Which method is used to separate soluble solids from liquids?

The most common method used to separate soluble solids from liquids is evaporation. This method works because the solid is dissolved in the liquid and cannot be separated by filtration.

In evaporation, the solution is heated so that the liquid changes into vapor and leaves behind the dissolved solid. For example, salt can be obtained from saltwater by evaporating the water.

In some cases, crystallization is also used when we want to obtain pure solid crystals from the solution.

In simple terms, evaporation removes the liquid part and leaves the dissolved solid behind.