Nitric Acid, CP, 60%, 2.5L Nitric acid is used for the production of ammonium nitrate, a major component of fertilizers.It is also used for producing explosives like nitroglycerin and trinitrotoluene (TNT) and for oxidizing metalsNitric acid salts are used in agriculture, most of all in the form of ammonium nitrate produced by neutralizing nitric acid with ammonia.