White Phosphorus is a chemical substance that appears as a waxy, white solid. It is highly reactive and can ignite spontaneously in air, producing a bright flame and dense white smoke. Due to its flammability, it is often stored underwater or in inert gases to prevent accidental ignition. This compound is primarily used in military applications, such as in smoke screens and incendiary devices. Additionally, it has some industrial uses, including in the production of fertilizers and pesticides. However, its use is controversial due to its potential to cause severe burns and environmental damage.