Barium - A Metal From The VACUUM TUBE!

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So, today I will tell you about such metal as barium. Barium is the most active of the alkaline earth metals, it is located near the bottom of the 2nd group in the table of chemical elements. Like many active metals, to protect it from corrosion, barium is stored in either mineral oil or kerosene. Externally, barium looks like a gray metal due to the oxide layer covering it. The hardness of barium resembles lead, you can cut a piece of barium with a pair of pliers. On the cut you can observe that the shiny metal surface quickly oxidizes in air and tarnishes. Since barium is the most active of the alkaline earth metals, it reacts very actively with ethyl alcohol forming ethanolate barium and hydrogen. Though with water barium reacts even more vigorously, releasing large quantities of hydrogen, also forming, during this reaction with water, hydroxide of barium. Barium hydroxide is only slightly soluble in water, and hence the solution becomes turbid.If we add the thymolphtalein indicator into the glass with barium hydroxide, the solution will become blue due to the alkaline environment within the solution. By the way, soluble compounds of barium are toxic and you need to be extremely careful while working with them. For ions of barium there is a very good quality experiment we can do. If to the solution of salt of barium, such as the barium chloride, we add some sodium sulfate, then what will form is an almost insoluble in water white precipitate of barium sulfate. This reaction is very sensitive and it can be a very helping hand in detecting even small concentrations of sulphate in water. By the way, barium sulfate is used in medicine for x-ray studies of the gastrointestinal tract such as the Radiocontrast substance. Barium metal on its own burns quite well in air. However, due to the relatively low melting temperature it does not burn completely, and burns with pumping action. I think this behavior is caused by the partially formed peroxide of barium, which reacts with the metal barium, and in that time the combustion is briefly enhanced. As a result of barium burning in the air we get oxide of barium. This oxide is used to create high-temperature superconducting ceramics, as well as an additive in the specialty glass GroGlass with low refractive index. On the surface of a tree barium burns more intensely because of an additional reaction with the cellulose from wood. If a piece of barium is rubbed on a file, you will notice the formation of small sparks, from the combustible particles of barium on air. Like other active metals, barium can react with sand, recovering silicon from its oxide. With sulfur the reaction goes rapidly, as with strontium. Nowadays the metal barium is mainly used as an additive to aluminum alloy - silumin. In the heyday of tube radio, barium was used as a getter, that is the absorber of gases in vacuum tubes to maintain high vacuum in them. If you break a lamp, you can see how quickly a thin layer of barium oxidizes. Also, compounds of barium are used in pyrotechnics to create the green color. Now you have learned more about one of the elements, if you want to continue the series with metals, subscribe to my channel and give some likes to see many more new and interesting!

[@o0oSolidSnakeo0o]

'Today I will tell you about such metal as...' is why I watch these videos

[@sanjchiro]

Gastro-ingestical tract! Brilliant 😁

[@r.awilliams9815]

Believe the toxicity warnings, I've been poisoned by barium nitrate while making green stars for pyrotechnics. It was a very unpleasant experience indeed, and it didn't take much to make me ill.

[@medexamtoolsdotcom]

Why didn't you use copper salts then? Copper is what is supposed to be used for green.

[@flow4458]

@@medexamtoolsdotcom Maybe it's not only about creating any green tone?

[@amirmoshir2239]

You made perfect videos and maybe most scientific ones. rare people know about all chemical elements and it's very surprising to know about them. Describing all elements with their properties in just a few minutes. Your accent is lovely too.

[@godfreypoon5148]

Barium is what comes after killum.

[@TheLightningStalker]

Barium in the dirt

[@naydacolunga4992]

Soulium

[@graphite2786]

I always wondered why vacuum tubes had that shiny bit on top, thanks for enlightening me Thoisoi2 :)

[@medexamtoolsdotcom]

Well it was OBVIOUSLY a getter to absorb any errant air (other than the argon), the only question is what metal it was. I always thought it was cesium or rubidium, actually, because I heard that somewhere and that made as much sense as anything else I might have come up with, but maybe I was lied to. I don't know, does barium react spontaneously with nitrogen? I know magnesium burns in nitrogen so maybe.

[@manjulaprakash4234]

@@medexamtoolsdotcom how do u know all these things

[@alexoftheway8169]

Thanks Thoisoi, you've taught me a bit more about the vacuum tubes in guitar amps. It's great to know and see something new, keep up the good work.

[@PelisyJuegos_]

I wish I've had a teacher like you in my school days.!

[@lajoswinkler]

I like how you're showing reactions often neglected in Anglosaxon-speaking regions, but common in other countries' education systems. There are plenty of channels trying to do the elements series, but they are copycats that don't show anything new on the Internet. Your channel is special in this case.

[@BothHands1]

Lajos Winkler Ba + H2O -> BaOH; and BaCl2 + NaSO4 -> BaSO4 are pretty standard reactions. It's a great video, but no reason the group "anglo-saxons" w/e that even means, and say they aren't doing it. Have you seen NileRed or NurdRage?

[@jonweinraub]

@@BothHands1 and of course The Periodic Table of Videos from Sir Dr Martyn Poliakoff. With many started over a decade ago. It’s a fantastic series. As is CodysLab. Nile is also amazing. I’ve learnt more with this lot than University, that’s for sure. Or rather it made it click more. I can’t say Sal Khan helped me unfortunately it was bad as the lecture but I get it you need the theory. These demonstrations help make the theory click, even if it’s 20 years later!

[@lapetitefleur3482]

Yes indeed

[@peterfordyce7003]

Thanks, that was very interesting. I never realized the metal coating the inside of vacuum tubes was Barium.

[@SAPD.]

Bariumoxide is also used as a cathode coating to decrease cathode temperature to release elektrons. => longer cathode life, thus tube life.

[@tokajileo5928]

you said barium salts are toxic then you mentioned BaSO4 used in medicine, not explaining why BaSO4 is not toxic. It is because it is not soluble, Ba2+ is what is toxic but BaSO4 is so stable so unsoluble it is the only non toxic salt of Ba.

[@Ktulu789]

I always wondered why most vacuum tubes had that zerkala part! Awesomeee!!! (my russian is rusty as Barium in air as I'm still learning it :P)

[@savannahrae9122]

I love these videos and your accent makes them sound so cool! Thank you for doing these experiments in the video too and showing their practical uses, it makes it very interesting and allows people who are not super clued up to still enjoy the video and understand what the element does or is used for. ❤

[@awesomefacepalm]

If you can't helium or curium, you barium

[@krishnagaming4488]

What

[@dictionarypictionary9872]

he said 'If you can't helium or curium, you barium' @@krishnagaming4488

[@BothHands1]

10/10 😂

[@medexamtoolsdotcom]

And those silicons can't get away from the coppers, they'll be lead to iron bars. All these puns are so boron.

[@uTube486]

"If you can't heal them, or cure them, you bury them".

[@omarjamal4830]

Ur accent is a huge part of why I watch ur channel 😊

[@laurdy]

the cathode of a tube actually coated with barium oxide so it emits electrons at a lower temperature

[@donaldhoot7741]

Barium enemas are always fun too!

[@cyrilmatthew2995]

ur videos are very entertaining, educative and stress buster ...

[@phuongphan-dh1yo]

I love to watch your videos so keep posting more :33

[@NiranjanDixit23]

your videos are really fascinating and I wish I could do all these at home... can you mention in your video as to which simple experiments can be done and observed at home with household items containing some of the elements in your channel?

[@sgull4953]

Niranjan Dixit see Cody's lab

[@louistournas120]

Check out how chloroform is made. You can do that with household items. You need acetone (propanone), a strong base like NaOH and chlorine (bleach would work).

[@lajoswinkler]

louis tournas, bleach is not chlorine and chloroform is not made using chlorine, but hypochlorite anion. If you don't know these basics, you better not play with such reactions.

[@brys555]

3:58 RIP 6Н2П

[@michaelmellon45]

I always love your videos. Very educational.

[@shubhamrawat3366]

im enjoying every video of yours. This is amazing

[@rex2d292]

Thank you for making this video i was wondering what that metallic looking shine was at the top of the vacuum tube

[@snaj9989]

0:30 you can see the blue wire cutter. Creative channel using the same one, I am using it too. Its great for 2 bucks

[@faktCheck]

good video mate.. keep up..!!

[@edgeeffect]

I've been watching loads about vacuum tubes recently.... I've been thinking "yes, but what is the getter made from"...... so thanks!

[@saintbrush4398]

Awesome videos!

[@vickielawson3114]

LOL @ "Gastro-ingestical"!

[@cocomckoy4064]

Great video

[@kjpmi]

"Gastroingesticle" tract. lol

[@medexamtoolsdotcom]

That was even better than how he pronounces ceramic keramic.

[@uTube486]

Can you speak Russian? Don't make fun if you can't.

[@edgeeffect]

@@uTube486 or Estonian?

[@prshntkmr173]

i wish we would have been tought like this in our school then i would have definitely chosen chemistry as a career i was quite good in chemistry in my class but in our school and in my home also much emphasis was given on passing the subject get good marks and earn money so i opted for medicine instead of choosing CHEMISTRY

[@KowboyUSA]

Good video.

[@420sakura1]

I wish I had seen these bids back in 2010-2014 when I was studying chemistry.

[@sectorforall1760]

good video!

[@zaidaesmuybellalamusicades4485]

Es peligroso para la salud ?

[@savyasanchighose5176]

it is very good effort

[@matty8944]

Please do a video on Uranium!

[@siyuyangzhang6995]

Could you also do Mg and Ca?

[@dkiproch]

no yiu now a little bid mohr abought one of zee uzer maatals 😂😂 nice English anyways I subscribed

[@davidarundel6187]

An ingredient from which Barium Meal, is given in some instances in hospitals - ct scans & the like.

[@andredearaujorodrigues7725]

Vc esqueceu de falar sobre o sulfeto de bário

[@jamesrindley6215]

Are there soluble Barium salts in the fumes from the combustion experiments?

[@lifewithkiyokoandnatsuki8109]

Can you do a video on how to reduce alkali metal salts to metals??

[@shaconstantine]

it'd be appreciated if you, once in a while, strayed from the convention of discussing particular elements, overall very interesting content.

[@kolunbaby2822]

Plz make a video on calcium metal.

[@AlexCab_49]

Please do Radium or Radon!

[@tungtranba8231]

Alejandro Cabrera u are wrong...do thorium,uranium,neptunium,plutonium

[@rajareddy6208]

Hi sir can you help me to find out anti iron mix active metal

[@ghughumaal3284]

Phenolphthalein giving blue in basic soln? I heard it only shows pink

[@3800S1]

Ah so thats why valves go from metallic to white after breaking them.

[@speculesgorgoth4055]

Is there a resonant frequency chart which correlates to the periodic table. = Phd

[@Robert-jx8nr]

What would happen if you breathe in that smoke or get it on your skin when he mixed barium with alcohol?

[@TheTreyBlue]

I don't understand anything but damn this video is interesting

[@theinternetstolemysoulbuti2740]

pierre11167 Chemists dont like to admit it but elements are laid out according to how many Jews it contains.

[@explosivefreak666]

The internet stole my soul but it gave me Overwatch : HaHaHaàà.. Damm good one.!! :))

[@medexamtoolsdotcom]

If you want to understand even less, turn on subtitles.

[@seanb3516]

Are we going to kill Archer? Yes we are other Barium...yes we are.

[@nate6529]

don't kill Sterling why couldn't you of stay on the space station

[@seanb3516]

My thoughts exactly. You're not an old gypsy woman by any chance, are you?

[@ghughumaal3284]

It must be bromothymol blue or thymol blue. Considering low concentration of OH pH must be in range of bromothymol blue.

[@pleasehelpicanneverthinkof5026]

"Barium is the most reactive of the earth metals" *RADIUM wants to know your location*

[@LucarioBoricua]

Radium decays very rapidly and one can't quite experience it reacting.

[@nate6529]

alkaline metals are like my friend, reacts to alot and he only has one (meaning one electron on outermost layer)

[@diymetric9792]

Nate lol

[@TheMontanaDave]

Barium is used a LOT in automatic Fire Systems.

[@astronom_nolep]

What song in your backsound video??.

[@Bloated_Tony_Danza]

The element is named after bears because barium and it's minerals are really heavy. It kinda feels like lead. And apparently so do bears

[@mtalhakhalid1679]

nice video nice cat😍😍

[@speculesgorgoth4055]

I don't believe anything you say until you got the crazy scientist hairdo. Ty for your work. Resonant frequency please. Magnetic properties please.

[@oscarmuffin4322]

Burns with pumping action, now we can see your true slav coming out.

[@Astatum]

bariuummmm

[@ReDMooNTVV]

Nice video, you can improve something though. If you could speak a little less close to your mic it would be nice or perhaps get a new mic

[@mrnix4010]

Let's see Plutonium, please?

[@hilldwler420]

Bring back the vacuum tubes

[@Curi0u50ne]

My EF95 vacume tube at 03:54🤩

[@medexamtoolsdotcom]

Wait a minute, you think barium is used in pyrotechnics for the green color? I don't think so, I think they use copper. They wouldn't use barium for that, it's more expensive and much more toxic, copper is dirt cheap and it makes a very good green.

[@ahmadalmasarani523]

i just got Rb (rubidium) 37

[@AustinAdams]

So this is what we’re breathing.. lol

[@koodude2313]

"whacuum tube" lol

[@tnminhkhoi1398]

koodude2313 hahahha

[@simranjoharle4220]

Wow after watching such an amazing video....all you remember is that?

[@FlatBroke612]

koodude2313 I'll whack my tube as I see fit!

[@alexisplanque-bonini9939]

Desu

[@Trident_Euclid]

THESOS Tec Potassium

[@hashidatackey8758]

Nixie tube?

[@ngcf4238]

Are you from Russia? Some Slavic region?

[@medexamtoolsdotcom]

Barium is the most active alkaline earth metal? What about radium. I'll bet radium is more active. In more ways than one.

[@pierreuntel1970]

thought he is going to do berium

[@medexamtoolsdotcom]

What should you do for someone who eats his chemical element collection? Bury 'im.

[@jorgetzolov9109]

It is funny to put the Auto-subtitles in English. in 1:36 you see "The soluble compounds of cockroaches are toxic"....

[@FlatBroke612]

NUCLEAR WESSELS!!!

[@NiranjanDixit23]

This video is about Barium

[@ms9105]

Hi ! Let me help you.. it's not keramics. . It's spelled as seramiks

[@lorenlange4866]

My cats would be on those chips like flies on shit.

[@davecrupel2817]

17 minute club :D xD

[@husamosman9246]

3rd

[@BossOfThisHouse]

K root O, zae bis

[@azazelsamael6957]

Get here after watching 'metallica all nightmare long"😁

[@irsyadhakinen4493]

HEWWO EWYWAN

[@SupremeBobb]

Excuse me, but Radium is more reactive than Barium

[@AdityaKrsingh-fb5fj]

2 nd

[@Arthur_Wayne]

4 th

[@luckyblaze4656]

FIRST!!!

[@ismailerdem2060]

Add a little english

[@TheReligiousAtheists]

72nd like...

[@pantherplatform]

Kurrammicks

[@mofkergt]

Cant undarstand his accent D:

[@diymetric9792]

Mofker GT RUSSIA

[@aaronlandry3934]

Mofker GT He's Russian, give him a break.

[@ausintune9014]

what??? i can hear him perfectly!!! i guess my parents are russian and have russian accents

[@ismailerdem2060]

Please put turkish subtitle

[@godfreypoon5148]

turkish subtitle

[@baileyable]

i think im first or its youtube saying i am... stll!

[@nicknuwe]

Hey, I don't know if you're trying to improve your pronunciation for your videos but if you can't pronounce the "th" right, maybe you should pronounce it as a "t" or a "d" instead of an "s" or a "z".

[@cdautrey]

Bet you a month's paycheck he speaks English better than we speak Russian...

[@alineharam]

I’m sure our wise elements teacher is aware of his accent. As for the recommendations, I suggest we also try to understand the non-standard utterances.