"Little flecks of plutonium in a green gel. It's called a..."

Factual Questions
1

I realize this is only a movie, but lots of things in movies are at least based on reality, so let’s try this one:

In the movie The Manhattan Project, a laboratory that is processing plutonium is said to be storing “little flecks of plutonium suspended in a green gel.” The same character then says, referring to the green gel, “It’s called a sintillin.” At least, that’s what it sounds like the character is saying, because as far as I know, “sintillin” is not a word.

So the question: Is plutonium ever stored in such as way, and if so, does this green gel have a name? I hate the thought of being outdone by a minor 1980’s thriller (which still managed to cast major talents Lithgow and Mahoney). Thanks…

2

Suspension?

3

Well, technically, the gel and the plutonium together would be a suspension. The gel alone would be???

Alberto’s V05?

4

Probably something to do with “scintillation,” which can involve the use of a gel that emits light when a charged particle passes through it.

5

Hmmm - how scintillating! (Yikes…)

Yes, a google search for “scintillant” and “plutonium” produced 91 hits. Most of the references to “scintillant” seem to involve using it as a liquid suspension medium of some kind. Similar to the usage in the movie, although the movie portrayed the green gel as an inert carrier substance, rather than a chemically active component.

Cool - I like when I be gettin’ smarter…