When i remembered right part on the chemical university burned to flames years ago. That was on time by the first periodic elements videos. Then since Neil never talks. Its strange.
"This metal is very expensive, so we're going to spend a significant part of our very small samples to teach the public about chemistry" This is very generous.
I saw that too. According to google (!) lutetium costs $10,000 per KG. So realistically, that was maybe $30 or $40 that went flying. Don't get me wrong, I wouldn't want to lose $40, but it's not like they dropped $5000 worth of metal. Edit: So the density is 9.85 grams per CC. That sliver looked to be about a centimeter long, and pretty thin. We'll say a millimeter just to keep it simple. So that's .01 CC. So .1 Gram of Lutetium. .0001 x 10000 = 1. So more like $1 went flying.
@@nasonguy Really did your research 👏🏾 I forget that people advanced in years sometimes consider things more expensive than we would these days. To him that little sample was probably a big investment lol
@@nasonguy one seller (that i trust somewhat) sells a gram of supposedly 99,95% purity for about 10€. Sigma-Aldrich however, which is a supplier for analytical chemicals for many universities, sells a gram for about 600€ (lump) to 900€ (fine powder). I guess they took the Sigma-Aldrich prices as a general guide.
I love these new videos on elements, especially the lesser known ones. They always turn out to have unique and interesting properties after all. Keep 'em coming!
Easily the earliest I've ever been to a periodic video. It feels like an honor. In celebration I think I'll just binge the whole channel from the beginning again... been a few years since my last.
What a cool coincidence! I am at this moment sitting isolated at the University Hospital in Uppsala Sweden. And I have been given a treatment with Lu177 wich is attached to a peptide (Tyr3 Octreotate) to form a compound to treat Neuroendocrine tumours. It has been used successfully in this application for many years. Neuroendocrine tumours are not very common so it is likely that it is not very well known as functioning application for Lutetium. Thank you for cool and interesting video as always! 😊
Best of luck with your treatment. Results so far with Lutetium theranostics products are very promising! I just made Lu-177 PSMA this morning at work, and we have some other Lu products coming on line as part of clinical trials. The Lu-PSMA is quite a sticky compound, so you have to be careful with handling (or risk having beta-emitting contamination all over the place). Interestingly, there are two commercially available types of Lu-177. Carrier Added (Contains Lu177m), and Non Carrier Added (just contains Lu177). The Lu177m has a half life of around 160 days, and so poses a bit more of an issue for waste disposal. We are currently using the carrier added product made by IDB in the Netherlands. We are looking to switch to the ANSTO (Australia) carrier-free product, as the waste handling is just that much nicer.
I used to work at that very ward in Uppsala. Indeed interesting and rare treatment, we had quite a few foreign patients receive it as well. We usually gave 4 treatments at around 2 month intervals. It is not a cure, but some patients respond very well and remain progression-free for years, and some can be re-treated by then. Bone marrow toxicity is the main limiting factor. Before therapy, a scan (often PET using 68Ga) is done to ensure that the tumors overexpress somatostatin receptors. This type of targeted therapy, using a radionuclide and a tumor-homing ligand (here, a somatostatin analogue) is called peptide receptor radionuclide therapy (PRRT).
@@touta2647 Nice to hear from you! Yes I recognize everything you write. I have met patients from Ireland and Norway on my visits. For me, it has slowed down, or put a lid to the progression so to speak. Although I am back for a second round, it at least reduces the symptoms considerably. I am lucky to have a large uptake of 68ga so I can receive further treatments. Tack för att du svarade! Ha det fint!
I wish you were my teacher when I was in school. I've learned so much from this channel alone. I work in refractory. I work with Chromium, Borax, Muradic Acid, Carbon, and mainly Graphite. It has given me a love for physics and chemistry.
Lu-177 is used to treat a couple different types of cancer. The first image you show is for Lu-177 DOTATATE which is used to treat neuroendocrine tumors (commonly found in the pancreas or small intestine; what Steve Jobs had). Lu-177 PSMA is the agent used to treat prostate cancer. I believe, though I might be misremembering, that Lutetium is also used to dope scintillators used to detect gamma rays (like in PET scanners)
Magenta and fuschia arguably the same thing idk. Magenta was just a renaming of fuschia after some lord but i guess it now means specific computer primary colour or printer ink now.
I came here today because I read an article in the New York Times about a high-temperature superconductor developed using lutetium. If that goes anywhere this element may not remain relatively obscure for much longer.
You missed a big use of lutetium! I do some work involving lutetium in the form of LYSO (lutetium-yttrium oxyorthosilicate), which is a scintillator. For those unaware, a scintillator is a material that converts single high energy radiation particles to low energy bursts of photons (usually in the visible range). These bursts can be measured and analyzed to detect and measure radiation. As a scintillator, LYSO is very fast in terms of decay time (the speed of the "burst"), so it's used in PET and other high speed stuff where timing is critical. It's also incredibly dense (about on par with steel), so it can trap fairly high energies. Also, many scintillators can't deal with water vapor, or oxygen, or they're toxic, or carcinogenic, or have some other fundamental problem - but LYSO is basically inert, except for some very minimal background radiation. It also has relatively high light output, making it easier to read out and yielding a better signal to noise ratio than other options. Of course, LYSO has the same problem you had in this video... EXTREMELY high cost. If someone is using LYSO, you know there's a darn good reason, because that stuff does NOT come cheap. Not only is does it contain lutetium, it needs to be carefully grown into a perfectly clear crystal, which is... tricky, to say the least. It's not something you want to drop while walking across the shop floor.
Lutetium actually has a major use in industry that was not talked about much that shocked me. Lutetium is a component of the LSO scintillator crystal, which is used for radiation detectors. It’s primary use is in PET and SPECT cameras, but is also used in X-ray astronomy. Anyways, I was surprised that the radiotherapy application was mentioned but not the use in PET cameras.
I believe LYSO crystals are radioactive themselves due to the presence of the long lived radioisotope ¹⁷⁶Lu which makes up 2.6% of all natural lutetium as pointed out in this video.
Somewhat unbelievably, this exact question of where lutetium (or rather lanthanum) appears on the periodic table just came up in my life yesterday, the same day this video was uploaded. I also find the argument somewhat academic, but in this case it was really about which arrangement of the periodic table to buy. So it could never be more relevant!
Personally I think this is one of the best videos on this channel. Niel performed beautiful experiments with the lutetium. It was a pleasure to watch. I really learned something new and exciting!
Truly fascinating thanking I must confess that even with my degree in Chemistry I hadn't heard of Lutetium, I was a bit of an organic specialist. Keep safe and well during these very difficult days.
Just found your channel not too long ago and watched a ton of your videos. Some of them several years old. Wish I could have had a science teacher like you when I was in high school. I might have had a completely different career path. Glad to see you're doing well and still making new content. Happy holidays sir, stay safe!!!
Carl Auer von Welsbach actually had some intersting inventions and even was founder of the brand Osram (which produce lights). Actually, it would be neat to see a series on the lives and inventions of 19th-20th century chemists.
I love yalls videos. Cause you give tips and ins and outs of science. the bit "If you heat nitrates they'll give off nitrogen dioxide" is a super useful tip :D
@@SonofTheMorningStar666 No, if it were solely about chemistry the history of this elements discovery would not have been covered. It is about the history of chemistry, where they have made a mistake that I pointed out, or do you have a problem with that?
It is a great nonmagnetic substitute for Yb. I am finishing out my PhD work in a lab that specializes in growing single crystals of lanthanide compounds. If you have a single crystal of YbFe5P3, and a single crystal of LuFe5P3( assuming both exist and have the same crystal structure) you can measure the heat capacity and/or the electrical resistivity of both and subtract the latter compound from the former compound. I am sure the professor can talk how the f-shell of Yb is one electron short (depending on oxidation state), while the f-shell of Lu usually has all 14 f-electrons. The hard part is actually growing the single crystals in molten In, Sn, Pb, Ga, Bi, Zn, etc at ~1000 C.
Hehe. I'm from Perth West Australia. The paper on meteorites was from WAIT (Western Australia Institute of Technology)which is now called Curtin University. It was going to be renamed WAIT & C (Western Australia Institute of Technology & Computing). Lots of Hafnium in Western Australia. I didn't know it came from outer space... Then again, everything did. Love your videos guys. I've learned so much.
I learned in school that THREE people discovered it at almost the same time, the two named and an American chemist named Charles James. I also thought Welsbach was an Austrian. Not that these at all effect my enjoyment of the video. It's just rare that I can add something but details of this one stuck in my memory because it's number 71.
@MichaelKingsfordGray Plenty of people know my name, it's just a privilege. One that evidently is not worthy of you, sir. Why are you getting combative to a stranger just expressing a suggestion on an educational video?
@@danielkron2513 yeah I understand that, but I was at the time literally just (as in closed chrome and opened UA-cam) and boom top of the new sub videos was this. Perfect timing.
The red (magenta, rather) flame colour was already visible when heating the Lutetiumnitrate in the test tube (3:34). The glass was probably contaminated at the outside.
Dissolving the decomposed nitrate should form the chloride, when reacted with hydrochloric acid, which could have been used to get a strong flame color.
Auer von Welsbach was an Austrian, born in my town Vienna, and beside this element heavily involved with the discovery of Neodym, Praseodym and Ytterbium... as I just learned
I like your videos, which often give me inspiration for my work. But I have just a little remark: Carl Auer von Welsbach was not a German, but an Austrian chemist... and yes... There is a difference...
I rewatched the video about the undolliods (that is most probably spelled wrong) and wondered if you could use the resulting spheres as a catalyst because of their high surface area and convenient size. What does everybody think about this?
Didn't the symbol for copernicium get chosen to be Cn to avoid confusion with the cyclopentadienyl ligand (commonly noted as Cp) in organometallic ccomplexes?
Although Copernicium probably decidedly lives in the realm of inorganic chem, I agree that still makes a whole lot more sense than people confusing it with a name that was never actually used by anyone but some old timey Austrian.
0:09 oh... is that tge argument? it is a member of group 3, class dismissed. the periodic table is contracted, but if you stretch it back, Lutecium and laurencium automatically pop back to their places.
Thank you for that description and illustrations. It makes me curious regarding the where in the light spectrum that red emission is and what the chemical dynamics were in that flame.
Most likely just the combination of orange imparted by the sodium in the glass (soda glass) and some deep red heat glow (blackbody radiation). There could also have been some of the salt on the outside of the glass.
Lu-177 is not just for prostate cancer, but many neuroendocrine tumors. For example, the drug Lutathera has had many successes in treating aggressive pancreatic cancers.
"My personal feeling is that...🥁 This is not a terribly important point" Please be the president of the planet!! I love when non important debates are totally ignored.
I have been looking for the paper version of that exact table of the elements shown in the beginning. I used it in high school and have always wanted to get another. Any ideas who makes it?
When you heat the test tube at 3:33 -I'd expect sodium yellow, but the flame around the glass appears deep red. Where do you suppose this is coming from? Is this a camera artifact, or was it actually red? It appears the same color as the element being burned.
That's the actual reason they had to have the symbol for Copernicium as Cn. I'm not sure if this was mentioned in any of the videos though...might have to look for it.
Every single video: "I persuaded Neil..."
Yes! I wonder why
To be fair, when there's fire or explosions involved I suspect Neil doesn't require all that much persuasion :D
Its that damn white/grey curly hair, irresistible to Neil
Just don't tell him how highly toxic it is.
Must be blackmailing
Element: exists.
Professor Poliakoff: I persuaded Neill...
"Now you wouldn't think you could get a gram of Francium, but I persuaded Neil..."
"So anyway, I started persuading..."
@@garethdean6382 "And then we made some Francium Astatide - FrAt"
i have to admit i want to know his tactic for this
@@abigaildavenport8195 what would be neills payment? What materials does he eat? Etc.
I have a sneaking feeling that Neil doesn't take too much persuasion.
We don’t know what methods are necessary for persuading Neil, perhaps he likes treats, maybe it’s all reverse psychology, it’s an ongoing experiment.
You need a Neil-detector made of Plutonium Oganesside
Or the professor has proficiency in Persuasion
depends on who pays for the metal.
Tbf it does seem that the thing slowing down uploads is neil deciding if he wants to or not
Persuading Neil: Hey Neil, would you like to set something on fire?
Neil:
When i remembered right part on the chemical university burned to flames years ago. That was on time by the first periodic elements videos. Then since Neil never talks. Its strange.
@@stuehleruecker HMMM lol... but naw, that's just his stage persona. He gets chatty in the outtakes ;)
@@ThePlacehole until it's a chunk of an alkali metal!
Neil: [barely audible] Nice
[Potassium explodes in a pond]
Neil: [barely audible] Whoa
"This metal is very expensive, so we're going to spend a significant part of our very small samples to teach the public about chemistry"
This is very generous.
This channel, and specifically this series is criminally underrated.
1.5 million subscribers is hardly small.
Hey shaco
This channel has almost 250 million total views. Don't know you can call that underrated
He got knighted for this channel lol
@@koolaidman324 That's amazing lol
"For some reason Litetium is extremely expensive" *piece flies across the room*
I saw that too. According to google (!) lutetium costs $10,000 per KG. So realistically, that was maybe $30 or $40 that went flying.
Don't get me wrong, I wouldn't want to lose $40, but it's not like they dropped $5000 worth of metal.
Edit: So the density is 9.85 grams per CC. That sliver looked to be about a centimeter long, and pretty thin. We'll say a millimeter just to keep it simple. So that's .01 CC. So .1 Gram of Lutetium. .0001 x 10000 = 1.
So more like $1 went flying.
@@nasonguy Really did your research 👏🏾 I forget that people advanced in years sometimes consider things more expensive than we would these days. To him that little sample was probably a big investment lol
@@nasonguy one seller (that i trust somewhat) sells a gram of supposedly 99,95% purity for about 10€.
Sigma-Aldrich however, which is a supplier for analytical chemicals for many universities, sells a gram for about 600€ (lump) to 900€ (fine powder).
I guess they took the Sigma-Aldrich prices as a general guide.
@@darnoc4470 Totally editing to completely rewrite my comment, haha.
10 euros a gram isn't too far off 10,000 USD per KG.
@@nasonguy Sorry, i didnt mean to correct you ;)
I commented to explain why the prof said Lu was very expensive
I love these new videos on elements, especially the lesser known ones. They always turn out to have unique and interesting properties after all. Keep 'em coming!
i doubt having a red colour from flame test and forming nitrides and oxides is an "interesting property"
Neil is such a pushover for marginally-controlled rapid oxidation reactions!
Easily the earliest I've ever been to a periodic video. It feels like an honor.
In celebration I think I'll just binge the whole channel from the beginning again... been a few years since my last.
Sounds like a good plan!
What a cool coincidence! I am at this moment sitting isolated at the University Hospital in Uppsala Sweden. And I have been given a treatment with Lu177 wich is attached to a peptide (Tyr3 Octreotate) to form a compound to treat Neuroendocrine tumours. It has been used successfully in this application for many years. Neuroendocrine tumours are not very common so it is likely that it is not very well known as functioning application for Lutetium. Thank you for cool and interesting video as always! 😊
Best of luck with your treatment. Results so far with Lutetium theranostics products are very promising! I just made Lu-177 PSMA this morning at work, and we have some other Lu products coming on line as part of clinical trials. The Lu-PSMA is quite a sticky compound, so you have to be careful with handling (or risk having beta-emitting contamination all over the place). Interestingly, there are two commercially available types of Lu-177. Carrier Added (Contains Lu177m), and Non Carrier Added (just contains Lu177). The Lu177m has a half life of around 160 days, and so poses a bit more of an issue for waste disposal. We are currently using the carrier added product made by IDB in the Netherlands. We are looking to switch to the ANSTO (Australia) carrier-free product, as the waste handling is just that much nicer.
I used to work at that very ward in Uppsala. Indeed interesting and rare treatment, we had quite a few foreign patients receive it as well. We usually gave 4 treatments at around 2 month intervals. It is not a cure, but some patients respond very well and remain progression-free for years, and some can be re-treated by then. Bone marrow toxicity is the main limiting factor. Before therapy, a scan (often PET using 68Ga) is done to ensure that the tumors overexpress somatostatin receptors. This type of targeted therapy, using a radionuclide and a tumor-homing ligand (here, a somatostatin analogue) is called peptide receptor radionuclide therapy (PRRT).
@@touta2647 Nice to hear from you! Yes I recognize everything you write. I have met patients from Ireland and Norway on my visits. For me, it has slowed down, or put a lid to the progression so to speak. Although I am back for a second round, it at least reduces the symptoms considerably. I am lucky to have a large uptake of 68ga so I can receive further treatments. Tack för att du svarade! Ha det fint!
Professor Poliakoff: "It was very boring, two colourless solutions mixing".
Me, a biochemist: :(
As a biochemist student, i loled
Oh no! My saccharides are polymerizing!
I wish you were my teacher when I was in school. I've learned so much from this channel alone. I work in refractory. I work with Chromium, Borax, Muradic Acid, Carbon, and mainly Graphite. It has given me a love for physics and chemistry.
Lu-177 is used to treat a couple different types of cancer. The first image you show is for Lu-177 DOTATATE which is used to treat neuroendocrine tumors (commonly found in the pancreas or small intestine; what Steve Jobs had). Lu-177 PSMA is the agent used to treat prostate cancer. I believe, though I might be misremembering, that Lutetium is also used to dope scintillators used to detect gamma rays (like in PET scanners)
Every video from this channel, is a delightful experience of nowledge. Professor martin is a chemistry rock star!
Always highly informative. The color looks almost like fuchsia or magneta.
With a fuchsia so bright, you gotta wear shades?
Magenta and fuschia arguably the same thing idk. Magenta was just a renaming of fuschia after some lord but i guess it now means specific computer primary colour or printer ink now.
@@jorgepeterbarton i always thought magenta was more purple and fuschia was more pink but now i have no clue
@@AleK0451 it all looks the same to me.
deuteranopia.
You are so lovely to listen to you. Not talking down to us and putting the joy of learning in our grasp
Met Poliakoff and Neil at Liysf 2019... I've been watching the channel ever since!
I came here today because I read an article in the New York Times about a high-temperature superconductor developed using lutetium. If that goes anywhere this element may not remain relatively obscure for much longer.
You missed a big use of lutetium! I do some work involving lutetium in the form of LYSO (lutetium-yttrium oxyorthosilicate), which is a scintillator. For those unaware, a scintillator is a material that converts single high energy radiation particles to low energy bursts of photons (usually in the visible range). These bursts can be measured and analyzed to detect and measure radiation.
As a scintillator, LYSO is very fast in terms of decay time (the speed of the "burst"), so it's used in PET and other high speed stuff where timing is critical. It's also incredibly dense (about on par with steel), so it can trap fairly high energies. Also, many scintillators can't deal with water vapor, or oxygen, or they're toxic, or carcinogenic, or have some other fundamental problem - but LYSO is basically inert, except for some very minimal background radiation. It also has relatively high light output, making it easier to read out and yielding a better signal to noise ratio than other options.
Of course, LYSO has the same problem you had in this video... EXTREMELY high cost. If someone is using LYSO, you know there's a darn good reason, because that stuff does NOT come cheap. Not only is does it contain lutetium, it needs to be carefully grown into a perfectly clear crystal, which is... tricky, to say the least. It's not something you want to drop while walking across the shop floor.
Dropping it on a shop floor is why I have a teeny, tiny fragment of LYSO in my crystal collection. Fortunately, it was not me that broke the crystal.
6:00 Abundance is misspelled twice.
Lutetium actually has a major use in industry that was not talked about much that shocked me.
Lutetium is a component of the LSO scintillator crystal, which is used for radiation detectors. It’s primary use is in PET and SPECT cameras, but is also used in X-ray astronomy.
Anyways, I was surprised that the radiotherapy application was mentioned but not the use in PET cameras.
I believe LYSO crystals are radioactive themselves due to the presence of the long lived radioisotope ¹⁷⁶Lu which makes up 2.6% of all natural lutetium as pointed out in this video.
Lutetium is also an extremely promising candidate for optical atomic clocks, having many advantages over the current Al and Yb clocks
I own an Aluminium clock. It's not very pretty.
@@PopeLando Haha fair enough!
Somewhat unbelievably, this exact question of where lutetium (or rather lanthanum) appears on the periodic table just came up in my life yesterday, the same day this video was uploaded. I also find the argument somewhat academic, but in this case it was really about which arrangement of the periodic table to buy. So it could never be more relevant!
Personally I think this is one of the best videos on this channel. Niel performed beautiful experiments with the lutetium. It was a pleasure to watch. I really learned something new and exciting!
Truly fascinating thanking I must confess that even with my degree in Chemistry I hadn't heard of Lutetium, I was a bit of an organic specialist. Keep safe and well during these very difficult days.
Just found your channel not too long ago and watched a ton of your videos. Some of them several years old. Wish I could have had a science teacher like you when I was in high school. I might have had a completely different career path. Glad to see you're doing well and still making new content. Happy holidays sir, stay safe!!!
Lutetium is also used in scintillating crystals in PET scanners (LSO and LYSO)
I’ve never seen someone love chemistry more than this man right here
Your channel has always been so helpful. I am not able to get higher education but so enjoy sharing such fascinating info with family.
2:02 "So we only had very small pieces of the metal" *yeets a piece of it off-screen*
yeets?? a word not found in any of my dictionaries
Carl Auer von Welsbach actually had some intersting inventions and even was founder of the brand Osram (which produce lights).
Actually, it would be neat to see a series on the lives and inventions of 19th-20th century chemists.
I love yalls videos. Cause you give tips and ins and outs of science. the bit "If you heat nitrates they'll give off nitrogen dioxide" is a super useful tip :D
"Prostate cancer, a very unpleasant disease."
Dr. Martin understating quite a lot, here. hehe
Thank you for all of your hard work, I very much appreciate this video series. Marvelous, simply marvelous.
LuAG:Ce is also commonly used as a scintillator to convert synchrotron X-rays to visible light in a sCMOS (or CCD) camera for imaging.
Hope you have been safe, professor!
In which university..
Just a little nitpick I have, Carl Auer von Welsbach was from Austria, not Germany
This is about chemistry. Not history.
@@SonofTheMorningStar666 Chemistry is history in big parts.
@@SonofTheMorningStar666 No, if it were solely about chemistry the history of this elements discovery would not have been covered. It is about the history of chemistry, where they have made a mistake that I pointed out, or do you have a problem with that?
@@diewildemathilde4432 Ouch! In a bad mood? My answer is no and my comment was ment to be lighthearted.
@@SonofTheMorningStar666 Still, if you are stating anything, and some parts are not true, simply it loses relevance
It is a great nonmagnetic substitute for Yb. I am finishing out my PhD work in a lab that specializes in growing single crystals of lanthanide compounds. If you have a single crystal of YbFe5P3, and a single crystal of LuFe5P3( assuming both exist and have the same crystal structure) you can measure the heat capacity and/or the electrical resistivity of both and subtract the latter compound from the former compound. I am sure the professor can talk how the f-shell of Yb is one electron short (depending on oxidation state), while the f-shell of Lu usually has all 14 f-electrons.
The hard part is actually growing the single crystals in molten In, Sn, Pb, Ga, Bi, Zn, etc at ~1000 C.
Auer von Welsbach was an Austrian chemist. The big chemistry lecture hall at University of Vienna is named after him.
Its funny how a chemistry professor at the top of his field still has a soft spot for pretty chemical colors
Another potentially game changing future application: Ambient Superconductors.
Do love these educational nuggets. Always learning something new.
I also plan to make a video about lutetium!
Always a pleasure to see you cover another element!
Hehe. I'm from Perth West Australia. The paper on meteorites was from WAIT (Western Australia Institute of Technology)which is now called Curtin University. It was going to be renamed WAIT & C (Western Australia Institute of Technology & Computing).
Lots of Hafnium in Western Australia. I didn't know it came from outer space... Then again, everything did.
Love your videos guys. I've learned so much.
I learned in school that THREE people discovered it at almost the same time, the two named and an American chemist named Charles James. I also thought Welsbach was an Austrian. Not that these at all effect my enjoyment of the video. It's just rare that I can add something but details of this one stuck in my memory because it's number 71.
If I never knew him and saw him at a supermarket, I would have probably guessed him to be a chemistry professor
Good work as always Martin these videos always bring a little spark of joy in my life
I would have liked to have heard more of it's physical properties, even if it's not particularly spectacular.
@MichaelKingsfordGray Plenty of people know my name, it's just a privilege. One that evidently is not worthy of you, sir. Why are you getting combative to a stranger just expressing a suggestion on an educational video?
Woaahhhhh..... I'm craving for your videos! It's finally there 🔥🔥🔥
I swear to the almighty chemistry gods, I was just reading the Lutetium Wikipedia article. Freaky...
That's why they chose to make this video.
It's called Baader meinhof phenomenon, aka the frequency illusion
Plate of Shrimp (Repoman reference)
@@danielkron2513 more likely google using your data
@@danielkron2513 yeah I understand that, but I was at the time literally just (as in closed chrome and opened UA-cam) and boom top of the new sub videos was this. Perfect timing.
2:08 a piece jumped away
There goes $10...
(Probably not. Lutetium is expensive at $10,000 per kg, but i doubt that piece weighed 1g.)
@@CristiNeagu Wow, I'm putting "1kg of Lutetium" on my Christmas wishlist. You never know!
Happy to see everyone safe and healthy
Notifications for your videos brighten my day instantly :)
The red (magenta, rather) flame colour was already visible when heating the Lutetiumnitrate in the test tube (3:34). The glass was probably contaminated at the outside.
love your vids! there very easy to understand for me, and I'm in 8th grade! thank you very much! I use these for school!
30 degree angle holder for the bunsen burner can be made for tilted test tube observations.
Everything in professor video is awesome which motivate us to love chemistry
Dissolving the decomposed nitrate should form the chloride, when reacted with hydrochloric acid, which could have been used to get a strong flame color.
I hope everyone is okay. I miss them
We need a video about the new room temperature super conductor.
I have a newfound appreciation for my last name
Im so happy to see you well!!
Auer von Welsbach was an Austrian, born in my town Vienna, and beside this element heavily involved with the discovery of Neodym, Praseodym and Ytterbium... as I just learned
Your chemistry videos are the best in the world
I like your videos, which often give me inspiration for my work. But I have just a little remark: Carl Auer von Welsbach was not a German, but an Austrian chemist... and yes... There is a difference...
The Professor is most effective at persuasion!
I rewatched the video about the undolliods (that is most probably spelled wrong) and wondered if you could use the resulting spheres as a catalyst because of their high surface area and convenient size. What does everybody think about this?
at about 4:00 you can see some reddish tint in the fire
Didn't the symbol for copernicium get chosen to be Cn to avoid confusion with the cyclopentadienyl ligand (commonly noted as Cp) in organometallic ccomplexes?
Yes, in fact this was the bigger factor, but new element names take into account any and all conflicts that may arise.
Although Copernicium probably decidedly lives in the realm of inorganic chem, I agree that still makes a whole lot more sense than people confusing it with a name that was never actually used by anyone but some old timey Austrian.
3:34 seems the exterior of the test tube is contaminated with the Lutetium nitrate, notice the beautiful red flame on the outside
I’d rather think thats coming from the borosilicate glass additives but you could be right as well
my one and only fav chemistry channel
I am so happy you are still alive!
If this is the office they give to a knighted professor, imagine what they give to new ones!
Something tells me he's a bit of a hoarder. 😏
This is his home study. I think it's probably what he got as a new professor and hasn't felt the need to change since.
They get a broom closet. If they're lucky the brooms are moved out first.
This is his home office. Look at older videos for his university office. (bigger, but full of stuff, too.)
This guy and his hair are global treasures.
0:09
oh... is that tge argument?
it is a member of group 3, class dismissed.
the periodic table is contracted, but if you stretch it back, Lutecium and laurencium automatically pop back to their places.
Thank you for that description and illustrations. It makes me curious regarding the where in the light spectrum that red emission is and what the chemical dynamics were in that flame.
3:34 why does the flame turn red outside the testtube?
Most likely just the combination of orange imparted by the sodium in the glass (soda glass) and some deep red heat glow (blackbody radiation). There could also have been some of the salt on the outside of the glass.
Most likely some Lutetium salt on the outside, or someone dipped it in Lithium or Strontium salts
Lu-177 is not just for prostate cancer, but many neuroendocrine tumors. For example, the drug Lutathera has had many successes in treating aggressive pancreatic cancers.
"My personal feeling is that...🥁
This is not a terribly important point"
Please be the president of the planet!! I love when non important debates are totally ignored.
I have been looking for the paper version of that exact table of the elements shown in the beginning. I used it in high school and have always wanted to get another. Any ideas who makes it?
This week in "persuading Neil"
I enjoy learning these facts.
Ask some of the Deep Sky Videos cast members about Cassiopia. Also, I've always envisioned a ballista as a catapult-sized crossbow.
Keep the chemistry coming 👨🔬⚛️🧪⚗️ I use some of your content to help me teach chemistry and physics.
Could you talk about the theory of Neutronium or element #0
Lutetium has always been my favorite element.
Can be used to treat some forms of NET cancer also.
I love these. Has there been a video on the most boring element?
This man is the perfect solution to have a peaceful day
Oooo! I love that color! Very pretty! Thank you for sharing!
In the section of his paper @ 1:12 is Urbain not discussing the atomic spectrum of the new element?
5:10 why is the flare hexagonal? Or hexagrammatic?
When you heat the test tube at 3:33 -I'd expect sodium yellow, but the flame around the glass appears deep red. Where do you suppose this is coming from? Is this a camera artifact, or was it actually red? It appears the same color as the element being burned.
When the lutesium nitrate is heated, the reaction that happens is 4Lu(NO3)2 --> 2Lu2NO3 + 12NO2 + 3O2
Hello, let me correct your reaction. I think the correct reaction is 4Lu(NO3)3 --> 2Lu2NO3 + 12NO2 + 3O2
Thanks so much Professor for explaining , very useful information's my regards.
They uploaded finally! I'm so happy! Made my day.
is that red flame at 3:33 a result of the Lutetium or just Black Body Radiation?
I would have guessed copernicium was named Cn due to the risk of confusion with the ligand pentamethylcyclopentadiene (Cp)?
That's the actual reason they had to have the symbol for Copernicium as Cn. I'm not sure if this was mentioned in any of the videos though...might have to look for it.
@@juijani4445 thanks!