Nitrogen Dioxide Supplier to St. Louis This brownish, poisionous, corrosive, liquefied PurityPlus® gas does have its uses, commercially, and Cee Kay Supply, Inc. makes it readily available to St. Louis businesses. Nitrogen Dioxide (NO₂) is produced as an atmospheric contaminant by the combustion of fossil fuels in excess oxygen; at flame-inducing temperatures, the oxygen not set ablaze with the fuel reacts with the nitrogen from the air to produce nitric oxide (NO) and, with increased oxygen and heat, is further oxidized to NO₂. For commercial use, Nitrogen Dioxide is achieved via the oxidation of ammonia at carefully regulated temperatures in a steam-rich environment. Nitrogen Dioxide’s most frequent use is in rocket motors, more properly in its dimerized state as N₂O₄ (Nitrogen Tetroxide, NOM 4). In this form, it is reacted with hydrazine to provide propulsion. These liquefied gases offer the advantage of long-term storage in space without excessive venting from boil-off, as neither are cryogenic fluids. They are used in positioning motors in orbiting satellites that might need to be relocated at some future date. NO₂ is also used as an oxidizing agent in organic synthesis and in select applications as a sterilizing atmosphere. Used as a specialty gas, NO₂ is frequently an element in calibration gases for environmental emission and industrial hygiene oversight. Have questions about PurityPlus® Nitrogen Dioxide or its uses? The respected professionals at Cee Kay Supply, Inc. are at your service. Call us here in St. Louis at 314.644.3500. Or contact us online for this or any specialty gas you require.