http://mattson.creighton.edu/Microscale_Gas_Chemistry.html (http://mattson.creighton.edu/Microscale_Gas_Chemistry.html)
is more for educational purposes.
In this thread is so damn much chemistry-info, you could read for years, instead of asking repeating questions :) :
Post 177849 (https://www.thevespiary.org/talk/index.php?topic=10855.msg17784900#msg17784900)
(LaBTop: "FIRST READ for MEMBERS new and old!", Newbee Forum)
And in here somewhere there are extensive data on all gasses:
Post 26266 (LaBTop: "CHEMISTRY "LINKS" COMPILATION update 07aug.", Newbee Forum)
Topic : CHEMISTRY "LINKS" COMPILATION update 07aug2000. (LaBTop)
De facto, combined with the above, all answers on most questions in the chemistry forums.
Post 26266 (missing)
(LaBTop: "CHEMISTRY "LINKS" COMPILATION update 07aug.", Newbee Forum)
I'm not sure if all links will still work after these years, just try. LT/
Edit: And this one, it's a bit chaotic reading, due to several boardsoftware hickups, but still is the biggest source onboard for anything chem related:
Post 27296 (missing)
(LaBTop: "CHEMICAL ENGINEERING LINKS updates:22/07", Newbee Forum)
Scroll down to ==========> gasses.