TheScienceCat

Yeah, that's a typo. It was late and I meant to type too toxic.

I was wondering what gas I should use on one of my projects. It needs to be denser than air, somewhat flammable, non toxic to humans in small amounts and preferably easy to see, like chlorine or bromine (But neither of these work, as they are less dense than air). I got this idea from a game character Scorch from Titanfall 2. He is able to shoot/launch out a gas canister and the ignite them, and I would like to do something like that. The gas can't be too expensive or hard to find.