Ammonium Nitrate (NH4NO3)

Jaffry, Khizar

Ammonium Nitrate- The formula is known as NH4NO3. This is a ternary compound because it is made from more than 3 elements.

This compound is predominantly used in agriculture as a high-nitrogen fertilizer. This compound is used as explosives in mining, but also improvised explosive devices. It is the main component of ANFO, a popular explosive, which accounts for 80% explosives used in North America. It is used in instant cold packs, as hydrating the salt is an endothermic process.
http://en.wikipedia.org/wiki/Ammonium_nitrate