We offer compressed nitrogen gas and liquid nitrogen (N2) in a variety of purities and concentrations. See the chart below and download the spec sheets and safety data sheets for more information on buying liquid nitrogen and nitrogen gas from Praxair.
|Product Name||Concentration||Safety Data Sheet||Spec Sheet|
|Compressed Nitrogen Gas (N2)||High Purity > 99.998%
Low Purity > 90%
|Refrigerated Liquid Nitrogen (N2)||> 99.998%|
|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.
BUY LIQUID NITROGEN OR PURCHASE COMPRESSED NITROGEN GAS (N2)
Uses and Applications of Nitrogen Gas and Liquid Nitrogen by Industry
Nitrogen is used to prevent oxidation of the metal during the 3-D printing process. Nitrogen has the advantage of being lower cost than other alternatives and is suitable for processing less reactive materials. Nitrogen can also be used as part of recycle loop for more expensive gases such as argon or helium.
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.
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.
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.
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.
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.