potassium nitrate to be purified. Put 500 ml of water in the 2 litre pot. Heat the pot containing the water over an electric or gas stove element and add approximately one half the potassium nitrate. Stir well to dissolve.
Potassium nitrate is a crystalline potassium salt of nitric acid. Many products use potassium nitrate in homes, agriculture and industry. Some examples include toothpaste, fertilizers, fireworks, pesticides and molten salt for solar power plants.
POTASSIUM NITRITE PURIFIED