Most of them are some sort of stable compound or another. You can get different reactions by mixing them together. That one's lithium chloride...it can be used for a lot of stuff. It can be used to color fire, though, it makes it a really nice crimson color.

[...]

I'm not going to mess with the sodium azide or anything, but it looks like it restocked. I'm not surprised at all, just kind of irritated.

He mixed it with the cold pack, by the way. There's ammonia in there, if you break it open - that's what some of the fluid is.

[He'd known exactly what that was used for during the trial, in other words, and it had nothing to do with injuries; he just hadn't said anything.]