Store bagged material in well ventilated areas keeping the stack at least 30 inches from the wall and 36 inches from the roof. Allow passages and ventilation between stacks. Do not weld or cut inside a building containing ammonium nitrate. In areas where dust will be generated respirators are required. Under normal conditions, dust and mist respirators must be equipped with efficient particulate filters.
Dust loading in the work area dictates the level of protection required.
Normal precautions should be taken when exposed to dust generated by these materials. Ammonium Nitrate is capable of undergoing detonation if heated under confinement, or is subjected to very strong shocks. Organic oxidizable matter can sensitize the material into a more readily explosive state. Thermal decomposition is normally rapid with the release of toxic and corrosive fumes of ammonia, oxides of nitrogen and nitric acid. Hazardous polymerization will not occur.