activated char coal

activated carbon

noun Chemistry.
a form of carbon having very fine pores: used chiefly for adsorbing gases or solutes, as in various filter systems for purification, deodorization, and decolorization.
Also called activated charcoal.


Origin:
1920–25

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World English Dictionary
activated carbon
 
n
activated charcoal, Also called: active carbon a porous highly adsorptive form of carbon used to remove colour or impurities from liquids and gases, in the separation and extraction of chemical compounds, and in the recovery of solvents

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