Coal dust explosion demonstration

Coal dust is a fine powdered form of coal that can be hazardous if it is suspended in air outside a controlled environment. Coal dust suspended in air is explosive, has far more surface area per unit weight than lumps of coal, and is more susceptible to spontaneous combustion. Coal dust explosions can be catastrophic.
During the NSW Resources Regulator’s roadway dust course, held at the Mine Safety Technology Centre, Thornton, Senior Mine Safety Officer, Tim O'Reilly demonstrates the explosive nature of coal dust, as shown in this video.
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