Ammonium Nitrate Overview Ammonium nitrate (uh-MOH-ni-um NYE-trate) is a white crystalline substance first made artificially in 1659 by the German chemist Johann Rudolf Glauber (1604–1670). The compound does not occur in nature because it is so...

The chemical compound ammonium nitrate, the nitrate of ammonia with the chemical formula NH4NO3, is a white powder at room temperature and standard pressure. It is commonly used in agriculture as a high-nitrogen fertilizer, and it has also been used as...

The House voted Tuesday to require the registration of sales and purchases of ammonium nitrate fertilizer, which has been converted into the explosive of choice for terrorists ranging from the Oklahoma City federal building in 1995 to the 2002 attack on a nightclub in Bali,...

A truck carrying ammonium nitrate to a mine caught fire after a highway crash and blew up, killing at least 34 people and injuring some 150, state and federal officials reported Monday.Authorities said two trucks smashed into each other Sunday night on a busy highway...

A truck carrying ammonium nitrate to a mine caught fire after a highway crash and blew up, killing at least 28 people and injuring some 150, state and federal officials reported Monday.Authorities said two trucks smashed into each other Sunday night on a busy highway...

The average chicken farmer does not have enough chemicals to make his farm a terrorist target, but many fertilizer wholesalers and paper mills do — and they'll have to tell the government about it as part of new anti-terrorism measures.On Friday, the Homeland Security Department...