What is the technique used to remove solid particles from liquid?

The technique used to remove solid particles from liquids is filtration. This process involves passing the liquid through a filter, which is a porous material designed to allow the liquid to pass while trapping the solid particles. It is commonly used in various contexts, such as in laboratories for purifying solutions or in cooking for straining sauces and broths.

Filtration works based on size exclusion, where the solid particles are larger than the openings in the filter material, allowing only the liquid to flow through while retaining the solids. This method is particularly effective for separating mixtures where a clear liquid is desired without any suspended solids.

Other techniques, such as distillation, extraction, and evaporation, serve different purposes. Distillation is used for separating components based on differences in boiling points, extraction focuses on isolating specific compounds from a mixture, and evaporation is a process used to remove a liquid from a solution to leave the solute behind. Each of these techniques has its own unique applications but is not specifically focused on just removing solid particles from a liquid like filtration does.