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Bedlasky
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[*] posted on 14-3-2020 at 18:27
Cerium pyrophoricity

Hi.

I am thinking about buying some cerium metal. I read some time ago that cerium is pyrophoric. I suppose that only in form of dust, but I am not sure about that. Have you some experiences with storing cerium metal?
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elementcollector1
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[*] posted on 14-3-2020 at 18:54


In finely divided form, it's pyrophoric. See this page for behavior in bulk form:

https://www.elementsales.com/re_exp/

Under argon or mineral oil, it should present no significant problems.



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Deathunter88
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[*] posted on 15-3-2020 at 00:25


Ferrocerium rods contain a large percent of cerium, and those don't catch fire spontaneously. You will be fine.
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Bedlasky
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[*] posted on 15-3-2020 at 05:23


Thanks.
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Bedlasky
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[*] posted on 20-3-2020 at 18:40


Hi.

I finally have cerium metal :D. I bought it along with Mo and Mg powders. Seller send it in plastic vial with mineral oil. 3g of Ce costs 117Kč (4,25€).

For CZ members: I bought these metals here. This seller mainly sell elements - for hobby chemists and also for element collectors. He also sells some chemical compounds and other useful stuff.

IMG_20200321_012241.jpg - 2.2MB
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Herr Haber
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[*] posted on 21-3-2020 at 01:05


I've had Cerium lumps. It oxidizes fast and disintegrates as a powder.
Never tried to use it in a composition and see if there was metal left or just the oxide.

Storing in oil seems smart.



The spirit of adventure was upon me. Having nitric acid and copper, I had only to learn what the words 'act upon' meant. - Ira Remsen
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Fery
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[*] posted on 21-3-2020 at 14:01


Bedlasky - do you need Ce metal, couldn't you use its oxide which is much more cheaper?
I visited the eshop you mentioned few times already but always found cheaper sellers, especially from Poland where no problem of buying few kg which were on stock and shipped immediately.



If there is a heaven, it seems not to be materially based. Does chemistry exist there and if yes, how does it look like? Are there good souls well supplied with laboratory equipment, glass, chemicals and information?
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