Charcoal is a lightweight black substance produced by heating wood, peat, or other organic materials in the absence of oxygen. It is primarily composed of carbon and contains a small amount of ash.
Charcoal has been used for centuries as a fuel, an art medium, and a medicinal substance. It is an important component in the production of gunpowder, activated carbon, and carbon fiber. Charcoal is also used in water filtration, air purification, and soil remediation.