The Naked Scientists

The Naked Scientists Forum

Author Topic: combining gases  (Read 2843 times)

Offline jockaneese

  • First timers
  • *
  • Posts: 1
    • View Profile
combining gases
« on: 17/09/2005 20:56:42 »
hi all,
i'm after some help, i'm not realy the science type.
Just wondering how to combine gases, specificaly nitrogen and oxygen, do they need a catylyst or what?
any help would be most welcome
Jockaneese


 

Offline ukmicky

  • Moderator
  • Neilep Level Member
  • *****
  • Posts: 3011
    • View Profile
    • http://www.space-talk.com/
Re: combining gases
« Reply #1 on: 17/09/2005 21:55:28 »
Im not an expert, but i think in order to make nitrogen reactive so  you can combine it with oxygen you need to break the bonds holding its  atoms together in the molecule  

And to do that you need extremely high temperatures as the bonds are very strong.

Hopefully someone one who knows what there talking about will anwser your question soon:)
« Last Edit: 17/09/2005 22:23:30 by ukmicky »
 

Offline David Sparkman

  • Sr. Member
  • ****
  • Posts: 234
    • View Profile
Re: combining gases
« Reply #2 on: 18/09/2005 03:03:53 »
I think you would be talking about a simple mixture as Nitrogen and Oxygen don't form a compound with each other. There are loads of compounds that include these two such as HNO3 (nitric acid)

David
 

Offline ukmicky

  • Moderator
  • Neilep Level Member
  • *****
  • Posts: 3011
    • View Profile
    • http://www.space-talk.com/
Re: combining gases
« Reply #3 on: 18/09/2005 03:25:04 »
David

Im not being funny :Dbut if nitrogen and oxygen dont form any compounds whats laughing gas made out of.
« Last Edit: 18/09/2005 03:26:25 by ukmicky »
 

Offline Simmer

  • Sr. Member
  • ****
  • Posts: 229
    • View Profile
Re: combining gases
« Reply #4 on: 18/09/2005 11:01:41 »
You can certainly get nitrogen oxides from the air at high temperatures!  I once sealed a batch of a hundred Griess reagent ampoules in air with a propane burner.  Next day they were all pink!  Grrr [:(!]  A common problem, apparently, and not just for careless chemists! http://www.hnd.usace.army.mil/techinfo/UFC/UFC3-430-03/TM58151/chap11.pdf

I don't know of a suitable catalyst for making the stuff but I wouldn't be surprised if you find some.  Molecular gases are often a bit slow to react and a suitable surface that brings them together in the right orientation can speed things up no end. :)

According to this site http://www.chm.bris.ac.uk/motm/n2o/n2oc.htmyou can make nitrous oxide by reduction of nitrogen monoxide with iron.  Not worth the effort though; if you're after a good laugh ethanol is far superior IMO :D
 

The Naked Scientists Forum

Re: combining gases
« Reply #4 on: 18/09/2005 11:01:41 »

 

SMF 2.0.10 | SMF © 2015, Simple Machines
SMFAds for Free Forums