A supersaturated solution is a metastable solution whose concentration:
Under certain conditions, the equilibrium solubility can be exceeded to give a so-called supersaturated solution, which is metastable. Metastability of crystals can also lead to apparent differences in the amount of a chemical that dissolves depending on its crystalline form or particle size. A supersaturated solution generally crystallises when seed crystals are introduced and rapid equilibration occurs. Phenyl salicylate is one such simple observable substance when fully melted and then cooled below its fusion point.