Elemental Extractions 7: Nitrogen Part 2

[@spicksSC]

In Plant genetics, liquid nitrogen is actually quite commonly used for DNA extraction. You dip plant parts (e.g. leafs, petals, roots, etc) into your liquid nitrogen and then you grind it into a fine powder. Through downstream processes you can obtain the DNA in a concentrated form and do all kinds of amazing things with it!

[@mrhomescientist]

Neat! Thanks for sharing that.

[@Freizeitflugsphaere]

Didn't know that led thing yet...

[@Flederratte]

Great video!

[@piranha031091]

Cool stuff! Have you ever tried making nitrogen ice-cream?

[@mrhomescientist]

Sadly no, not yet. They used to do it all the time at work whenever their tanks' pressure got too low for their instruments, but I was never around every time they did it. Now that I have easier access to it myself, I really need to!

[@EdwardTriesToScience]

The reason why the yellow led is orange, is because the voltage is slightly too high, so it heats up, and hot leds try to go red.

[@KowboyUSA]

Man, sure wish I had a proper Dewar flask.

[@targaryen3671]

Amazing

[@shanejohns7901]

@10:00 I think it is best to call that 'liquid air'. Pure liquid oxygen is notably light blue in color.

[@Taha-hv6yj]

This is amazing you can extract xenon Krypton and argon fron atmosphere anddd you can make liquid chlorine!!!

[@schelsullivan]

Is it true that liquid oxygen can be pushed around by a magnetic field? But liquid nitrogen will not? Would have been cool to test that liquid dripping off the can with a magnet

[@mrhomescientist]

Yes! Liquid oxygen is amazing. I plan on featuring it in the next video in the series.

[@schelsullivan]

Cool I'm binge-watching your Elemental extraction series now. And I've clicked the notification Bell.

[@mrhomescientist]

@@schelsullivan Awesome! Thanks for the support.

[@F...G...]

kzbin.info/www/bejne/gJ_YkHepbdase5Y ;) I highly recommend that channel!

[@schelsullivan]

@@F...G... yeah everybody loves Cody

[@davidcrunkmd]

I'd love too see you ad some toner cartrige particles to the liquid nitrogen and put it on a magnetic stir plate!

[@swabianscience]

That thing about nitrogen being unable to be compressed into a liquid really interests me. I haven't found any phase diagrams of nitrogen online, but from what I have seen it looks like it gets supercritical. It still would be possible to store it under immense pressure, so that, when opened, the supercritical nitrogen just expands and cools itself until it liquefies, wouldn't it? It would still be a very bad idea...

[@Flederratte]

Yes that is exactly what I also would expect. The critical point of nitrogen is at a temperature of −146,95 °C at 33,9 bar. So below this temperature nitrogen can also be liquified by increasing the pressure to 34 bar. However at roomtemperature even under high pressure it cannot be liquified but instead it will just become a more dense gas. Releasing the pressure should cool the remaining gas inside the gastank and it will theoretically liquify as soon as its temperature is below the critical temperature and the pressure is still high enough.

[@superdau]

You can compress it into a liquid, just not at room temperature, because the critical point temperature is at -147°C. But that isn't something special about nitrogen. Quite few gases (especially the elemental ones) have a critical temperature below room temperature.

[@SamtasticOnline]

From some cursory reading, it looks like if you sealed liquid nitrogen in a container and heated it to room temperature, your container needs to be able to handle at least 10000 PSI, but you would still be left with a supercritical fluid, not a liquid. This is a cool rabbit hole I'm getting sucked into today.

[@Flederratte]

It is cool to watch the transition from a liquid phase and a gas phase to a supercritical fluid inside a transparent container. This is easy with gasses like SF6. Also the transition back to two separate phases out of a cloudy condensation mist is really cool. There is an video where CO2 was used: kzbin.info/www/bejne/fXbVZIGuqLWHhaM

[@darellroasa6846]

Hey I know that there are better ways to make nitric acid. Do you think it is possible to make nitric acid via sulfuric acid, using the 1st nitrogen extraction method that you did and the finally reacting or bubbling it to SO4 and H2O2 to make nitric acid?

[@Froddofromtheshire]

Kelvin is intensity, or the speed of which the matter moves. Your television is a few thousand kelvin less than required for fusion.

[@Themayseffect]

Can you try the balloon experiment again, but first coat it with some type of light oil like vasoline or baby oil.

[@dysprosiumion3269]

2nd, I suppose

[@Ribo_Flavin]

1st