An ammonium nitrate explosion produces massive amounts of nitrogen oxides. Nitrogen dioxide (NO₂) is a red, bad-smelling gas. Images from Beirut reveal a distinct reddish colour to the plume of ...

Ammonium nitrate train wreck in Buffalo County posed no explosion risk. Learn about its history and how it's used.

Many chemists on Twitter identified that color as being a signature of NO 2 gas, possibly produced from the incomplete decomposition of ammonium nitrate. Others also used the video footage to ...

The chemical, ammonium nitrate, is relatively harmless by itself but has caused deadly explosions in industrial accidents and has been used in targeted attacks. By Amanda Holpuch and Joshua ...