Cloze (1): JXUwMDE3JXUwMDNjJXUwMDA3JXUwMDAzJXUwMDE2JXUwMDBkJXUwMDA4 is the name of the process in which nitric (V) acid is manufactured in large scale. The conversion of Cloze (2): JXUwMDM5JXUwMDBjJXUwMDAwJXUwMDAyJXUwMDAxJXUwMDA3JXUwMDA4 into nitric (V) acid in this process is done through the following steps. Ammonia is first oxidized by air in the presence of Cloze (3): JXUwMDI4JXUwMDFjJXUwMDBkJXUwMDE1JXUwMDFkJXUwMDA3JXUwMDFiJXUwMDE4 catalyst at Cloze (4): JXUwMDYxJXUwMDA5JXUwMDAw °C to give nitrogen (II) oxide. The nitrogen (II) oxide is oxidised by air at temperature about 45°C, to give Cloze (5): JXUwMDM2JXUwMDA3JXUwMDFkJXUwMDA2JXUwMDFkJXUwMDA4JXUwMDAyJXUwMDBiJXUwMDRlJXUw MDA4JXUwMDYxJXUwMDFmJXUwMDdmJXUwMDA5JXUwMDRmJXUwMDE3JXUwMDExJXUwMDBkJXUwMDAx which is then converted to nitric (V) acid by Cloze (6): JXUwMDNjJXUwMDBkJXUwMDFhJXUwMDAwJXUwMDFjJXUwMDAzJXUwMDFhJXUwMDFmJXUwMDA3JXUw MDA5 it in water, in the presence of air.