The ammonium nitrate formula, also known as the Ammoniumnitrit formula or Azanium nitrite formula is discussed in this article. It is not very stable so it is not used in its purest form. At room temperature, it decomposes into nitrogen and water. The molecular or chemical formula of Ammonium nitrate is NH4NO2. Ammonium nitrate occurs naturally in the air and can be absorbed by absorbing equal parts of nitric oxide and nitrogen dioxide from liquid ammonia. It can also be obtained by the oxidation of ammonia with hydrogen peroxide or ozone. Also, it can be produced by forming lead nitrate or barium containing ammonium sulfate, potassium nitrite containing ammonium perchlorate, or ammonium chloride containing silver nitrate. Stained rain is filtered. The crystals that occur are colorless and dissolve in water.