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Extraction in chemistry is a separation process consisting of the separation of a substance from a matrix. The distribution of a solute between two phases is an equilibrium condition described by partition theory.
Solvent extraction is one of the separation methods in which one component or solute present in one phase is extracted into another phase by using a suitable solvent. Thus, the process by which a solute is transformed from one phase to a new phase is known as extraction.
"Extraction" refers to transference of compound(s) from a solid or liquid into a different solvent or phase. In the chemistry lab, it is most common to use liquid-liquid extraction, a process that occurs in a separatory funnel.
Extraction #1. Perform a single extraction using approximately \(25 \: \text{mL}\) of diethyl ether (an exact amount is not necessary), as described previously, making sure to appropriately label each layer (e.g. "top organic layer" and "bottom aqueous layer"). Extraction #2. Return the aqueous layer to the separatory funnel. There is no need ...
There is a net transfer of one or more species from one liquid into another liquid phase, generally from aqueous to organic. The transfer is driven by chemical potential, i.e. once the transfer is complete, the overall system of chemical components that make up the solutes and the solvents are in a more stable configuration (lower free energy).
In its simplest theoretical aspect, an extraction process consists in promoting the mass transfer of molecules of interest from a solid phase (e.g., plant raw material) to a liquid phase called the solvent. During the extraction process, two different major steps can be identified.
Extraction. Extraction is a common technique used in organic chemistry to isolate a target compound. In the extraction process, a solute is transferred from one phase to another to separate it from unreacted starting materials or impurities.
