Ammonium nitrate is a white crystalline chemical compound composed of ammonium and nitrate ions. It functions primarily as a high-nitrogen fertilizer and is widely used in agriculture to enhance soil fertility and support crop yields. The compound dissolves readily in water, releasing nitrogen in forms accessible to plants, making it valuable for cereal, vegetable, and fruit production.

Beyond agricultural applications, ammonium nitrate serves industrial purposes as an oxidizing agent in explosives and blasting agents for mining, quarrying, and construction. Its dual-use nature has prompted strict regulatory oversight in many countries to mitigate risks related to misuse, accidental detonation, and improper storage.