

[@mycosys]

Putting the mental in Experimental!

[@sobertillnoon]

"idunno, smells kinda like dirt" "… Oh, I kinda liked it"

[@SizzleCorndog]

I'm convinced I lost my sense of smell working in an acid based lab right out of college and I'm glad someone is going the real work of smelling the things that "they" told us not to smell

[@shipyaad]

"....a low enough concentration that it's safe enough to smell." "yeah, sure"

[@Starkandco]

The sweet taste thing tracks with how we grow tastes for food. Starts off with brain being like "Hey there are weird bits here that we're not sure about" as a safety mechanism but eventually you grow to taste the underlying pieces of the puzzle

[@kosumi001]

This is a genuine professional chemist behaviour👍🏻 - confirmed by a professional chemist

[@yesthatkarim9601]

“…they detected elemental fluorine within the matrix.” Man I flashed back to Agent Smith telling Morpheus that what he hated about The Matrix was _the smell_ . lol Brilliant, hilarious video. Extra points for the Metal Gear “❗️” jarring chord. 🤣

[@X4Alpha4X]

sounds like a vacuum distillation and mass spec is in order.

[@arjovenzia]

as an avid high voltage experimenter, I love the smell of ozone. the colors of a UV damaged retina, the oxidisation of mucus membranes. aaah, success

[@lharsay]

How does it smell compared to astatine?

[@JSTKSK]

Answering the REAL questions! Many people want to know what new technologies and life changing discoveries chemists are producing in their labs. But, what does it smell like!?

[@mattilindstrom]

As a kid having the opportunity of visiting my dad's workplace, there was a room with an ozone generator. The concentration in air was well within the limits for whole day workplace exposure, but for my little nose it was far too much, even a minute's stay caused a quarter of an of hour sneezing fit. I can't imagine what fluorine gas would do to me as an adult.

[@bhartley1024]

It makes me sneeze too! I had an ozone generator running in a room to destroy allergens like mold and dust mites, but I didn't give it enough time to dissipate and there was still some in the mattress which came out when I lay on the bed, it was like hayfever.

[@МельникВладимир-я2ц]

This is super content f*** yeah

[@tommypampalone9850]

would it be possible to collect gas from the rock and run that through a GC/GCMS? feels like that would be a pretty decisive test, but i'm sure there's a reason that hasn't been tried yet

[@jansenart0]

Ozone smells like a thunderstorm minus the rain.

[@nigeldepledge3790]

The reason ozone might smell kind-of "machine-like" is likely due to the fact that electric motors often produce a low concentration of ozone when the contacts inside the motor create little sparks. An electrical arc will often produce ozone (and nitrogen oxides).

[@jpolowin0]

One summer, I worked in a lab that did fluorine chemistry. One one occasion, they cleared us out rapidly because they'd discovered that one of the cylinders was leaking. I'd noticed that the air had a bit of a _tang_ that smelled somewhat like chlorine, but sharper.

[@christopherleubner6633]

Can confirm, smells like chlorine and ozone had a baby and it's angry. That was from a 10% F2 in neon used for a large Kr:F excimer laser that had a leaky swagelock fitting. It was post regulator to feed the laser and a very minor leak.

[@Lizlodude]

This has NileRed "does cyanide smell like almonds" energy and I'm here for it

[@defenestrated23]

Rocks come in scratch-n-sniff now. What a time to be alive

[@TV-xm4ps]

I like how he says "it is still QUITE save" and take a good wiff. And you should have people with a great nose doing this. Like a perfume creator.

[@richardpurves]

You wanna smell ozone? Hang around a photocopier in an enclosed room. The corona wires inside generate detectible amounts. I think you once described ozone as smells like a lethal radiation dose feels ;) Yep, very metallic smell to it.

[@Ma_X64]

I have an industrial ozone generator module at home. 20 grams/hr. You can easily get a pulmonary edema but hardly die from the toxic effect itself. You need to be closed inside a room with it for a long time -- hours, may be, to achieve some really bad medical condition. Most of the sympthoms you can feel at first 0.5-1 hour will disapear quite soon as you get to pure air.

[@laurensvisser7623]

Photocopiers smell more like hot paper and toner to me.

[@xWood4000]

​@@Ma_X64 Why?

[@hammerth1421]

Or just live in a civilized place and go down into your local underground rail system. If you ignore the stench of decomposing human urine, that's ozone.

[@richardpurves]

​@@hammerth1421 That usually overpowers things ;)

[@lucienskinner-savallisch5399]

We have come so far in chemistry that we've actually looped back to banging on rocks

[@NathanaelNewton]

As someone currently sauteing an entire pot of cabbage, I found the comparison to brussel sprouts/ cabbage to be quite concerning

[@laurensvisser7623]

I loathe the scent of ozone. I would compare it to mashed up flower stems, with a hint of shredded/sanded down ABS plastic to it. Very hard to compare it to anything.

[@brfisher1123]

It's a shame that there aren't many videos on antozonite/stinkspar despite it being an interesting mineral that contains elemental fluorine, thanks for the video!

[@FUZxxl]

NileRed is going to be so proud of you.

[@supernova8986]

I thought this channel as it grew would get more sane, and here we are the year of our lord watching tom sniff fluorine gas and ozone.

[@Scrumbumbler]

“If you can smell it 1ppm, you did it right” is like the uncanny valley of chemistry

[@baksatibi]

White bread is often served during wine tasting to neutralize taste buds. I wonder what would be the smell equivalent of white bread. I think there are two directions: 1. use an inert gas like Nitrogen or noble gases, or 2: use something that has a bit of smell, but not overwhelming like sawdust.

[@pvc988]

I used to play a lot with high voltage as a kid. The smell of ozone is unmistakable. In very low concentrations it's not even that bad. Smells like thunderstorm (for a good reason).

[@wtfpwnz0red]

Tom: this is safe enough to smell Niklas: yeah, sure

[@Cannabis_Connoisseur]

I seen a video a few days ago talking about how the smell everyone associates from the swimming pool wasnt chlorine, because chlorine doesn't have a smell. The video explains its actually pee that every thinks is chlorine at the pool. Is this true?? Are we all smelling pee at the pool instead of chlorine???

[@timsmith1579]

Chlorine certainly has a smell but chloramines, which are a product of reactive chlorine species reacting with organic matter (i.e. piss), are what you'll get a big nose of in a pool

[@StephenMcGregor1986]

yes, piss reaction human goo and chemical soup, yum

[@SafetyLucas]

I'm going to need a comparison to what gamma radiation tastes like

[@Pendergast891]

'What do you do for work?' I smell rocks

[@jeanettw2341]

This video was disturbingly reminiscent of Beavis and Butthead, and I absolutely love it.

[@DaftyBoi412]

Holy cow, 2 videos in 2 days .... letz goo!

[@stamasd8500]

There could be a little ozone generated when you hit the rock with a piece of metal, therefore it could change the actual smell you perceive. Try to hit it with something non-metallic.

[@kaliumjodid7995]

Love these but the smell can get overwhelming if you crush a large one They also glow blue when heated with a lighter Great rock, 8.5/10 (whenever you find them you will often also get some uranium ore nearby as a bonus)

[@vincentbarwell5943]

I'm upset you didn't go to your previous description of what ozone smells like in your hydrogen peroxide video "A lethal radiation dose feels" "Ya taste the metal"