What is ammonium nitrate, and how did it cause such a devastating explosion in Beirut?

What is ammonium nitrate, and how did it cause such a devastating explosion in Beirut?

The chemical compound ammonium nitrate is believed to have been the cause of the devastating explosion in Beirut on Tuesday. But how can such a chemical cause such a massive and destructive blast?

https://ift.tt/3kkJN78