You are separating anthracene from benzoic acid via an extraction between ethyl acetate and a basic aqueous solution in a separatory funnel. How would you recover the benzoic acid?.



Answer :

Collect the top layer and add HCl to precipitate the compound. This is because the HCl is an acid and like dissolves like so it will grab onto the anthracene.

An example of a liquid-liquid extraction is an acid-base extraction. Different solubility levels in water and an organic solvent are frequently used. Any carbon-based liquid that does not dissolve well in water may be used as an organic solvent; examples include ether, ethyl acetate, and dichloromethane.

According to their acid-base characteristics, organic molecules are often separated from one another via acid-base extraction. The approach is predicated on the notion that most organic compounds are more soluble in organic solvents than in water. The organic component is more soluble in water than in the organic solvent, though, if it is made ionic. These substances are easily converted into ions by either adding a proton (creating an H+ ion), converting the substance into a positive ion, or both.

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