Holmium - THE MOST MAGNETIC METAL ON EARTH!

Thanks for the Holmium: onyxmet.com/
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Do not repeat the experiments shown in this video!
Hi everyone! Do you want to get to know what metal may soon be used for making 10 petabyte hard drives and why no MRI brain scanners can be made without it? Now you will get to know all of that. Friends, here is holmium - the most magnetic metal on earth having the highest magnetic moment among all metals and also the highest magnetic permeability at low temperatures. In the periodic table of the chemical elements holmium belongs to the lanthanides series of the periodic table which all have their unique and unusual properties. Holmium’s atomic number is 67. As many other lanthanides, holmium was discovered by a Swedish scientist and as was customary back then was named after a Swedish settlement, after Stockholm whose name in Latin is Holmia. In order to obtain pure holmium, scientists mix monazite - a mineral containing almost all rare-earth metals, with acid removing the dirt and as a result obtaining monazite concentrate - a mix of many rare-earth metals. Later on by filtering and conducting ion exchanges multiple times pure holmium oxide can be extracted which looks like yellowish or pinkish powder depending on your lighting. In LED light holmium compounds appear more yellowish whereas in fluorescent light they appear more pinkish. This effect is achieved due to the fact that holmium as well as all other lanthanides is an f block element and because of its having f electrons on the outer orbital the spectrum of absorbed light has very sharp emission bands caused by so-called “forbidden” f-f transitions within the atoms. One can extract pure metal, which looks like ordinary metal which by the way is not that cheap and 5 grams of which cost 15 dollars on eBay but you may find a better price thought, from holmium oxide by conducting chemical reduction. If you manage to buy it at a low price, it would be great if you could grind it with a grinder wheel to see the beautiful sparks of burning holmium with holmium oxide. Melting point of metallic holmium is about 1500 ℃ that is why it can only be melt in special furnaces and you will be able get such droplets of the hardened metal. Besides, you can mix a piece of holmium with sulfuric acid, the metal will react with the acid and form holmium sulfate of some colour. Why of some colour, you might wonder? Tell me please what colour is this flask now? What about now? That’s the point. By the way, the change of colour pure holmium sulfate undergoes under the influence of fluorescent and LED light is more interesting to observe than that with holmium oxide. Holmium compound are used for dying glass ore synthetic gemstones such as cubic zirconia, zirconium dioxide. Besides holmium oxide in perchloric acid solution is used for calibrating optical spectrometers thanks to its clear light waves absorption edges. Also along with chromium and thulium it’s part of yttrium-aluminum garnet which is used as medical lasers stimulated emission with the help of which prostate surgeries can be performed. Nevertheless the video isn’t over. Now we will speak about quantum physics, magnetic moments and extra-low temperatures. The thing is that at room temperatures holmium’s magnetic properties are not of much interest because it gets only slightly pulled towards a powerful neodymium magnet and even less than some other lanthanides. Nevertheless, if holmium is frozen to the temperature of less than 30 Kelvin degrees, it becomes more magnetic than any other metal on earth. That is the very reason why holmium was used in conducting recent experiments during which information was transferred onto separate atoms of holmium. Scientists managed to transfer 1 bit of information onto a single atom of holmium at the temperature of 1,2 Kelvin degrees. To put it simply a single atom of holmium maintained the received magnetic moment for long enough for the information to be read. It means that we can make 10 000 times more spacious hard drives that the ones we have today. To my mind the only disadvantage is that we will have to store such hard drives at extremely low temperatures but perhaps scientists will solve this problem too. However holmium’s magnetic properties are used even now. For instance it is used in MRI scanners which have special coolable pole components made from holmium that direct and concentrate magnetic field thus boosting it. I hope my understanding is right and if there are advanced physicists among you, please feel free to correct me. Thus although holmium is rather ordinary from a chemical point of view, it’s quiet unique from the physics point of view and has lots of incredible uses that will enable us to make several petabyte or thousands of terabytes capacity hard drives.

[@tommunyon2874]

When I majored in chemistry 40 years ago I took Chemical Periodicity as a filler course to round out my hours for a B.S. degree. It would have been a much more exciting course had we been allowed to experiment with more of the elements. The lab fee would probably been prohibitive, however. These videos are a great way to vicariously get those experiences.

[@Osama-Bon-Jovi-01]

Given students are paying over 9 grand a year for the privilege I'm sure they can find the funds somewhere

[@elainemarie9470]

Nice. Most attractive element is named "Ho"

[@bluewaffles3760]

Elaine Marie Tom Holland

[@AaronSchwarz42]

Its Santa's favorite element too / he loves those ho's

[@RaExpIn]

You really mention almost all of the properties of the elements. That's why I really like these videos! :)

[@pricklydingus8604]

I've actually come to like chemistry thanks to you. Its really disappointing that my time in high school made me hate chemistry. I believe they just tried to teach me the wrong way, to be honest.

[@laharl2k]

you have to keep in mind that you are not taught stuff in school for you to learn, you are taught only because that's what you need to work as that. School doesnt make you a favour, it makes you useful to someone else. Ask any selftaught person, he'll tell you, if you want a cake, you'll have to bake it yourself. (or you can always buy plastic tasting shit at the market) If you really want to learn chemistry, use school only as a referrence, and work to build your own lab (and if you can make money with it, it will be easier to grow and mantain)

[@aroneaton2639]

I can relate to that. I think the way chemistry is usually taught (endless memorization that you're almost certain to immediately forget) makes it seem extremely tedious. However, as this channel demonstrates, chemistry is actually quite interesting and amazing.

[@saoudkhadada3452]

Eric Brown same feeling 😢😢I wish if I can return high school again ..

[@googleuser859]

Laharl Krichevskoy or she...

[@elainemarie9470]

Eric Brown A shame, really. Chemistry is both fascinating and practical. When I became employed as a Chemistry Tech in 1974, females were discouraged from the profession. So 1800s. I was the second generation woman in my family to be a Chemist. My father routinely brushed off my Mom at dinner when she talked about her work day. I was enthralled, and is what drew me to her field. My Dad was an inventor for a famous Silicon Valley tech company, and they tried to recruit me. After dropping out of Stanford University studying engineering, I was ready to be on my own and working as an Environmental Chemist. The first Earth Day held April 1970 inspired me to ecological sustainability methods, and was a better fit.

[@Skhillz_FN]

4:45 if you observed closely you notice ion trails from sub atomic particles passing the gas discharge directly above the freezing sample you can even make out one or two V shapes

[@Shadobanned4life]

I really appreciate your videos,they are very informative yet short enough to keep the viewer's attention. Thank You!

[@binaryalgorithm]

This is the best way to discover obscure elements you never learned in chemistry! I appreciate the efforts.

[@Curunen]

Agreed. Your video series is fantastic - and an excellent reference guide to more obscure elements or even uncommon features of more well known elements. Edit - I should say as a teaching resource (referring to the comment below), because as a secondary school science teacher it's useful to know some of the less known facts to share with students.

[@s.d.s.7007]

Great channel! Always informative and relevant, while avoiding the boring didacticism of lectures. You remind me of why I loved chemistry as a child, and studied from library books on my own. School made it tedious and boring, as others have said, but you make it fun again!

[@travislee6032]

Cant get enough of these videos since finding them,,, the study of magnets is awesome.

[@itaco8066]

Love your videos. Thank you very much !

[@hughmcrae4109]

Thanks mate! You have helped me find the metal I want to use for my design of a GENERATOR in space!

[@dedrickhowell805]

I started collecting elements because of your Videos. I really appreciate your effort. Thanks

[@yankumarrah]

Lol, Ho magnet 🤣

[@Mkly_]

Yanku Marrah 😂

[@medexamtoolsdotcom]

For the full effect, you need an alloy of tungsten, holmium, and rhenium.

[@godfreypoon5148]

What if you alloyed Holmium and Molybdenum?

[@TheM4Dr1Zz]

LMAO

[@Skhillz_FN]

@@medexamtoolsdotcom I got it it says Thot

[@michaelmellon45]

As always, great and educational video.

[@medexamtoolsdotcom]

3:57 "If holmium is frozen to the temperature of less than 30 kelvin, it becomes more magnetic than any other metal on earth." - video shows holmium being cooled in liquid nitrogen, at a temperature of I believe 77 kelvins.

[@Khwartz]

Wow! Very Interesting, Clear and Amazingly Complete Video on an Unusual Material! :D Thanks and Very Well Done :)

[@stieludv]

Love your videos!! 😀

[@NikhilKumar-ot3vi]

Thank you sir for another educating video. Love you method

[@alessandro.calzavara]

"The video isn't over" sounds like a menace haha

[@RedcoatsReturn]

Thankyou! You are educating the World, and me too!

[@solapowsj25]

Great content 😄🤗 thank you🌹

[@davidblalock9945]

I wonder how strong an electric motor would be if it was made with Holmium magnets and superconductor coils?

[@pappapappi9177]

As you have to keep it near zero absolute it may lower its efficiency..

[@montneymon-ta-knee6810]

the exact thing i was thinking

[@pasticcinideliziosi1259]

same

[@pasticcinideliziosi1259]

if you can get it cold enough the only problem would be to change the electromagnetic field of the stator quick enough

[@westcoaststacker569]

@@pappapappi9177 Sounds useful for satellites and space ships when far enough or shaded from the sun.

[@storylava9603]

THIS IS THE BEST KZbin CHANNEL EVER!!!

[@luvhungryman]

Fascinating videos my good sir,, When at school I enjoyed chemistry, physics, but the way they taught was so utterly boring, I could not hold my concentration, and instead made paper planes, and other such things to while away the tim. Now though, with the internet, and videos such as yours, I enjoy delving into these subject with ravenous delight. So thank you so very much for these videos, interesting, incredible, and for showing how things around us are absolutely amazing when you look into them. Also, love your accent)) TC

[@MaxPower-yg1uf]

I watched 15 of them... i cant stop lol

[@NotAnnaJones]

Thank you for the video!

[@borgozelata1754]

Nice video, if I only could understand one word. Contents are not really easy to understand, and chemistry is not an easy argument to handle, but if you also add a an extremely hard understanding it makes chemistry even harder.

[@erictaylor5462]

I hate to admit it, but your videos are better than Periodic Videos, and they have very good videos. Keep up the good work.

[@kartik-agarwal]

Odd voice. Not clear.

[@V0YAG3R]

Eric Taylor Yes, more informative than at least 50% of Periodic Videos, many of their first videos on Elements lasted even less than a minute, literally. Pathetic, cringeworthy. At some point it just became more of an entertainment channel than one providing raw educational, information like this one. Tho the accent of this guy hinders the ability to understand him clearly and even feels or sounds almost as if he's faking it, kinda like Borat or that American KZbinr who shoots guns and stuff, faking a Russian accent. But besides that it is a great channel, indeed, I don't see much if any clickbait here, starting with the screenshots, which many scumbag youtubers photoshop for views, not this guy 👍🏻

[@markanthonystringfellow3923]

Exellent Video Format!!!

[@simonmasters3295]

Great work dude

[@williamleslie4939]

Excellent video!

[@michaelzumpano7318]

I love your videos too! Maybe I’m an outlier, but I’d love to see more quantum physics calculations and physical chemistry characteristics. You could put it in the description instead of the video so viewers don’t leave skid marks.

[@createvideo561]

I just loves this channel

[@seigasuki]

Love your videos, from the begining to end!! 😸 Kisses, from México!! 🇲🇽

[@louisfriend9968]

Many thanks for an entertaining look at the metal Holmium. I am also a collector of pure elements, and in the case of the lanthanides I have acquired amounts ranging from 500g to 1kg, but at a cost much less than what you cite. It is my intention to create a really nice display using old style apothecary bottles, storing the more reactive lanthanides under argon in these bottles. I also have a complete set of the s-block, p-block and d-block elements, each element encapsulated as display block measuring 100 mm x 100mm x 40 mm in a non-acrylic and non-styrene based substrate. If you would like to see some photos of my adventures with the chemical elements please send me an email.

[@peterdefrankrijker]

You make great videos! I love your accent, like the secret Moscow contact in a 60’s spy movie. :-)

[@konnichiwa7925]

As always. AMAZING

[@nillchen]

Love it, also the cute holmium cat :D

[@m6tt]

great video!

[@kushagrabansal2207]

Great work bro

[@MrMilarepa108]

KZbin's algorithms are just crazy good now. I got redirected here from Applied Science's new video about making filters from silicon wafers.

[@louisfriend9968]

Nice element. I bought a kilo of it along with a kilo of dysprosium about two weeks ago. I am in the process of making a lanthanide periodic table made out of real lanthanides - and in no less than 1/2 kg amounts per element. Photos on request!

[@jozefnovak7750]

Super! Thank you very much!

[@snyderkr0822]

What kind of lights are you using for the color-changing footage?

[@tonyeletron]

Please , this metal is ferromagnetic metal ? or paramagnetic metal in normal temperature ? Fe, Co, Ni are ferromagnetic but what about Gd ? it is ferromagnetic just in low temperature ,in normal conditions is paramagnetic . I would like to know please in normal conditions, Ho is ferromagnetic metal or paramagnetic metal ?

[@shauljonah6955]

Thanks for sharing. Its been a long time since I saw a periodic table.

[@johnmyviews3761]

Amazing how our lives depends on a range of newly discovered rare materials

[@smrekow]

practical use of elements, good job,in school only learn about numbers and gibberish you should be the chemist minister of teaching

[@patrickmcleod111]

Will samarium oxide change colors under different types of light as well? I bought a samarium sample about 12 years ago. Unlike my other rare earths and other easily oxidized elements, the samarium sample was sent inside a clear plastic container with no mineral oil. I assumed it was stable stored just like that. But within a year or so, I took it out of the box it was in, and noticed it had degraded into a 50/50% metal/powder mixture. It was then I discovered that it readily oxidizes in air! But since the sample wasn't all that shiny to begin with, I decided to let it continue to oxidize. Now it's roughly 90% powder and 10% metal.

[@luther7541]

i like the changing of colors

[@williamdwyer5439]

Fascinating, to say the least.

[@ThePaladin5084]

These vids help me sleep

[@dogphlap6749]

+Thoisoi2 - Chemical Experiments! For those having difficulty understanding the accent (it sounded clear enough to me) the description has the whole script which I found well worth a read after watching the video. Somehow seeing the words in print brought out aspects that I had missed when listening to the video. Thank you for an entertaining and informative video about an element I had only ever heard of in connection with lasers.

[@robertgsmith5761]

Fascinating !

[@PaulK390S90V]

Will the cubic zirconia turn yellow in different light also? Or did they make the pink stay pink somehow no matter what?

[@rommelfcc]

Can you plwase place Holmium in a strong magnitic feild while is melted, and see how is effects it while it solidifies and cools...

[@chandlerlau9465]

you deserve a lot more subs

[@sunilbhola7508]

I on a project, i required a metal/chemically treated metal/Chemical/anything which repels iron and steel like two same side magents do. I searched in the internet and didn't found anything which repels iron and steel. -what are the metals which repels iron and Steel.? -What are the chemicals or any treatment to metals which makes metal to repel iron and steel.?

[@nicktohzyu]

love your content but the pronounciation is quite hard to understand, would love if you upload the captions too

[@Thoisoi2]

Hello, can you please help me with adding subtitles? There is a full script in the video description.

[@jwj410]

just want to say I love the accent mate!

[@tomkocur]

Just added it. You can do it by clicking the three dots below the video, add translations and then just add the text, youtube will do the timing automatically.

[@xi-Jinping-1st]

Borat

[@ArjunSharma-gy1eq]

They are already there

[@SuperMario1005]

That Half-Life 2 siren sound in that intro warning xD

[@mysock351C]

Interesting that the color change shows how much more UV there is in fluorescent lights vs. LED lights. The GaN LED chips are buried in phosphors, and as such don't emit much blue or UV.

[@wilhelmmeyer7970]

Good to know. Thanks.

[@markburd9253]

great vid! love your accent

[@govindrao5249]

Hi sir any metal is on non atract to iron metal , when the iron come metal area throw the iron . Is there any metal pls any body know about this metal

[@brianbrewster6532]

Fascinating.

[@Jamesvandaele]

I love it, as soon as I saw it I was thinking it could be the cubic zirconium coloring agent for their color change cz.

[@arifkhateeb5799]

Dear Sir Amazing...

[@Mars20231]

LOVE your accent!!! No really I do. I have no idea why I am so good at understanding accents being a young rural American. Also are you a fan of the half life and portal series? Based on the sounds and song from your intros i believe you are.

[@sergiotorloni5166]

Holmium lasers are used in prostate surgery because the green light does not damage or cut nerves. Therefore the patient can still have erections post prostatectomy . It cuts and cauterizes vessels, Prostatic tumor and connective tissue but not nerves. Sergio T. MD, MS.

[@dirtperson5234]

please do compound review as well,not only metal. i would love to see that.

[@skiporbit]

What is the name of the song in the end bumper music

[@MisterDenisTT]

I love your pronuntiation and love u to speak in english being russian. Keep doing nice stuff 😉

[@beefchillingham6790]

Would that holmium sulfate work as a decent catalyst is batteries?

[@schwubbel9289]

Do you have all of the aviable elements in the lab?

[@kevinbill9574]

This is my new favourite metal

[@thatfeeble-mindedboy]

What is the music at the very end? I like it …

[@maeveallen5978]

Love your work though boi

[@experimentalkhopdi7550]

AMAZING VIDEO i HAVE A REQUEST CAN YOU MAKE A VIDEO ON EINSTEINUM

[@thomasholmes8063]

Thank you Borat for the info.

[@learningcurve1395]

The content and information are very valuable but I think the speaker was either drunk or woke up in the middle of the night

[@indigodragon7129]

Does this metal disolve into gallium like aluminum does? If so magnetic gallium alloy speed through a thick copper pipe could generate electricity ?

[@Dowlphin]

1:17 - Fluttershy, the most magnetic pony ^^

[@jonvanbrunning4294]

HDDs spinning at 10k RPM with 12 read heads are already at their limit in reading from the platters. It takes 2 days to read everything from a 20TB HDD

[@Sid-ix5qr]

3:40 giving it some thought.

[@mdkooter]

He had me at Gemstones.

[@HUMAYUNKK2002]

which metal is colder ?

[@tushargopaul9733]

awesome!

[@slick4401]

is that metal at 4:43 radioactive? It look like ionized particle trails coming out of it, those tiny strings of bubbles. Can anyone confirm?

[@stu7604]

I sat through 12 credit hours of chemistry in college, and I swear I have never heard of Holmium! I think I was awake. I got A's.

[@GreatDaneLoverz]

I do not believe that I have ever commented on your videos yet... So I just wanted to say that I really enjoy your videos and would like to thank you for producing and posting these very inyeresting and educational videos... :) I like how you cover not just the elements, but also their uses in every day devices... :) Also, I love your accent! Ironically, it helps your voice stand out and because of that, I get more out of watching your videos then others because I am really paying attention...

[@merikmalhads1676]

Holy shitake mushrooms, having a potential bit count at the atomic level means the level of complexity in standard model computers possible is soooooo much more than I initially thought. That being said, you will still need to space them out ~15nm as that's where quantum tunneling becomes probable enough to make problems for data storage.

[@GewelReal]

I know all the elements Yet I never, ever heard of this one. Even looked at an old table I had from like 1998. It's there.

[@boogerking7411]

which have more magnetic strength, holmium or neodymium magnet!

[@bastienpabiot3678]

booger king it depends on the temperature

[@sanjaysrivatsan8820]

3:59 it's just 30 Kelvin

[@hasanhas00n1]

Only 30 degrees above absolute zero not bad

[@mb-3faze]

Your cat definitely deserves a thumbs-up :)

[@hal6yon]

You, sir, are a real Ho magnet. Thumbnail reference Geddit? I'll see myself out.

[@locouk]

Electric2Shock Err, I guess it must be an America thing?

[@notme7285]

In next clip can you prezent us adamantium ? Or...graphene ! :)

[@justanormalfreak6855]

Could you do Molybdenum?

[@LunoRawke]

Do a video about selenium

[@alterbart7916]

"Surgery" произносится как "Сёджери"