Oxygen (O2)

Oxygen (O2) makes up 21 percent of the earth's atmosphere, supports life and makes combustion possible. The most abundant of all elements on earth, oxygen comprises 85 percent of its oceans and, as a component of most rocks and minerals, 46 percent of its solid crust. In addition, it constitutes 60 percent of the human body.

Colorless, odorless and tasteless and a specific gravity of 1.105 making it slightly heavier than air. When cooled to its boiling point of -297°F (-183°C), oxygen becomes a transparent, pale blue liquid that is slightly heavier than water.

Although oxygen itself is nonflammable, it enhances combustion and enables all materials that are flammable in air to burn much more vigorously. These combustion-supporting properties account for its use in many industrial applications.

Common uses of Oxygen?

Oxygen is commonly used to enhance combustion in the cutting operations, welding gases, supplemental medical oxygen, chemical processes, metal production, refining, waste water treatment and many more.

Common Cylinder Sizes

Bulk - call for details
Liquid Cylinder Gas Delivery, GPO50 - 4,650cf @ 250psi
K - 249cf, S - 154cf, Q - 83cf, G - 40cf, R - 20cf all 2,200psi at 70°F
Cylinder Pressure changes with temperature, click to find out details (pdf)
Larger Cylinder Sizes and High Pressures available. Please call.

Common Conversion Factors

1 gallon liquid (nbp) = 115.1 cf Gas (NTP)
1 liter liquid (nbp) = 30.39 cf Gas (NTP)
1 kg = 26.62 cf Gas (NTP)
1 pound = 12.08 cf Gas (NTP)

Properties of Oxygen:

Molecular Weight: 32.0
Specific Volume: 12.1 CF/lb
Flammable Limits: Strong Oxidizer
CGA Valve: 540
DOT Name: Oxygen, Compressed
UN No.: UN1072
DOT Class: 2.2
DOT Label: Nonflammable Gas, Oxidizer
CAS Registry: 7782-44-9

Oxygen Purity Levels

Cylinder Size Details (pdf)

MSDS

Safe Handling of Compressed Gases (pdf)