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Nitrogen Dioxide

High-purity nitrogen dioxide

Air Liquide manufactures nitrogen dioxide as a pure gas with purity up to 99.995% or as part of specialty gas mixture that includes air or nitrogen. Nitrogen dioxide is used in many applications, primarily in environmental monitoring. Additionally, nitrogen dioxide in balances of air or nitrogen at various concentrations are used as span gas calibration mixtures for engine emissions testing in the automotive industry, designed specifically for industrial hygiene and safety and laboratory applications.

Air Liquide offers ScottTM brand nitrogen dioxide gas mixtures as EPA protocols and CEM DAILY STANDARDSTM. These mixtures are available in two-component and multi-component variation.


Related equipment

Air Liquide manufactures gas handling equipment designed to deliver nitrogen dioxide pure gas and gas mixtures safely to your point of use, including gas pressure regulators, gas manifolds and valves.

Related supply modes

Air Liquide packages nitrogen dioxide pure gases and gas mixtures in a variety of high-pressure compressed gas cylinders, including aluminum and carbon steel, depending on the grade of pure gas or mixture composition, and your application.