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The addition of finely divided charcoal during the recrystallization of impure solids serves to adsorb colored impurities and other contaminants present in the solution. This process helps to clarify the solution, resulting in a purer product after crystallization. The charcoal can be removed by filtration before the final crystallization step, ensuring that the resulting crystals are free from discoloration and unwanted substances.

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1d ago

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For what purpose is charcoal used in recrystallization?

Activated carbon is also known as decolorizing carbon. It is used to remove the colored impurities from the sample. Activated carbon provides a high surface area to absorb colored impurities. http://designer-drugs.com/pte/12.162.180.114/dcd/chemistry/equipment/recrystallization.html


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