Ammonia is the most commonly used in the agricultural sector as a crop fertilizer. Ammonia is also used in the manufacture of commercial explosives.
Ammonia causes immediate irritation of the nose and throat. Inhalation of higher concentrations can cause an accumulation of fluid in the lungs, obstructed airways and severe breathing difficulties.
|50 ppm||Mild irritation to eyes nose and throat|
|250 ppm||Rapid eye and throat irritation|
|700 ppm||Immediately irritating to eyes and throat|
|1500 ppm||Accumulation of fluid in the lungs, severe coughing, breathing difficulties|
|2500 -4500 ppm||Fatal after 30 minutes|
|5000 - 1000 ppm||Respiratory failure - rapidly fatal|
Employees who work with anhydrous ammonia must be provided with proper safety equipment:
|Health||3||Can cause serious or permanent injury.|
|Flammability||1||Must be preheated before ignition can occur.|
|Instability||0||Normally stable, even under fire conditions|