Thallium - Periodic Table of Videos

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A new video about the element Thallium.
More links and info in full description ↓↓↓
Featuring Professor Martyn Poliakoff and Neil Barnes.
Thanks to The Royal Society of Chemistry for supporting this episode: www.rsc.org
Some papers and credits...
Preliminary researches on thallium: royalsocietypublishing.org/do...
The Royal Society: royalsociety.org/collections/
MEL Science: melscience.com/US-en/
Videos on all 118 elements: bit.ly/118elements
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More chemistry at www.periodicvideos.com/
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From the School of Chemistry at The University of Nottingham: bit.ly/NottChem
This episode was also generously supported by The Gatsby Charitable Foundation
Periodic Videos films are by video journalist Brady Haran: www.bradyharan.com/
Brady's Blog: www.bradyharanblog.com
Join Brady's mailing list for updates and extra stuff --- eepurl.com/YdjL9

Опубликовано:

6 сен 2021

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Комментарии : 487

@jameshounslow7013 2 года назад

Could I suggest a subject to do a video on please? I’m interested to see how such dangerous chemicals and solutions are cleaned up after use, how the air filtration systems work so no poisonous fumes are let out into the atmosphere, and how do you know which solutions/chemicals render the dangerous solutions inert and how do you double check that they are inert. Thanks.

@Ixaglet 2 года назад

"Thallium poisoning makes your hair fall out"

@MMuraseofSandvich 2 года назад

A friend with a Ph.D. in chemistry told me once that working with thallium is kind of like working with radioactive substances: you need an entire separate lab just to handle them safely and prevent the thallium from contaminating other reagents. That might be overkill (Neal certainly knows what he's doing), but I would imagine that would certainly be the case in a commercial lab, they wouldn't want the liability.

@LabCoatz_Science 2 года назад

These guys never disappoint; very cool to know Martin worked on those thallium halide windows! I would be very interested to see the test is for thallium poisoning demonstrated, if you ever return to thallium.

@bjornmu 2 года назад

Thallium was used in a murder case in my city (Trondheim, Norway) in 1999. He first denied everything but then admitted to having poisoned his ex girlfriend but didn't intend for her to die. He said he wanted her to lose her hair and become less attractive to other men. I think he's still in jail.

@glenngriffon8032 2 года назад

That's what I like about this channel, sometimes the scientists are caught completely by surprise by an experiment. They know what to expect most of the time but once in a while something surprises them.

@randaranatunga7259 2 года назад

This man is a true treasure,

@Bigcubefan 2 года назад

A few years back in 1983 there were cases of Thallium poisining at the University of Würzburg in Germany.

@ottolehikoinen6193 2 года назад

"Neil got nearly 50 grams of Thallium" and everybody ran of of the lab?

@Eddie42023 2 года назад

There's irony, a most poisonous element named after 'the color of life'.

@deelaneenn6677 2 года назад

Just brightened my whole day. Always a pleasure seeing the professor.

@theunknown4834 2 года назад

"Doesn't worry Nill, but makes me nervous"

@r3q92 2 года назад

ah yes, lead's angrier little brother

@MMuraseofSandvich 2 года назад

Agatha Christie had a fair bit of knowledge of all kinds of poisons from working in hospital dispensaries (pharmacies in US English?) during both World Wars, and she was a pioneer in murder mystery literature where the murder weapon was a poison of some form; over half her novels feature poison as the method.

@Noble4Truths 2 года назад

I find it so wonderful when science surprises even those most learned researchers.

@AttyMonroe 2 года назад

What a great surprise! I was just watching the old videos when this popped up.

@johannesthe5th154 2 года назад

4.21 looks like a yellow dragon taking a dive down. Beautiful

@gnypp45 2 года назад

When I started my PhD project in infrared materials there was a Japanese research group which used to grow TlInP on InP substrates with molecular beam epitaxy. It was so dangerous that the professor allowed no one else but himself to clean the chamber afterwards.

@graemepennell 2 года назад

Seems like YEARS since there was a new one. Great to see.

@renanzorzatto 2 года назад

Well, the brown precipitate might be thallium(III) hydroxide - Tl(0H)3 -, which is formed throughout the solvation of TlCl3. In fact, the Ksp for Tl(OH)3 is ca. 10^(-45.2).¹