ABSTRACT
Another agent used in a similar manner to ether is nitrous oxide. Known for its ability to induce lightheadedness and often inhaled by those seeking a thrill, it was not used as frequently as was ether because it was more difficult to prepare and store. Nitrous oxide was produced by heating ammonium nitrate in the presence of iron filings. The evolved gas was passed through water to eliminate toxic oxides of nitrogen before being stored.
