Smart questions
Smart answers
Smart people
Join Eng-Tips Forums
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Member Login




Remember Me
Forgot Password?
Join Us!

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips now!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!

Join Eng-Tips
*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.
Jobs from Indeed

Link To This Forum!

Partner Button
Add Stickiness To Your Site By Linking To This Professionally Managed Technical Forum.
Just copy and paste the
code below into your site.

ColonelSanders83 (Mechanical) (OP)
12 May 11 15:42
Hello All,

I have suddnely found myself needing to weld a few sock-o-lets to a couple of ammonia lines. Apparently the holes have already been cut in the lines and I have been requested to evaluate the use of Argon as a backpurging gas in the pipe to perform the welding. Apperently there is a small risk there may still be a small amount of ammonia vapor present. Normally I would use nitrogen to purge out the system, but since they have plenty of Argon at site thats what they would like to use.

A google search on the subject came up dry, so I was wondering if any of the more experienced folks here could offer some guidence. Are there any interaction concerns with ammonia and argon? Am I going to regret allowing (or disallowing this) in the near future? I absolutley hate to make a decision with no information. Any help or guidence or useful referances on the matter would be greatly appreciated.  

A question properly stated is a problem half solved.

Always remember, free advice is worth exactly what you pay for it!  

http://www.ap-dynamics.ab.ca/

vpl (Nuclear)
13 May 11 13:37
Argon's a noble gas and doesn't interact with most substances.  Wiki has some information about a compound of argon, hydrogen and florine, but it sounds like that was the result of a lab experiment.

Somewhere along the line, Wiki's turned into a reasonable reference (at least on some things): http://en.wikipedia.org/wiki/Argon#Characteristics

Patricia Lougheed

******

Please see FAQ731-376: Eng-Tips.com Forum Policies: Eng-Tips.com Forum Policies for tips on how to make the best use of the Eng-Tips Forums.

Helpful Member!  Latexman (Chemical)
13 May 11 14:12
Argon is extremely stable.  I would not expect any reaction issues with it.

NOAA has an excellent Chemical Reactivity Worksheet you can download and install.  It might have Argon and Ammonia in it's database.

Good luck,
Latexman

ColonelSanders83 (Mechanical) (OP)
13 May 11 15:09
Latexman,

Thanks, that was just what i was looking for. Ammonia and Argon were present in the tables with no reactions expected between them.

Handy little program to add to my stash of cool stuff.

A question properly stated is a problem half solved.

Always remember, free advice is worth exactly what you pay for it!  

http://www.ap-dynamics.ab.ca/

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!

Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close