What is filtration?

Question

What is filtration?

Answer 1

Filtration is a technique used either to remove impurities from an organic solution or to isolate an organic solid. The two types of filtration commonly used in organic chemistry laboratories are gravity filtration and vacuum or suction filtration.

Answer 2

It 's like this:

you make a solution of Ca(OH)2 by adding it with water.

Most of the time, you will see that there are some white solid left in the solution (cause it don't dissolve much).

You then FILTER it (FILTRATION) and take the transparent (mostly) liquid, leave the solid behind

Answer 3

Filtration is a mechanical or physical operation which is used for the separation of solids from fluids (liquids or gases) by interposing a medium to fluid flow through which the fluid can pass, but the solids (or at least part of the solids) in the fluid are retained. It has to be emphasized that the separation is NOT complete, and it will depend on the pore size and the thickness of the medium as well as the mechanisms that occur during filtration.

    * Filtration is used for the purification of fluids: for instance separating dust from the atmosphere to clean ambient air.

    * Filtration, as a physical operation is very important in chemistry for the separation of materials of different chemical composition in solution (or solids which can be dissolved) by first using a reagent to precipitate one of the materials and then use a filter to separate the solid from the other material(s).