Solubility Curves

Saturated solutions Solutions in which additional solute cannot dissolve and excess solute will precipitate. Maximum amount of dissolved solute at a given temperature and pressure. Unsaturated solutions Solutions that are not yet saturated, i.e. the solvent can still dissolve a further amount of solute. Supersaturated solutions: Sometimes, under special circumstances, a solvent can dissolve more than its maximum amount This can be achieved by heating a solution, saturating it at a higher temperature, then allowing it to cool Unstable solutions, any disturbance will usually cause rapid precipitation of the excess solute

A solubility curve is a plot of solubility versus temperature. The line represents a saturated solution. Points below the line represent unsaturated solutions. Points above the line represent a supersaturated solution.

Solubility Curve for Ionic Compounds

Solubility Curve for Gases