On the extraction method of ethyl acetate as a good extractant, if you want to get a good solvent, there must be several good ones. Ethyl acetate is a good choice for extraction, and there are three reasons.

The first is solubility. Ethyl acetate has moderate polarity and has good solubility in many organic compounds, such as alkaloids, flavonoids, and terpenoids. Covered with the principle of similar miscibility, most of these organic compounds have certain hydrophobicity. The structure of ethyl acetate contains ester groups, and the carbon chain part is hydrophobic, which can attract with Van der Waals force between organic molecules, so it can be dissolved. Therefore, when extracting organic components from the mixture, ethyl acetate has significant effect.

The second is insolubility with water. Extraction often requires the aqueous phase as the base, and the mutual solubility of ethyl acetate and water is extremely low, and the two can be quickly layered after mixing. This property is convenient for separating the organic phase (containing ethyl acetate and the extracted product) from the aqueous phase after extraction, easy to operate, and can effectively reduce the loss of the extracted product in the aqueous phase, improve the extraction efficiency and purity.

Furthermore, the volatility of ethyl acetate. Its boiling point is moderate, about 77 ° C. After extraction, in order to obtain a pure extract, it is often necessary to remove the solvent. Because ethyl acetate is volatile, it can be easily removed by distillation and other methods, and it can be realized at a lower temperature. The extracted product will not decompose or deteriorate due to high temperature, ensuring the activity and structural integrity of the extracted components.

In summary, ethyl acetate has many advantages in the extraction process due to its solubility, insolubility with water, and suitable volatility. Therefore, it is a good extraction solvent and is commonly used in many chemical experiments and industrial production.