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The idea of leaching it is used in the field of chemistry . This is the name of act and the result of leaching : divide the soluble parts and the insoluble parts of a substance appealing to the use of a solvent .

Leaching is also known as solid-liquid extraction , since it consists in the use of a liquid solvent with a pulverized solid, a action which allows the dissolution of the soluble elements of the solid.

Through leaching, in short, it is possible extract solutes from a solid thanks to the use of a liquid solvent . When the phases they are contacted, solutes diffuse into the liquid, achieving separation.

Leaching is a process that develops in different contexts. Through it you can get sugar , dyes or oils , for example.

In the field of metallurgy , leaching allows the extraction of useful species from a mineral, using reagents that are responsible for its dissolution. He copper , the silver and the gold they are metals that are usually extracted by leaching, which can be carried out in different ways (by agitation, in batteries, in dumps, etc.).

The leaching concept is used in the ecology to refer to the sliding of pollutants and wastes towards the seas and rivers. Water is responsible for dragging these substances that can cause significant damage to the environment.

Similarly, the geology it uses the notion of leaching to name the washing of a geological layer or a stratum through the Water .

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