As with metal ores, it is useful to be able to calculate exactly what proportion the essential nutrients accounts for in a fertiliser. Ammonium nitrate (NH 4 NO 3) is commonly used as a fertiliser.

Nitrate fertilisers can be made through neutralisation reactions. To complete this, a supply of nitric acid is required. Nitric acid is then used to make ammonium nitrate which is high in nitrogen.

“The investigations are expanding daily and new secrets about the ammonium nitrate scandals and its repercussions are being exposed, which puts senior Syrian, Lebanese and Iranian officials in ...