Why is black powder no longer allowed in underground coal mines in many countries?

Black powder is prohibited in underground coal mines in most countries primarily due to its extreme volatility in hazardous environments. While it was historically favored for its gentle, heaving action that produced high-quality lump coal, it possesses a dangerous tendency to ignite coal gas—specifically methane—and airborne coal dust.1

These ignitions frequently resulted in catastrophic mine explosions. Consequently, beginning in the late 19th century, governments in Europe and the United States established testing stations to identify safer alternatives. This led to the development and adoption of specialized dynamites designed to be safer for use in gassy and dusty conditions. Although these modern explosives may not match the specific blasting performance of black powder, their superior safety profile is essential for protecting human life in mining operations.1