> chemistry > divers-inorganiques > from-thorium-hydroxyde-to-thorium-chromate-rhodanide

Making Thorium Chromate

Rhodanide - 2020-07-24

Thorium doesn't get enough love. Today, I'll be making a bright orange compound of Thorium containing not only the carcinogenic Chromate ion, but the radioactive Thorium(IV) ion as well (go figure!).
I'm not responsible for damage to persons or property caused by the replication of this experiment. 

Consider supporting the continued production of videos like these: https://www.patreon.com/Rhodanide 

My Twitter: https://twitter.com/Rhodanide



Songs used: 



ZOMBIENICK - STALKER 

https://www.youtube.com/watch?v=fueD5C97uQs&list=PLwFjBz9QzCYVwfIlEWO1VSL5nLZ_wzDKB&index=3&t=0s

PoorMans Chemist - 2020-07-24

Very cool man! I love the "spicyness meter"! 🤣

Achyuth - 2020-11-19

I like your channel very much

Quantum Lab - 2020-07-24

I always enjoy radioactive chemistry. You should do a video on how you clean your apparatuses after doing a radioactive synthesis and how to dispose of the waste.

Rhodanide - 2020-07-24

That'd be a pretty boring video.
I just try not to make dust, do a visual check when I'm done, scan the area with my detector. Any solid waste (i.e. filter papers) goes into a bag, the bag gets labeled, then that bag goes into a heavy steel box I got in my garage. The liquid waste goes into old milk containers, which are labeled and separated from the other liquid wastes. The activity on the waste is almost always very low, and I can't get much of any reading on the outside of the steel box, and the liquid containers are only slightly above background when the detector is held up right outside of them. Now you know. Not doing a video on it though, would be boring.

Quantum Lab - 2020-07-24

Thanks, that’s all I really wanted to know. And I would agree that it would be a boring video. Keep up the great work.

Rhodanide - 2020-07-24

I may do some of that stuff in the future, I'll have to see.

DUIofPhysics - 2020-08-13

@Rhodanide Question is, what will you do with the box of Spicy stuff?

BackYard Science 2000 - 2020-07-24

Cool! I love how you labeled it as "mild", lol! Great video!

FerraGamo - 2021-03-15

Thank you so much for all your videos. I love your channel. Your videos inspire me to learn chemistry more

R Johnson - 2020-07-25

A while back, I had this non-medical teacher in a med. school course.
During a break, I asked her a question.
She went on a rant against nuclear power.
Meanwhile, I spotted she was wearing a "negative ion bracelet".
An air ioniser cleans air by ionising the dust, so it sticks to the floor & walls instead of going into your lungs. Which is why having one at home decreases your risk of getting infections, toxic mould, and a lot of other lung-related problems.

However some in some countries, they sell "negative ion generators" which you can carry around since they require no external power to work.
Problem is they contain a pellet of radioactive thorium.
I pointed this out to her, and her smirk quickly turned into despair as she discreetly put the bracelet in her bag.

Whenever I hear "thorium", I'm reminded by that moment.

Mayzel Vanadate - 2020-07-26

Absolutely love the editing.

Rhodanide - 2020-07-26

Thanks!!

Liam Gilhooly - 2021-04-13

yeah, i think it really add to it

pineapple ‎ - 2020-07-24

I found some Mercury Trifluoroacetate (I think)

Any idea what that could have been used for?

TheBackyardChemist - 2020-07-25

@Rhodanide I heard someone who scored about 20 ampules of hexachloroplatinic acid, 1 g per ampule. I think he got it for free or in a cheap bundle of "lab decommissioning".

pineapple ‎ - 2020-07-26

Gotta clean up the basement of a dead chemistry teacher and sadly also a hoarder.
I don’t want to brag, but...

I also have a kilogram of mercury, various other mercury salts (luckily no organic mercury compounds), thallium salts, permanganates, chlorates, nitrates, barium salts, tetrachloroethylene, carbon tetrachloride, chloroform, sodium azide, ferrocene, sodium, probably multiple litres of hydrochloric, nitric and sulfuric acid, even some Cobalt-60 (almost completely decayed tho)

And a couple of niche chemicals that I can’t even remember the names of.

Probably a lot more that I haven’t seen yet.

magicponyrides - 2020-08-15

@pineapple ‎ Please don't die from the thallium.

Californium-252 - 2020-09-12

As a toxic catalyst.

pineapple ‎ - 2020-10-14

I also found some radioactive sodium iodide solution! from 1983... not spicy anymore

And no I won’t die. It’s luckily all safely stored

TheCaptainLulz - 2021-05-31

How did you get rid of the waste though? Im lucky in that I can put it in an abandoned uranium mine but not everyone can do that.

Mortlet - 2020-07-24

Yellow chemistry = Very cool video showcasing yet another exquisitely rare inorganic for the first time! ????
The fuck!?
Well, I suppose it is still trying its absolute best to murder you...

Also, those dried flakes look like they would make some very nice yellow paint for a radiation warning sign. :)

Rhodanide - 2020-07-24

One of the more active items I have is an old fiestaware plate which I believe used UO3 in its glaze. Registers at 40,000 CPM.

Bearcat Ben - 2020-07-24

can you believe people put this in toothpaste back in the day?

Dean Maritz - 2020-07-24

Hell yeah, more rhodanide baby

Per technetyl - 2020-11-06

I've noticed slightly pinkish colour of my CeCl3*7H2O. As Th is derived from Ce-rich ores, and these bear some Nd, then I wonder if maybe some Nd may land in (impure) Th compounds?

chnhakk - 2021-01-03

You can test for neodymium by looking at the light transmitted through the solution with a diffraction grating. Neodymium absorption bands are very obvious.

Per technetyl - 2021-07-20

@chnhakk I'am actually about to use pXRF, as it's easier (:

Per technetyl - 2021-07-20

I think the colour might also be related to the fact, that "ceroceric oxide" is said to be violet. If there are any Ce admixtures, and co-deposition of Ce(OH)3 with Th(OH)4, then the cerous hydroxide could, likely, be partially oxidized to give a colouration: http://cerium.atomistry.com/ceroceric_oxide.html

Per technetyl - 2020-11-06

At least, some rare salts in the internet! Thanks!

Steakhouse John - 2020-07-24

Not to be safety patrol, but I hope you took the necessary precautions against the hazards of thorium dust. I’m no expert but I’m pretty sure inhaling that stuff takes the spiciness up a few notches.

Rhodanide - 2020-07-24

Yes I'm very aware of the dust, and luckily there really wasn't much of any. Still wore a mask though, which is part of the reason why I wasn't talking. :)

JamesG - 2020-07-24

Does it taste as good as it looks?

Piperliam - 2020-07-25

Ok now this is an epic video

science_and_anonymous - 2020-07-25

Grade A cinematic experience

Dalitas D - 2020-07-25

love the chem, but damn, you own a fricking ludlum detector?! lucky bugger!

Rhodanide - 2020-07-25

One of the best presents I've ever gotten!

Chemistry of Questionable Quality - 2020-12-05

You should sell some of the thorium hydroxide to someone as crack. Jk,

Tom's Lab - 2020-07-24

5:20 the forbidden orange juice...

:pepega: :pepega: :pepega:

trustthewater - 2020-07-24

Try NEW Radithor: Florida Grove™

Narogen - 2020-07-24

The feds have already raided cody. Expect visitors soon. Jk, but a really cool vid, keep up the radioactive chem!

JamesG - 2020-07-24

I hope you don't mean recently (again?)...

trustthewater - 2020-07-24

I think that had more to do with processing uranium ore.
Uranium in ore is fine. Trying to get the uranium out of the rock is not.
That being said, there are still certainly laws and regulations to watch out for. NRC or local PCA may have problems with this sort of thing.

Rhodanide - 2020-07-24

@trustthewater None of my Uranium was sourced from ore. All was bought as-is or made from one starting material (in this case ThO2)

trustthewater - 2020-07-24

@Rhodanide The extraction would be interesting to watch but I'd rather have you be able to continue making these great videos.

BackYard Science 2000 - 2020-10-14

Eh, the feds aren't so bad. Well, if you don't have anything to hide I mean. They've been to see me twice now. Great fellas.

iboganaut - 2020-08-26

deserves more views

Rhodanide - 2020-08-26

Thanks!

Definetly not a Comment - 2020-07-24

Yellow chem is is not bad.
Yellow chem is spicy!

La Rose Rouge et Noir - 2020-07-24

Really cool spiciness meter

Rhodanide - 2020-07-24

$400 Spicyness meter!

JamesG - 2020-07-24

@Rhodanide That's a prize! A piece of history in its way, funky, stylish, all while being wholly useful. I'm pretty sure you got a great deal at that price. ENVY! ;-)

evilotis01 - 2020-07-25

0:38 Pandora would be proud of this

Rhodanide - 2020-07-25

WHAT'S IN THE BOOOOOOOX?!

Mr Mürk - 2020-07-24

so its all ASMR this time?

Tom's Lab - 2020-07-24

Always has been

Rhodanide - 2020-07-24

@Tom's Lab you legend

Emme Pombär - 2020-07-31

Where the fuck do you get radioactive...

reads cyrillic army box

Okay, never mind, tawarish.

Rhodanide - 2020-07-31

Haha! I'm not Russian, no. That was the box that my ammo came in for my Mosin Nagant. As for the radioactive materials, they were legally bought from online sellers.

Clinton Gryke - 2022-02-10

Scary chemicals!

TwoSquids - 2021-10-21

You should put some chill beats in the quiet parts

Rhodanide - 2021-10-21

True

TwoSquids - 2021-10-21

@Rhodanide I do really like the video style. Nice change of pace from the chemistry videos with tons of talking. I gotta believe there are more people like me who would chill out to some relaxing tunes and chemistry. Keep up the good work!!