A supersaturated solution is a solution which contains more Soluté that it cannot normally dissolve. These solutions are Métastable S and the aqueous solution in supersaturation precipitates with the least disturbance. One produces these solutions while exploiting the variation of the Solubilité according to the temperature: In general solubility increases with the temperature. To obtain a solution on saturated, solvent is heated, one dissolves the maximum of aqueous solution and one lets the solution cool most slowly possible. The addition of a crystal germ of aqueous solution to a supersaturated solution involves the growth of this one and that can be a way of obtaining crystals of good quality.
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