To extract aniline (C6H5NH2) from a solution of chloroform, what would you use?
To extract aniline (C6H5NH2) from a solution of chloroform, you could use a separatory funnel.
Here's how you can proceed with the extraction:
1. Set up a separatory funnel and add the chloroform solution containing aniline to it.
2. Add a suitable extracting solvent, such as water or dilute hydrochloric acid, to the separatory funnel. Aniline is more soluble in the aqueous phase than in the organic phase (chloroform).
3. Close the funnel and shake it gently to allow the two phases to mix thoroughly.
4. Let the mixture settle, enabling the formation of two distinct layers - an organic (bottom) layer consisting of chloroform and an aqueous (top) layer containing aniline.
5. Carefully open the stopcock at the bottom of the separatory funnel and allow the organic layer (chloroform) to separate from the aqueous layer.
6. Collect the aqueous layer from the top of the separatory funnel containing the extracted aniline.
7. If necessary, you can repeat the extraction process by adding fresh extracting solvent to the separatory funnel and shaking it again to further enhance the aniline extraction.
8. Finally, the extracted aniline can be recovered by evaporating the solvent from the collected aqueous layer using techniques like distillation or rotary evaporation.