Is that the stuff you can use to etch glass? I remember my chem/physics teacher talking about etching glass back in the day with some compound they won't even let into the [high school] classroom anymore.
He also told some old tales about someone dumping a large quantity of sodium in a creek that rattled windows a mile away.
I'm never certain which of his tales are accurate and which have expaaaaaaaaaaaaaaanded with the 30 years he's taught chemistry. (my dad before me! and my dad's OLD)
I don't remember ever making much on chem lab days other than solutions of copper and stuff. The flame tests were more fun 8)
also I would always peek when magnesium was exposed to air/burnt/whatever. It was beautiful.