Absorption (chemistry)
= Absorption
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<Absorption (chemistry)> takes a <chemical substance> into a material's bulk, as when <carbon dioxide> dissolves in <water>. <Adsorption> instead concerns accumulation at a boundary. Bulk uptake and interfacial accumulation can coexist; total uptake alone does not separate their contributions. This use of absorption concerns material uptake, whereas <absorbance> describes attenuation of <electromagnetic radiation>.