Nitric Oxide Supplier to Indianapolis American Welding & Gas, Inc. is proud to make PurityPlus® Nitric Oxide (NO), a colorless, nonflammable but toxic oxidizing gas, available for commercial use in Indianapolis. Nitric Oxide is created as a pollutant through the combustion of fossil fuels that are close to excess oxygen. It is also produced by the direct reaction of atmospheric nitrogen to oxygen during electrical storms. For commercial use, all high-purity Nitric Oxide is produced by the oxidation of ammonia with a platinum catalyst and heat. Small amounts of NO can be generated in the laboratory by taking diluted nitric acid and reducing it with copper. The majority of the Nitric Oxide made is used as an intermediate in the manufacture of concentrated nitric acid. High-purity Nitric Oxide is used in calibration standards for environmental emission regulation, industrial hygiene monitors, and trace impurity analyzers. NO is also introduced into gas mixtures to treat pulmonary arterial hypertension and is finding increasing use as well in many pharmacological research applications in which vasodilation acts as a method of pain reduction. To get your hands on the best Nitric Oxide in Indianapolis, call American Welding & Gas, Inc. today at or contact us online for all your specialty gas needs.