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Question In what situations would you use decantation instead of filtration to separate solids from liquids?
Decantation method is used when the insoluble solid particles are heavier and settle down at the bottom of the vessel. The liquid is separated from insoluble solids by pouring off the liquid while leaving the solid particles behind as a residue.
While filtration method is used when insoluble particles do not settle down and spreads throughout the solution.