@allenJo - That's interesting. I never thought of that before.
I think it should be pointed out that even substances which would normally be classified as volatile matter can go dormant.
Take gasoline for instance. I have some old gasoline in my garage from my lawn mower. I try to empty my lawn mower gas by the time the last mow of the season rolls around, but that’s not always possible.
I never know where to take the excess gas because the recycling facility doesn’t want it, and I’m certainly not going to spill it on the ground. So I keep it in a jar. Is that good or bad? I don’t know.
But I can tell you this – after awhile, it doesn’t ignite anymore. It’s completely dormant. I know because my wife’s car ran out of gas once, and I tried to use the old gas to bail her out, but it didn’t work. There was no ignition.