Anhydrous Ammonia

Anhydrous ammonia — pure NH₃ without water — is one of the most widely traded nitrogen-source chemicals globally, serving as a direct-application fertilizer, a refrigerant, and a feedstock for explosives, plastics, and synthetic fibers. Entered under a single 10-digit line (2814100000), it is subject to EPA Risk Management Program requirements given its acute inhalation hazard, and large-volume shipments typically move by pressurized rail or pipeline. Canada and Trinidad and Tobago are the leading suppliers to the US, with Qatar and Egypt also significant sources reflecting natural-gas-rich production regions.