On 6 Jul 2018 at 6:08, David Hillman wrote:

>  The Question:
> This element must be stored in mineral oil because if it combines with
> water, it will explode if exposed to an ignition source. This element
> is found in monazite sand.This element is used as a glass dye. Early
> glass using this element as a dye made in the 1930s have a more
> reddish or orange tinge than modern versions which are more cleanly
> purple, due to the difficulties in removing the last trace elements
> when manufacturing relied upon fractional crystallization technology.
> The  drive electric motors of each Toyota Prius require one kilogram
> (2.2 pounds) of this element per vehicle. The use of this element in a
> commercial product has led to at least 1,700 emergency room visits for
> gastrointestinal tract problems. Which element is being described?

Neodym

Regards
Matthias
--
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