Potassium nitrate is an inorganic compound with chemical formula of KNO3. It is a chlorine-free compound fertilizer with high solubility. Its effective components, nitrogen and potassium, can be quickly absorbed by crops without chemical residue. As a fertilizer, it is suitable for vegetables, fruits and flowers, and some chlorine-sensitive crops.

Main uses of potassium nitrate:

Potassium nitrate is the raw material for making black powder, such as mine powder, fuse and firecrackers. It is also used in fireworks to produce purple sparks. Mechanical heat treatment as a salt bath for quenching.

The ceramic industry is used to make enamel colored medicine. Used as glass fining agent. Used for manufacturing automobile lamp glass shell, optical glass kinescope glass shell, etc. It is reduced to potassium nitrite in meat products due to the action of bacteria to protect color and inhibit bacteria. Industrial potassium nitrate is also widely used in strengthening glass manufacturing process.

Reference to the above content? Baidu encyclopedia-kno 3