Gunpowder | Military Wiki | Fandom
Black powder for muzzleloading rifles and pistols in FFFG granulation size. Coin (diameter 24 mm) for comparison.. Gunpowder, or (Gunpowder) also known since the late 19th century as black powder, was the first chemical explosive and the only one known until the is a mixture of sulfur, charcoal, and potassium nitrate (saltpeter)—with the sulfur and charcoal .