Activated Charcoal 1
Activated Charcoal 1 : Medicine. A combustible form of carbon subject to spontaneous ignition; it has a high absorptivity for many gases, vapors, and colloidal solids, is made by the destructive distillation of wood, nut shells, animal bones, or other carbonaeceous material, and is activated by heating with steam or carbon dioxide, which results in its porous internal structure (honeycombed); it is used in filter-type respiratory equipment
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