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| | Notebook |
 | | Charcoal, being almost pure carbon, yields a lager amount of heat in proportion to its volume that is obtained from a corresponding quantity of wood; as a fuel it has the further advantage of being smokeless. |
 | | Charcoal is also obtained from substances other than wood; that obtained from bones is called bone fl, animal fl, or animal charcoal. |
 | | Because of its porous structure, finely divided charcoal is highly efficient agent for filtering the adsorption of gases and of solids from solution. |
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