What is ammonium nitrate, the chemical fertiliser blamed for the Beirut explosion?
FirstpostThe Beirut blast was one of the largest non-nuclear explosions in recent history, according to Brian Castner, lead weapons investigator for Amnesty International’s Crisis Response Team Lebanese officials say that thousands of tonnes of ammonium nitrate stored in a warehouse at the port in Beirut caused the powerful explosion that devastated the city on Tuesday, killing more than 130 people, injuring at least 4,000 and displacing 300,000 from their homes. According to the Lebanese government, around 2,750 tonnes of ammonium nitrate fertiliser was stored in a warehouse on the Beirut waterfront and caught fire, later exploding. In 1947, an explosion in Texas City, Texas, killed at least 581 people and wounded 3,500 after two cargo ships carrying ammonium nitrate caught fire. “The human impact of it is the important thing, and it affected people a dozen kilometers away.” While it is difficult to precisely calibrate the force of the Beirut explosion, the US military offers a formula that allows bomb technicians a quick way to calculate the power of a blast with just paper and pencil, by converting the weight of a known quantity of explosives to that of TNT.