What is ammonium nitrate, which caused the massive explosion in Beirut?

The catastrophic explosion at Beirut port on August 4 was caused by over 2,700 tonnes of ammonium nitrate kept in storage for over six years. What is it? In its pure form, ammonium nitrate (NH4NO3) is a white, crystalline chemical which is soluble in water. Prelims Link: What is Ammonium Nitrate and Where is it used? How is it regulated in India? … Read more