Argon - Periodic Table of Videos
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- Опубліковано 29 лип 2018
- A new and improved Argon video.
More links and info in full description ↓↓↓
Featuring Professor Sir Martyn Poliakoff and Senior Technician Neil Barnes at the University of Nottingham.
Videos on all the elements: bit.ly/118elements
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From the School of Chemistry at The University of Nottingham: bit.ly/NottChem
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Argon is used extensively as a sheilding gas in welding.
TheUnnamedGent I know it's used in mig welding. Not sure if Tig welding too.
cpt nordbart Yes also used for nearly all TIG welding. You need it for the inert atmosphere but the voltage at which it ionizes and hence the temperature of the arc is also a consideration. For this reason you sometimes use helium or a mixture of helium and argon to get a hotter arc.
For MIG welding steel you usually mix in about 20% carbon dioxide with the argon. I'm unclear what the precise reason is for this.
TIG welding uses argon, MIG uses a 75/25 Ar/CO2 mix for ferrous metals and Ar alone for non ferrous metals.
Officer KD6-3.7 it still depends with tig, I've seen helium used instead of argon
Drakeblood Assassin You use helium sometimes for thicker pieces of aluminium. It has a higher ionisation potential so you get a hotter arc.
I am surprised he didn't talk about argon being used for TIG welding. Argon is a great gas for shielding when welding to prevent oxidation in steel.
Tbh The Prof. Doesn't look like much of welder...
@@jakebearinger8663 his hair would have burned off long ago
0:27 For all of us who know how truly brave this man is.
after hearing all that's involved in creating a compound of Argon, I'd say it's still pretty accurate for its name to derive from the Greek for "idle"
I want to find love that feels as sweet as this man's love for argon.
The explanation of why liquid Argon is transparent to infrared light was fascinating! Love the videos. Thank you.
I bet argon is even less toxic than nitrogen.
Rohan Zener Nitrogen is not toxic at all. Most of the air you breath is made of Nitrogen.
Nitrogen only becomes 'toxic', or should I say, narcotic, at higher pressure. (e.g. Scuba diving at higher depth).
It gives you a pleasant, albeit very dangerous intoxication ;) Quite similar to alcohol really, without the horrible hangover.
It's actually very unpleasant, and toxifies by clogging the arteries and capillaries. It's called an embolism.
I heard pure oxygen could indirectly cause cancer. I took it with a grain of sodium chloride
I grew up in an extremely cold town in northern Minnesota (it can get to -40 in January) and the main industry in our town is windows and most of them are double glazed (sp?). I always knew they had argon in them for insulation but I never knew exactly why until now. Thanks for the video professor!
I know ALL the elements are done, But please keep them coming.
Personally, I could watch or listen for over an hour just on one element.
I wish I could have a drink with you Sir Martyn Poliakoff
I need a lamp like that so I can label the switch argon/argoff.
I want that lamp.
I remember my sister had a neon pink playboy bunny lamp like that
You know it's a great day when there's a new periodic table video!~
i would love a video talking about all the books on his shelf!
I didn't find it at all boring that my double glazing might be full of argon, thank you.
I'm wondering if I can connect a neon transformer to my argon-filled windows, and make them glow :)
ForestCat_Peter if u do so. Please post it here.
Depending on the pressure, yes. Why not?
If the pressure if low enough, you could try holding a plasma globe near the window, and observing the color of the glow (if any).
Your windows won't be at vacuum, so no
As far as I remember you need quite low pressure for those gas discharge lamps. That might bend the glas panes and break them. But could also be that they are fine with bending a few mm inwards until they touch each other. The other thing is, as soon as there is a discharge path nothing else will light up. So don't expect the whole window to glow.
If you would have electrodes inside the window, yes. But all multi-pane windows i know, have a single strip of metal round the edge.
You could, however, ionize the gas with a high voltage, high frequency EM field. You can take out the electronics from a plasma globe, connect the ground terminal to the metal strip, and get the other electrode near the window.
I think it would be hard to get it working because of the minute space between the panes.
I was going to make a pun about this video, but all the good ones argon :(
You make to seem puns about puns pretty well.
I bet you are *master-baiting* us
I xenon either, non at all.
@@lutfalasker5371 I guess it's called metapun
Ar, so they Ar - or Ar they?
(Yes, probably!)
;)
I don't think you'll get any reactions from this...
Hey Periodic Videos,
I loved that you showed how violently the argon escapes from the copper coil once it warms up.
As a chemistry student my supervisors always told me to be careful to not condense Argon while working under inert conditions and low temperatures, because, as we've seen, it boils very vigorously an can explode your glassware. Now I've finally seen that!
Thanks
Your mug looks exactly like the one my daughter bought me on Father's Day because she knew I liked your videos. It's my current favourite.
I use argon, lots of it, daily. A cylinder or two at best. We use it as inert gas for welding (MIG and TIG), or if combined with CO2 as an active gas. (MAG)
Usually,instead of argon,acetylene is used;but aron is a better choice!
@@aparnavellala624 acetylene is used for oxyfuel welding or cutting. Argon is used to shield the weld pool for tig and mig. preventing it from getting defects
I just had argon windows recently put in and I have to admit they do in fact insulate much better than the other ones we had.
Zeldas Champion can they be refilled?
vacuum ones are better
Thank you for continuing to produce Periodic Videos!
So happy this video was made! I was looking for a video on Argon a few weeks ago, this is perfect!
I always learn new things when they put out a new video, even if theyve done one before they always add new lessons in the redux! Love ya professor!
R3D33M3R; All hail the Brotherhood!
Argon is also used as Buffer Gas in many UV emitting Mercury LP and MP lamps.
Argon is also sometimes used in dry suits when diving, especially with helium mixes, because of its superior insulating properties compared to air and helium
Neil is the unsung hero of these videos.
That was a great video! Fairly easy to make it into liquid form.
My favorite element. Here in Saskatchewan we use triple glazed windows to deal with -40 and lots of wind.
I thought it was because the mosquitoes up there can drill through single-pane windows :)
Jeff Spaulding Well that too.
Neil is the most chilled laboratory assistant on the planet 😂🤣🙏🙌
The legend is back
Did you just make a video about argon without even mentioning an argon laser!?!?!?!
You DID!
When I heard double glazing I was expecting doughnuts.
As a professional glazier, I can verify that the use of Argon gas in windows is absolutely effective as a insulator. Awesome series Gentlemen and ladies. I have enjoyed and look forward to learning more.
I've missed my usual dose of Periodic Videos and Prof Poliakoff; been off getting all Deep Sky, Objectivity, Sixty Symbols and Computerphile'd up. Damn it, we are so lucky to have all these amazing channels as part of our learning - I fail to see a problem
It's amazing that different gasses shine different colors when electrified! Awesome video
Nice explanations and discovers about ARGON and its compouds. Thank you !
Your voice reminds me of my grandpa when he used to tell me stories when I was little. Thanks for that.
KRS-5? I loved his stuff back in the 90's!
Nice "moving light" at electrodes
As a member of a group carrying out experiments with Breathing gasses in a Hyperbaric environment in the early 70's I can vouch for the fact that Argon was very quickly found to cause unpleasant reactions when included in a breathing gas mix. Even Helium can cause problems with the brain's electrical system (HPNS) at elevated pressures/percentages.
This is my favorit peiodic video to date. Great job!
Argon is used to displace air inside bottles of wine and spirits, to keep the drink from oxidizing.
More videos with Neil!!! Yay!
Many Thanks Professor. !!!
Great video! Keep up the good work!
That is a beautiful shade of blue when a current is run through argon
Anyone else remember The Argon Quest (Blizzard Island?) I loved that movie. I keep forgetting the name of it though, so thanks Martin for making it pop into my head with such a noble passing of gas.
Argons is also used in Inductively Coupled Plasma techniques (ICP-OES, ICP-MS, etc)
Blessings upon you for the help you gave to the work I am doing.
Neil content! New Periodic Video! Happy!
Can you guys please make a video explaining the structure of the atom (with orbitals ,sub-shells and 3D animation of the shape of the the orbitals).
I Know that I am asking too much (3D animation of orbitals) ,but again it will be very helpful for everyone who likes physical chemistry. :D
harsh prajapati I would like to see the structure of each shell as one increases from each various element.
+Litigious Society
_I would like to see the structure of each shell as one increases_ [etc.]
That _general_ information is fairly easy to find online, but there is a subtle rearrangement of electron configuration which occurs in the coinage metals (Cu, Ag, Au), which lends them their monovalent tendency - and for which nowhere have I ever found an explanation.
So, yes - I'd go with your suggestion if it would tell me that.
Cheers ;)
+Jack Sainthill - yes, it gets complicated with the d-block (transition) and f-block (lanthanide/actinide) elements because you have to consider the relative stability of the full s-orbital compared to half-filled or completely filled d-orbitals and f-orbitals. In general, d10 s1 is a lower-energy configuration than d9 s2. That means copper, silver and gold have one s-electron and can adopt the +1 oxidation state. (Copper also commonly takes the +2 and gold the +3 state, which involves losing one or two d-electrons.)
Argon is the king of noble gases for me, just because argon tubes emit such lovely hues.
Argon is actually cheaper from some suppliers than N2. All the air-sensitive chemistry the labs I was in was always done with Ar for this reason
Not only do the (relatively heavy) atoms of Argon move more slowly than, for example N2, but, because energy increases as the square of velocity, they transfer less of it with each traversal between the panes of double-pane glass.
Challenge: create foamed glass from molten glass and pressurized Argon.
John Payne would that even be transparent, or would the glass bubbles look opaque?
Translucent to opaque, depending upon the thickness. It wouldn't be useful for windows, but could be a more inert and more durable replacement for rigid plastic foam insulation.
Also, Argon has only about half the heat capacity of air (by mass). So a given mass of argon will contain only about half the amount of heat. I imagine that's a factor in its low thermal conductivity. Its heat capacity is lower because it has no rotational degrees of freedom, unlike oxygen and nitrogen.
The power of the '80s is strong in the pictures of the old apparatus ;)
Argon and Oxygen walk into a bar.
The landlord points to the door.
"We don't serve noble gases, get out!"
Argon doesn't react.
Cool video, especially the beginning !
The professor has terrific knowledge
I find the world of chemistry so fascinating I wish I had the equipment and the time and more of the knowledge to do it on my own.
One very important use of Argon that I'm surprised you didn't mention is in TIG welding. TIG stands for Tungsten Inert Gas, and the inert gas that is used, the vast majority of the time, is Argon. Its weight is very good at displacing air (as you mentioned) and thus it is perfect to use when you need to create a weld that isn't affected by Oxygen.
very interesting, always looking forward to your videos I never knew argon was used in double glazing.
Where have you been? Great to see you back.
Cool Video, It Nice To See A New One !
Could you do a video on the chemistry of cutting onions and why it makes you cry
Argon is used for industrial gas shielded welding because, as the video said, it is very good at dissipating other gases and the fact that unlike Nitrogen, they don't react with most elements at high heat.
Way to go Dr. Neil !!!
As a neon bender myself, might I add a small note about the color demonstrated with the argon light in this video.
Argon does not glow like that on its own. Argon is a nice dim lavender which is difficult to see in a lit room, which is why we typically mix it with mercury gas in order to pair it with double phosphor coated glass (since plain argon will not be bright enough to make the glass glow). To my knowledge, mercury does that to neon as well, and we use it with neon mostly for glass that will be used in a colder environment... or whenever we run out of argon and are too lazy to order more. I haven't tried it with other gasses as we don't usually stock them.
Thank you!
That is quite enlightening
0:26 Excellent demonstration of percussive maintenance.
Fun fact about argon: it's so common in the atmosphere because potassium-40 decays into it, with a half-life of 1.25 billion years. The atmosphere started with very little of it, just like the other noble gases, but it slowly accumulated as the K-40 decayed to Ar-40 (and Ca-40). The K-40 --> Ar-40 decay is the basis of potassium-argon dating.
Extremely interesting!
And protecting welds during welding. Such as TIG and MIG welding.
Argon is also used to cool the electronics (specifically the seeker heads) of infrared guided missiles. This gives the detectors a much better sensitivity/resolution to temperature differences between the target and the background. This is particularly useful in desert environments during summer where the temperature differences would be much less.
The name argon comes from the Greek for lazy, because it's a heavy gas that just doesn't react much. But it's the most abundant of the inert (unreactive) gases after helium, and it's put to work in many ways. It's idleness makes it perfect for adding to light bulbs to stop the elements from burning out. It's used in between glass panes in double glazing and in steelmaking to stop ingredients from oxidizing. It makes brilliant blue lights!
Went through about 300 bottles of Argon during my welding and plumbing work. Handy gas!
Argon was used in the steel industry for cooling copper molds when making steel. Copper and steel don’t mix or react but the melting point of copper is lower than steel. The argon keeps the copper from melting.
I wonder if lightning hit a building with argon insulated windows, would they all glow blue?
A small Tesla coil could be more effective
I'm not sure if that would work as glass is pretty terrible at
conducting currents. Perhaps you can ionize the Argon atoms by applying a
(very) strong electric field quickly (and then turning it off so the
electron can recombine - one could just use a strong AC). Or just use
fluorescence or something similar.
Sax4565 this is what a Tesla coil does
dontlikemath -.- I didn't see your comment when I wrote mine, I replied to smoothvirus with that :D
Sax4565 oh ok 👌
Argon is used in creating the plasma for ICP metals analysis.
Thank argon for your smart phone, computer, and virtually all modern electronics. Argon is the purge gas used while growing silicon crystals for wafers for integrated circuits.
Wonderful video! I wish you would have over its use as an insert gas in TIG and MIG welding at all. As far as I'm aware that's Argon's main industrial application.
I work in the windows industry. Although we fill Insulated glass units completely with argon, when we sell this service, we only claim a 90% fill. The problem is that argon's molecular size is so small that some of it leaks out over time, like helium out of a mylar balloon. Each day as the glass heats up from the sun, the pressure inside the I.G. unit raises slightly and encourages more argon to "vacate the premises". Over the course of several years, the unit will "hourglass" slightly during the cooler portion of the day.
Neil's magical experimental fingers are amazing.
Argon gas is also very well used in welding
Noble gases are always fun to play with.
Not just a noble gas but also the shortest prepositional phrase used by pirates: "Aargh on!"
I often see argon gas used in welding. Also, it is used in the food industry to package products such produce and meats to prevent oxidation. If you buy a bag of chips (or crisps if you’re British) the gas inside the bag is either argon or nitrogen to prevent oxidization that would ruin the flavor.
I love how Neil is hitting the hard bottle with a hammer. Aaa, the hilarity insures in labs. My favorite experience was a helper that decided to warrn the valve to loosen a froze regulator nit and the valve stem. Needless to say, he was unemployed in short order
Argon is also used to inflate commercial diver's dry-suits because it is a better insulator than air
The newest generation of neutrino detectors are Liquid Argon Time Projection Chambers. They're really clever devices that let you see the path of different kinds of particles.
Professor, just one thing: 7:32 - "keeping heat in" (or cold air out)
Not a big deal for the practical content, but a lot of difference for us, Physicists hehehe
Thank you for the amazing video again, the best Chemistry channel on yt by far
Love it
Nice Video 👌
Argon is used in TIG welding all the time - it’s especially important for welding stainless steel and titanium.
KRS One is my favorite compound.
How do they get rappers so thin? I agree they are toxic though.
Argon is also used in incandescent light bulbs.
Otherwise all Ur videos are amazing , so very broad thru all topics.🏆
The relatively low thermal conductivity of argon is, in fact, due to two factors. One is its high atomic mass, as stated by the Prof. The other factor is its low heat capacity, owing to it being a mono-atomic species. Thus, it possesses no rotational or vibrational modes, which can "carry" heat.
When I look out the window I'm looking through argon gas, except for a couple windows that are cracked and the gas has leaked out and nasty oxygen has got in there and reacted with the coatings on the inside of the glass so I can't see out of it very well anymore.
I was remembering Argonflourohydride from the flourine video ages ago.
I use argon as a shielding gas for TIG welding. The gas prevents the metals from burning in ambient oxygen when bits of them are heated up to some 5500C in the electric arc. Nitrogen cannot do this job because it too burns at those temperatures. One key challenge in TIG welding is to get the electrode and the workpiece reliably immersed in a moving stream of argon. Doing so is subject to many small problems. Central to the difficulty is that every repair or one-time fabrication job takes place in its own unique geometric puzzle. A skilled welder needs years of experience to develop intuition covering most of the situations she is likely to encounter.
Chemistry is spectral beauty.