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58 Ce Cerium

Lanthanoid, mass: 140.12 u, 3 stable isotopes (136, 138, 140), abundance rank (earth/space): 28/51

Click image to magnify. Ultrapure cerium under argon, 1.5 grams. Original size in cm: 1 x 1
Cerium Cerium, too
Cerium is the most frequent of the lanthanoids, most of it occurs mixed with the others of them. Often it is used as mischmetal, which contains a natural lanthanoid mixture and is cheaper than the separated lanthanoids. This typically consists of 50% cerium, 20% lanthanum and neodymium, 5% praseodymium and the other lanthanoids in fewer amounts as well as iron and other elements. Iron and cerium are the only elements, where by hard and fast friction sparks can be produced.

Mischmetal
Flintstone from a lighter, made of mischmetal or ferrocerium, 2 mm diameter.


Creative Commons License The images are licensed under a Creative Commons Attribution 3.0 Unported License, unless otherwise noted. Attribution by linking to the according element page.


Page last changed on November 07. 2009

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