That method continues today, with potassium chloride as the most-used salt, or by the reaction of ammonium nitrate with potassium hydroxide or chloride. Early uses of KNO 3 included an oxidant in ...

There are many useful synthetic fertilisers containing nitrogen, phosphorus and potassium. (NPK Fertilisers). Fertilisers containing nitrate ions (NO 3-) not only contain an essential nutrient ...