Bedlasky - 14-3-2020 at 18:27
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?
elementcollector1 - 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.
Deathunter88 - 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.
Bedlasky - 15-3-2020 at 05:23
Thanks.
Bedlasky - 20-3-2020 at 18:40
Hi.
I finally have cerium metal 
. 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.
Herr Haber - 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.
Fery - 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.