Mark Iverson <zeropo...@charter.net> wrote: Can't remember if this has ever been discussed... > Is the (industrial-grade?) hydrogen gas pure, or is there some D2 in it? >
There is always the natural abundance of D2 in ordinary H2. It is 1 part in 5,400 according to NIST. You would have to go to a lot of trouble to remove it. - Jed
