Solvent Extraction

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Also known as LIquid--liquid extraction

one component or solute present in one phase is extracted into another phase by using a suitable solvent

Useful for preparation, purification, and separation of chemical species.

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Based on Nernst Distribution law

Principle of solvent extraction

Solvent extraction equipment

separatory funnel

Do you familiar with these terms?

Distribution coefficient

Percentage extracted

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Common extracting solvent

Ether, chloroform, benzene, Carbontetrachloride

Applications

1.desilverization of lead

2. Monitoring of drinking water

3. Detection of organophosphorus pesticides in orange jouice

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