Products - Airgas.com

Pure Gases
Air

Description:

Zero air is often used as a fuel gas for flame ionization gas chromatography (FID). Dry air is used as a biological atmosphere. 

Properties:

  Molecular Weight: 28.96
  Specific Volume: 13.3 CF/lb
  Flammable Limits: Nonflammable
  CGA Valve: 590
  DOT Name:
Air, Compressed
  UN No.: UN1002
  DOT Class: 2.2
  DOT Label: Nonflammable Gas
  CAS Registry: 25635-88-5