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Will Cerium (Element #58) corrode completely if kept in open air?

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GammaBettaFluxx3000:
I recently acquired a sample of Cerium for my element collection.
It came in a plastic bag under kerosene.

I removed it from the package and washed it to remove the oil/kerosene.
The sample is now sitting in my desk in open air.

-- Can I keep it that way? Or Will it just oxidize further and further until it crumbles apart in a few months/years?

AWK:
https://www.webelements.com/cerium/chemistry.html

GammaBettaFluxx3000:

--- Quote from: AWK on January 25, 2020, 04:53:16 PM ---https://www.webelements.com/cerium/chemistry.html

--- End quote ---

Well, thanks, the link you provided only says Ce will tarnish when exposed to air. But that's all.
So my sample should be fine as long as I don't remove the layer of oxide that formed over it, right?

chenbeier:
If possible put it in a glass tube unter nitrogen or argon.

GammaBettaFluxx3000:

--- Quote from: chenbeier on January 25, 2020, 05:04:38 PM ---If possible put it in a glass tube unter nitrogen or argon.

--- End quote ---
Unfortunately I don't have access to any of those :/

But thanks anyway.

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