×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Contact US

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • 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!

*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.

Students Click Here

Dewpoint of Nitrogen

Dewpoint of Nitrogen

Dewpoint of Nitrogen

(OP)
Hi,

I have been asked to find out what the dewpoint of nitrogen.
From google it says the following: "Bottled nitrogen is often specified as dryer than 2 ppm (parts per million) equivalent to a dewpoint of -94°F (-70°C).

However, someone once told me that the dewpoint will be affected when the gas has been in liquid form (LIN, as it has in my case) before it is in gas form.
Based on people I have talked with, the dewpoint of nitrogen gas that comes from liquid nitrogen is -60°C, not -70°C.

Can anyone confirm/deny this?

Note; I am still not sure what the dewpoint actually is, so if anyone can help explain it on a basic level that would also be much appreciated.

Best Regards,
Arve

RE: Dewpoint of Nitrogen

When we bought bulk liquid the guarantee was -60C.
Most days it was actually <-100C.
Getting high pressure bottled N2 better than -40 can be difficult.

= = = = = = = = = = = = = = = = = = = =
P.E. Metallurgy, consulting work welcomed

RE: Dewpoint of Nitrogen

Dew point is mea sure of moisture in Nitrogen. Pure nitrogen gas, which is produced from liquid nitrogen can scribd -70 deg C. 8f moisture level is around 100 ppm few point would be -40deg C

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

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! Already a Member? Login


Resources

Low-Volume Rapid Injection Molding With 3D Printed Molds
Learn methods and guidelines for using stereolithography (SLA) 3D printed molds in the injection molding process to lower costs and lead time. Discover how this hybrid manufacturing process enables on-demand mold fabrication to quickly produce small batches of thermoplastic parts. Download Now
Design for Additive Manufacturing (DfAM)
Examine how the principles of DfAM upend many of the long-standing rules around manufacturability - allowing engineers and designers to place a part’s function at the center of their design considerations. Download Now
Taking Control of Engineering Documents
This ebook covers tips for creating and managing workflows, security best practices and protection of intellectual property, Cloud vs. on-premise software solutions, CAD file management, compliance, and more. Download Now

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