Platinum-rhodium alloy gauze serves as a catalyst in the oxidation of the ammonia from the Haber Process by atmospheric oxygen to produce nitric oxide and subsequently nitric acid, which is used for producing nitrogen fertilizers, ammonium nitrate, adipic acid, and toluene diisocyanate (precursor for polyurethane). It has high degree of chemical inertness and stability at very high temperatures.

This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.