What does quenching mean in chemistry?

1.Extraction is the use of the different solubility of the components in the system in the solvent.

To separate the unit operation of the mixture, using the principle of similar dissolution, there are two ways of extraction:

Liquid-liquid extraction, the separation of a component of a liquid mixture with a selected solvent that is incompatible with the liquid of the extracted mixture, has selective solubility, and must have good thermal and chemical stability, as well as little toxicity and corrosiveness. For example, use benzene to separate coal tar.

phenols in the world; Olefins in petroleum fractions are separated with organic solvents.

Br2 in water was extracted with CCL4

Solid-liquid extraction, also known as leaching, uses solvents to separate components in a solid mixture, such as sugars in sugar beets with water; Soybeans are soaked in alcohol.

to increase oil production; Extracting the active ingredient from Chinese medicine with water to make a flow extract is called "leaching" or "leaching".

Although extraction is often used in chemical experiments, its operation does not cause a change in the chemical composition of the extracted substance (or chemical reaction, so the extraction operation is a physical process.

Extraction is one of the methods used in organic chemistry laboratories to purify and purify compounds. By extraction, the desired compound can be extracted from a mixture of solids or liquids.

2.Quenching is also quenching.

It is the name of the soil of the chemical industry, that is, our old experts called it), which means that the red-hot metal material is put into water, oil and other liquids to cool rapidly, so as to improve the hardness and strength of the material. It is also called dipping fire. I'm this professional so clear, rest assured!

By: Skeetoo - Wizard Level 5.

Extraction refers to the transfer of compounds from one solvent to another by using the difference in solubility or partition coefficient of a compound in two immiscible (or slightly soluble) solvents. This is a method in which most of the compounds are extracted after repeated extractions. Extraction, also known as solvent extraction or liquid-liquid extraction (to distinguish it from solid-liquid extraction, i.e., leaching), also known as extraction (commonly used in the petroleum refining industry), is a kind of mass transfer separation process that uses liquid extractants to treat immiscible two-component or multi-component solutions with them to achieve component separation, and is a widely used unit operation.

Using the principle of similarity dissolution, there are two ways of extraction:

I have a mission, please understand.

Common dictionary pronunciation: cuì

Metal materials, metal material processing, metal heat treatment and other academic fields and industries are pronounced: zhàn, such as: quenching (zhàn) fire, quenching (zhàn) hardness, quenching (zhàn) permeability, etc.

Basic explanation: Immerse a red-hot casting in water or oil or other liquids to increase the hardness and strength of the alloy: fire. Li. Urge.