noun[mass noun] Chemistry
A white crystalline solid used as a fertilizer and as a component of some explosives.
- Chemical formula: NH4NO3
- In that investigation detectives arrested eight suspects across southern England and seized half a ton of ammonium nitrate, a chemical fertiliser used in many bomb attacks.
- Therefore, ammonium nitrate is the preferred nitrogen fertilizer for topdressing where incorporation is impossible.
- One popular explosive for industrial use is made from fertilizers like ammonium nitrate or urea, fuel oil, and nitric or sulfuric acid.
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