Phil wrote:

I'll second that, and always leave the cylinder valve key in
the
oxygen valve - oxygen being the far more volatile and dangerous gas.


How can any *gas* be volatile, let alone oxygen?

Oxygen boils off very easily - I'd say that was volatile.

He said it was a volatile *gas*. How does a *gas* boil off?

I'm not disputing that liquid oxygen is volatile.

MBQ