Activated Carbon

Activated carbon, also called activated charcoal or activated coal, is a general term which covers carbon material mostly derived from charcoal. For all three variations of the name, "activated" is sometimes substituted by "active". By any name, it is a material with an exceptionally high surface area. Just one gram of activated carbon has a surface area of approximately 500 m2, typically determined by nitrogen gas adsorption, and includes a large amount of microporosity. Sufficient activation for useful applications may come solely from the high surface area, though often further chemical treatment is used to enhance the absorbing properties of the material.
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Activated charcoal is a fine black odorless and tasteless powder made from wood or other materials that have been [more]Activated carbon - Community and Resources

Noun
1. powdered or granular carbon used for purifying by adsorption; given orally (as a slurry) it is an antidote for some kinds of poisons
(synonym) activated charcoal
(hypernym) carbon, C, atomic number 6

A highly adsorbent form of carbon used to remove odors and toxic substances from liquid or gaseous emissions. In waste treatment, it is used to remove dissolved organic matter from waste drinking water. It is also used in motor vehicle evaporative control systems.

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A porous form of carbon that acts as a powerful adsorbent , used to decolorize liquids, recover solvents, and remove toxins from water and air.