Ammoniac -

: Most modern ammonia is synthesized via the Haber-Bosch process , which combines atmospheric nitrogen with hydrogen under high pressure and temperature using an iron catalyst. Major Uses

: Ammonia is highly toxic to fish and other aquatic organisms, often resulting from agricultural runoff or bacterial decomposition in sediments.

: Due to its high heat absorption capacity, ammonia is widely used as a coolant in large-scale industrial refrigeration and cold storage systems. Emerging Role as a "Green" Fuel

: Household ammonia is a dilute solution used as an effective degreaser and glass cleaner.