Where Can I Find Sulphur Hexafluoride Gas?

Question

I really want to try the deepining voice experiment, but have no idea where to find the gas. I am not going to buy a tank of it, so I would really like some help to as where I can find this gas in my own home, or at the store.

Answer 1

Airgas sells it (airgas.com), but it's in cylinders and they don't list a price - likely to be expensive.  I doubt that any "regular" stores are going to carry it - there's no real use for it around the house.

If you're in school or any kind of science club, perhaps you could talk a teacher/professor/club into buying enough for the voice demo?