How can a platinum-rhodium catalyst be used to produce hydrocyanic acid?

A platinum-rhodium catalyst is used to produce hydrocyanic acid through the catalytic oxidation of a mixture containing ammonia and methane.12

In this industrial process, an alloy consisting of platinum and 10 percent rhodium is formed into a gauze. When this gauze is heated to a bright red heat, it facilitates the reaction between the ammonia and air to produce nitrogen oxides. By introducing methane into this ammonia-air mixture, the catalytic reaction is directed toward the production of hydrocyanic acid.1

It is important to handle these substances with extreme care, as hydrogen cyanide is a highly toxic and volatile substance that inhibits cellular oxidative processes in humans. Ethical standards in chemical manufacturing prioritize the rigorous containment and safe handling of such hazardous materials to protect workers and the environment from fatal exposure.2