BUY LIQUID NITROGEN OR PURCHASE COMPRESSED NITROGEN GAS (N2)
We offer compressed nitrogen gas and liquid nitrogen (N2) in a variety of purities and concentrations. See the chart below and download MSDSs for more information on buying liquid nitrogen and nitrogen gas from Praxair.
| PRODUCT NAME | CONCENTRATION | MSDS |
| Compressed Nitrogen Gas (N2) | High Purity > 99.9999% Low Purity > 90% |
Nitrogen Medipure Extendapak Gas N2 Safety Data Sheet SDS P4631 |
| Refrigerated Liquid Nitrogen (N2) | > 99.998% | Liquid Nitrogen Medipure Gas N2 Safety Data Sheet SDS P4630 |
| Nitrogen Gas Argon Mixture | 1 ppm – 99.99% | |
| Nitrogen Gas Helium Mixture | 1 ppm – 99.99% | |
| Nitrogen Gas Hydrogen Mixture | 1 ppm – 99.99% | |
| Nitrogen Gas Oxygen Mixture | 1 ppm – 99.99% |
At Praxair, we develop the right grades for the right applications. Give us a call and we'll help you determine the best supply option for your operations.
USES AND APPLICATIONS OF NITROGEN GAS AND LIQUID NITROGEN BY INDUSTRY
Aerospace & Aircraft
Essential to the aerospace & aircraft industry, nitrogen is used in high Reynolds number wind tunnels, heat treating furnaces and autoclaves to help create incredibly strong but lightweight materials. Nitrogen is also used as an assist gas for laser cutting applications.
Automotive & Transportation Equipment
Assembly plants, tier 1s and tier 2s use nitrogen in combination with other welding gases to weld auto parts, frames, mufflers and other components because of its ability to provide the necessary atmosphere needed to produce adequate welds with any material. It’s also an important safety component in airbags.
Heat Treating
Parts Manufacturing
Chemicals
Used as a pressurizing gas, nitrogen can help propel liquids through pipelines. It is also used to shield oxygen-sensitive materials from the air and to remove volatile organic chemicals from process streams.
Inerting
Nitrogen Stripping & Recovery
Reactor Cooling
VOC Treatment & Recovery
Energy
As an inert industrial gas, nitrogen is used as a blanketing agent to separate sensitive products and processes from air. It is also used as a purging agent in piping and equipment to prevent contamination.
Food & Beverage
Nitrogen is a key cryogenic agent in cooling, chilling and food freezing. Because of its extremely cold temperatures, immersion freezing in liquid nitrogen is the fastest freezing method known for producing Individually Quick Frozen (IQF) foods. Nitrogen also plays a key role in reducing spoilage, discoloration and off–flavors, giving strength to retail packaging.
Healthcare
Nitrogen NF is used as a cryogen to freeze and preserve blood, tissue, and other biological specimens, and to freeze and destroy diseased tissue in cryosurgery and dermatology. It is also used to power medical devices.
Medical Laboratory
Minimally Invasive Cryotherapy
Tissue Transport & Blood Platelet Preservation
Metal Production
A carrier and purge gas in steel production, nitrogen is used to prevent oxidation and is a key component in the heat-treating process.
Oil & Gas
The oil and natural gas industry utilizes nitrogen to increase reservoir reserves and fracture hydrocarbon-bearing formations to significantly increase the production of oil and gas, and to improve operating efficiency.
Pharmaceutical & Biotechnology
Gaseous nitrogen is commonly used for purging, pressure transferring, mixing and blanketing — protecting a process from moisture intrusion, oxidation, degradation and contamination. Cryogenic liquid nitrogen is used to control the temperature in reactor cooling applications and to preserve biological samples.
Reactor Cooling
Lyophilization
ControLyo™ Nucleation on Demand
VOC Treatment & Recovery
Refining
An industrial gas used to blanket storage tanks and purge pipelines, nitrogen can also strip Volatile Organic Compounds (VOCs) from chemical process streams and wastewater, and reduce VOC emissions.
Welding & Metal Fabrication
In stainless steel tube welding, nitrogen is used as a purge gas. It is also used as an assist gas for laser cutting, and enhances plasma cutting.
Explore other industries that use this gas.
