Potassium nitrate is white granular or white powder, which dissolves in water absolutely. It contains nitrogen and potassium, which can be absorbed by the plant directly , also help other elements to be absorbed quickly and completely. It can be used all kinds of crops , also be used in greenhouse and large-area farmland.it will burn and explode when mixing with organics. It is mainly applied in TV glass, glass refining agent and motor light glass， ceramic and enamel，cigarette paper，concentrating agent etc .