White Phosphorus

White phosphorus is a highly reactive chemical substance known for its waxy appearance and yellowish color. It ignites easily in air, producing a distinctive, bright flame and dense white smoke. Commonly used in military applications, it serves as a marker and in incendiary devices. In everyday life, it's found in some pesticides and matches. However, it poses serious health hazards: exposure can cause severe burns, and inhaling its fumes can damage the lungs. Due to its risks and environmental impact, its use is heavily regulated in many countries.