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  • I am confused you say teeth can be dissolved very easily with acid, but in your sulfuric acid video the killer was caught because they found the teeth while the rest of the body was dissolved in H2SO4.

  • Anyone get the idea that with a tank of fluorine and a tube you have the same effects as a lightsaber?

  • flourine <3

  • Epilepsy screensaver?

  • What kind of weapon can you make out of potassium nickel and iron

    KNiFe

  • i love these videos so much thanks!

  • Oxygen would do the same thing if it hadn't normally a triplet electronic configuration, wouldn't it?

  • 4:23 wow that was very beautiful

  • Tin Fluoride is safe in toothpaste as long as you don't swallow it(particularity bad for children), sodium fluoride... significantly more dangerous but it isn't used anymore, the Nazi connection scared people away from using it for good reason.

    The stuff put in water to fluoridate it is waste from the Aluminium industry, it(hydrofluorosilicic acid) is far more toxic than sodium fluoride, and doesn't provide any benefits to dental health... Tin Fluoride works topically, systemically it's unsafe.

  • If the acid of Fluorine reacts with sodium hydroxide, a *very* toxic substance is formed. So this element should be treated with caution.

  • @Riskteven hydrofluoric acid (EU: T+) is more toxic than sodium fluoride (EU: T) not vice versa, or do you mean something else?

  • @AugustinusSextus I meant toxic rather than the burning/eating property. Ofcourse the acid is more dangerous but rather because it disolves everything at once. The salt sodium flouride is not eating or burning, but it is still extremely toxic, drink it and you will die but slowly and surely.

  • @Riskteven Get burned by hydrofluoric acid and you may die of fluoride poisoning too.

  • @soundspark That's also true. But again, that's the acid and by it's burning properties it also act as a contact poison. JUst tried to warn for that salt of sodium and that acid.

  • Ok, now I wonder if it smells anything like chlorine. (Hopefully I'll never find out.)

  • Show us a video of the reaction between lithium and flourine haha ;).

  • @CroatianProductions Potassium and Fluorine would be better ;)

  • @MrSkinnyBill I thought lithium was the most powerful reducing agent though.

  • @Iamcroplayer and it is...theorically, hydrogen under extreme conditions would be an even stronger reducing agent, but it is difficult to say for sure.

  • @CroatianProductions noooo! lets chose Cesium or Francium :D, ought to be the strongest chemical reaction there is(apart from nuclear which I have no clue about)

  • @kebabsallad Except nuclear reactions AREN'T chemical. They're nuclear. More to do with physics than chemistry.

  • @dean10007 Yet Nuclear Reactions, theories and the whole topic about Nuclear power was discovered and explained in terms of chemistry. It's only in recent times that Physics are able to explain these phenomena with relative calculations.

  • I sense a link between the enamel of teeth being called "appetite" and appetite........

  • flourine laser? anyone? :D

  • but what about drinking water ? should we drink sodium flouride ?

  • @TheFrostymountains

    fluorine compounds can be safe. it's just really dangerous by itself.

  • @TheFrostymountains

    The original study on sodium fluoride in 1935 showed that topically it could have a positive effect on oral health... however if ingested it killed the test subjects(rats), if ingested in very small amounts it gathered in the brain and bones, increasing the rate of cancer, reducing mental capacity and oral health - tooth rot from fluorosis.

    Exact same story with Tin Fluoride, but far less toxic.

    What's put in water is neither, it's chemical waste.

  • cats are composed of iron, lithium, and neon. just get the periodic symbols and put them together.

  • weapon of choice

    fluorine canon

  • I want to see Cs and F, Fr and F would be extraordinary but very unlikely.

  • @boravw1 have you ever found insects living in your mouth? guess why

  • I love these videos. They are so informative.

  • sodium flouride was used as an insecticide, and now I put it in mouth Yikes!

  • seems appropriate that teeth are made of appetite. 

  • @AvoidDrunkDialing - that's very good :)

  • @AvoidDrunkDialing Apatite, not Appetite, but its incredibly appropriate, yes!

  • How the chemists treat their dead?

    They Barium!

  • I never knew how fluoride worked to slow down tooth decay. I have learned something new today.

    That being said - I cannot stop watching your hand motions during the interview segments.

  • chemistry jokes are sodium funny

  • Ali G says; "Re-DICK-ulus hair mun!"

  • wait, there a compound in your teeth called appetite. Who named that!

  • It will react with gold? Well that explains why people are suggested to put a bit of collidal gold in their drink to reverse and prevent flourine poisoning.

  • oh so after you brush your teeth some food or drinks such as store brand apple juice wont taste to your appeal?

  • i really hope the older man does not pass away for a long time

    he is brilliant

  • i want to take all these lame chemistry jokes and barium >:(

  • Fluoride is a toxic bone destroyer. Iodine is the good stuff.

    GOOGLE[ Fluoride Iodine Antagonism ]

    Fluoride in water is a toxic waste byproduct of Aluminum refining, it cannot be dumped directly into the ocean, so they "dilute by dispersion", and have been chemically poisoning the USA and most civilized nations while leaving the water pipes contaminated with toxic fluoride poison. It is one of the largest most vile crimes against humanity.

  • @Matrix29bear I think you mean iodide not iodine. And STFU about fluoride. This video is about fluorine!!!!

  • What happens when fluorine ions interact with soft tissues? Should I be concerned? Is there a biological mechanism for the regulation of fluorine in the body, or is it simply poison? I've heard of ion channels in cells for potassium, sodium and chlorine, but not fluorine.

  • never listened so attentively for that last minute

  • Please refrain from posting comments about Fluoride and tooth decay. This video is on the physical and chemical properties of elemntal Fluorine.

  • @thunder393 What about elemental Fluorine and tooth decay. 

  • 5:56 refer to caption. its apatite, not appetite.

  • @Sigma152rysha Ah, you've beaten me to it.

  • The most electronegative of the elements. fun fact

  • Liquid Nitrogen makes everything more fun react it with fluorine.

  • You know, I really , really wish these videos where around when I was a kid, but heck the internet just wasn't there when I was a kid and the first personal computers started showing up around the time I was 12-13. *sigh* Ah well, that doesn't mean I can't enjoy the videos now :)

  • 5:00 What? Fluorine Sulfide is evolving!

  • Comment removed

  • Hmm, anyone knows what happens when you add fluorine into water apart from making oxygen and ozone? Like, is it violent reaction almost explosive or calm reaction with small flame o.o

  • Comment removed

  • Now lets just add a bit of liquid nitrogen.

  • at 6:21 what does he say? awache groups im sory i dont know what hes saying

  • @ohihaha "OH groups", so Hydroxyl groups

  • So many nerdy jokes xD

  • Comment removed

  • Long term double-blind studies have proven that fluoride in tooth-paste only delays the onset of tooth-decay by a few years but doubles it overall. There is actually a tooth-decay vaccine that was invented in the 90's using genetically modified tobacco plant extract that is applied onto the teeth. It works by promoting a type of harmless bacteria that prevent the harmful bacteria from multiplying. They soon swept that one under the rug to keep everybody on fluoride & buying toothpaste.

  • nice screen saver professor

  • Whats up with his hair...

  • fluorine is the chuck norris of the periodic table

  • 2.18 optics in the urinal lol

  • even Argon???

  • @TheItalianPerson Yes but it is very hard to do helium and neon haven't proven to form compounds.

  • when ever the scientist dies can i get an invite to his funeral

  • What an amazing element! I love the reaction of the fluorine on sulfur.

  • Other than Nickl, what are some other metals that theoretically be used as containers for Fluorine? I understand that Nickel Fluoride (which is the layer forming on the inside of Nickel containers for Fluorine) is one of the few fluorides that is stable in air, but could a metal such as Copper be used to store Fluorine?

  • Isnt the benefits of fluoride a myth. areas in America that do not have fluoride in water etc has better teeth than in other areas and in places where fluoride is used extensively teeth quality is worse than average. plus the fact that fluoride has been strongly linked with lowering cognitive ability (use at an early age can reduce your ability to learn at an older age) ... personally I'm fluoride free where I have the choice., but thanks for the great video.

  • @tasilbhurn Flourides are very beneficial in the quantities they put in toothpaste and drinking water as it hardens tooth enamel and makes it less soluble in acid (the proffesor explains the chemistry of it in a different video) However, excess amounts of flouride, it can actually soften the enamel. In africa, there are some tribes who live on volcanic soil which is high in levels of flouride salts and their teeth are so soft from the drinking water, they are able to cut their teeth into a point

  • @TheAllSeeingToe I've heard that too, but wasnt the 'benifits' of fluride origonaly put forth by aliminium foundaries and nucular processing plant researchers who needed to find a reason for selling it so they waste product. untill sometime in the 50's fluride was a controlled substance and illegal to posess even a tiny amount. also controlling the right ppm in flowing water is impossable.

  • @TheAllSeeingToe that tribe (im very aware of) and they do it to normal teeth, doesnt need to be soft, the girls do it because they think it is attractive. they normally perform it at or just after puberty, they often tell how it really hurts, in one case on film the mother who helped perform it sayed "she cried for days, but she is ok now". nothing to do with soft teeth, many unmodernised people have done it.

  • @tasilbhurn Well done, point well made there. I would find out more to completely make up my mind but theres flouride in the water all the time and no flouride free brands of toothpaste in Ireland so i'd rather just keep my blissful ignorance because theres nothing i can really do about using flourides :P On the other hand, Ireland has the shown up consistently in many studies as having very little tooth decay on average compared to other western counties such as the usa and we all use flouride

  • 20 people are made of fluorine.

  • I would make a chemistry joke but all the good ones argon.

  • @pug6666 Why are Helium, Curium and Barium the medical elements........ Because if you can't helium, or curium Then you might well want to Barium. Chemist's are great at solving problems....... We hold all the solutions..... I think I'm going to hell for that last joke

  • @bunkmasterflex

    He's in the balloon.

  • @pug6666 I too would make a chemistry joke, but it probably wouldn't be worth a nickel.

  • @pug6666 i bet this is a joke you havent xenon here before

  • @pug6666

    lets take all the bad science jokes and barium

  • @elflordbob1 We don't have to. All the bad science chokes argon.

  • @awesomejoe12

    lol i see what you did there

    call me DNA Polymerase cause i will unzip your genes(jeans)

  • @elflordbob1

    DNA Helicase would make more sense for that joke :)

  • @elflordbob1 lol wrong enzyme :]

  • @elflordbob1 Barium where? I can't drive anywhere. My Carbon in the shop for quite some time. :)

  • Yo mama is so ugly, even fluorine won't bond with her

  • @aftershock5313 hahaha

  • @aftershock5313

    Yo mama is like Fluorine, she'll react with almost anyone.

  • My mother always told me not to eat candy before dinner, because it would spoil my apatite

  • this youtube advertising is beyond a joke

  • I enjoy this video.

  • What the hell is wrong with his computer at 6:04 ...?

  • Hmm. I wonder what happens if you used flourine with an alkali metal.

  • @kitty6837 nice question! it'll burn it much vigorously, hogging all the electrons, or maybe one! If you see akail caesium with water, think of it as ten times worse. Flourine wants eight electrons, so it takes the extra electron an akali metal wants to give, and a happy family at last.. although u might not be with a blackened face -_-

  • Maybe I can't see it, but I can't believe they aren't using a hood. Fluorine and the products made during its reactions, especially with sulfur, are quite toxic...dangerous in the low ppm levels.

  • @Bubafat it is true that is toxic, but they dont need helmets because it is reacting with the other elements as soon as it got out, so it was not much harm. But if it were to come out over a long distance, chances are it will spread and under this condition, it is toxic.

  • @Bubafat and it will evaporate away from them

  • his hair looks like the iron wool they were reacting

  • umm if fluorine reacts with anything except Ne and He, why's it not corroding the tube ?

    are large molecules more inert or something ?

  • @StarSpawn06 re-watch from 4:12, it does react with the metal, but once the surface is corroded, the remaining fluorine cant get to the rest of the metal

  • @fluffernutter03

    ah I see. I got the impression that they were passing the fluorine through a plastic tube :/

  • @StarSpawn06 well at some point they do pass it through a plastic tube actually, in the beginning when they freeze it, but i have absolutely no idea why it doesnt react with it, or maybe it does react, just really really slowly? dont know lol

  • shudn't C be inertial to F2 ?

  • Next let's see him mix fluorine with caesium.... yeah

  • @jq747 cesium and fluorine? u want Hiroshima in the lab?

  • Fluorine is the queen of the periodic table

  • @illumined1

    What's the king? Francium?

  • aww yellow, looks just like severe dental fluorosis,

  • Probably few knkows tihs, but PTFE a.k.a. Teflon, is a Flurorine based compound, and if heated to 260-280°C it starts to give off a very toxic gas, which may enter the food or be inhaled.

    "Teflon-fever" is a phenomenon where some rolls a smoke after getting PTFE on their fingers somehow (heat vaporized PTFE), it can be like a very bad flue and hit almost instantly.

    Fluorine is not healthy. The teeth need so little of it it is almost unbelievable.

  • That was really cool

    

  • who else was watching the screen in the background when he was talking about flouride?

  • now put liqid flourine in a bucket and thruw sulfur in :)

  • I wonder what would happen if all of the halogens were reacted together at the same time (excluding astatine, which only exists as a few million atoms globally at any given second)

  • Thanks alot for this video!

  • now i'm one of the few people who have seen fluorine

  • There's a video on youtube of fluorine oxidizing a brick.

  • When does the effect on your teeth wear off?

  • I WANTZ Fr + F! :D :D :D :D :D :D

  • @geter14 That's not going to happen. Francium is in such trace amounts, it cannot be isolated and stored. Plus, it decays in minutes (Fr-223 has the longest half-life of francium isotopes, and its half life is still just 21.8 minutes). That being said, cesium with fluorine ought to be interesting.

  • @BlackSkullRacer613 Well I guess you are a little bit more educated than me, and I dont really get that but... I can accept it! :)

    Still seems like a really bad idéa! :p

  • 20 people are religious nuts whose minds are closed to so many things *in the words of sheldon cooper, or sheldon copper (sharp intakes of breath)*

  • sulfur hexafloride makes your voice deep and stops eletric currents

  • I found me a barbecue lighter. Where can I purchase some fluorine?

  • I think it's 100 ppm or something. Make sure of it, because I'm not sure. At about 9 ppm you can smell it. Or is it ppb?

  • how much of Fluorine gas in air can be toxic and dangerous to breathe?

    and what are the side effects?

  • Is that alcohol thats he's using to remove the condensation?

  • @M1ST3RHYDE Pretty sure he was just wetting it with water. Like if your shower glass steams up, you can spray they shower water on it to clear it up again.

  • @OOZ662

    I was thinking Denatured Alcohol, Water should freeze on the glass.

  • Wow, I have always been fascinated by #9 on the Table, but never seen it in action. These guys keep just getting better and better. Thank you for doing that!

  • Reminds me of austin powers..

  • hew, what reaction occurs between cesium and flourine? I know sodium is reactive with chlorine but what would cesium do if it were to be in touch with flourine?

  • I had HAZWOPER (Hazardous Waste Operations and Emergency Response) training this week.

    When we got on the subject of corrosives, I mentioned your fluorine video. The instructor is familiar with your work, but had not seen this video. The next day, we saw the video in class. :)

  • My chemistry teacher, when he was MUCH younger and the rules for chemicals in schools were much looser, was once being shown liquid pure bromine (I think) by his teacher, and his hand slipped, and a drop landed on the webbing between his thumb and first finger. It burnt straight through.

  • @breakingstuff1 Ouch. I did that to my thumb once, and the bromine left a large, but beautifully cauterised wound.

  • so..rinsing fluorine is better than listerine

  • appetite and teeth......... XD

  • absolutely amazing !

  • @gigglepox are you joking? or just trying to be a douche?

  • @gigglepox moron..

  • @gigglepox you dont know any thing fluorine is reaactive i had a glass ampule of it and i encased it with steel wool and broke it and the steel woll caught on fire

  • @herpdude122

    you can't put flourine into a glass ampule...it reacts with water to produce HF which then etches the glass. thats why even on those periodic tables with pictures, you usually don't see an actual picture of flourine.

  • and tell us why we have to DRINK FLUORIDE WATER

  • @jetsamjetsam because we are trying to kill or sterilize you so that you do not reproduce.

  • @jetsamjetsam They answer that in the video. It's the same reason we use Fluoride toothpaste. Fluoride is an anion that has already filled the vacant orbital space with an electron. Fluorine gas is dangerous, but the Fluoride anion is safe and useful.

  • @jetsamjetsam Flouride is not the same thing as flourine. Flouride has an extra electron. So it's not as reactive anymore.

  • Apatite great in teeth and bones... piezoelectric stuff

  • thumbs up who looked for better toothpaste

  • I love this series and the "mad scientist" looking fellow, but I'd like to see him try and justify putting sodium flouride in the public water supply.

  • @lezsmokehaze420 The reason is the same as for putting sodium fluoride in toothpaste.

  • @DevilMaster Oh really?So you swallow toothpaste?It's already been proven that there's no benefit to putting fluoride in drinking water.There have also been tests that say it has potential to cause cancer and other bodily harm. The nazis were the first to put fluoride in drinking water at concentration camps because it makes people docile which is why its used in pharmaceuticals like fluoexitine(prozac). I'm not some lunatic conspiracy theorist by the way do your own research if your unsure.

  • @lezsmokehaze420 It's inevitable to swallow a small amount of toothpaste every time you rinse your mouth after washing your teeth. And BTW: Godwin's law. You fail.

  • @lezsmokehaze420

    "So you swallow toothpaste?"

    Yes, and so do you, and anyone who brushes their teeth

    "it has potential to cause cancer and other bodily harm"

    Does does water, and oxygen ...

    "The nazis were the first to put fluoride in drinking water"

    GJ making that response from an answer you read on answers.com !

  • @lezsmokehaze420

    "which is why its used in pharmaceuticals like fluoexitine(prozac)"

    Prozac's primary pharmacodynamic effects are due to the prescence of an amphetamine tail on the diphenhydramine backbone of the molecule, not the trifloruomethane moeity.

    "I'm not some lunatic conspiracy theorist"

    I think you might be

  • @lezsmokehaze420

    "by the way do your own research if your unsure"

    I have, thats why I think you might be a lunatic blah blah. BTW I didn't just 'research' anything, but have the degrees pre and post doc in biochemistry to back up my statements ... opposed to your answers.com or wikipedia derived answers

  • oh no what happened to the cool screen saver?

  • His hair is made from wire wool!

  • Mmmm this discourages me from becoming smart.

  • lets try to react his hair with some fluorine

  • @valarauco89 y not try yours??

    that old man is tryin to spread some knowledge, so show some respect.........

  • @valarauco89 don't be a dick, asshole!