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     Mansoura National University
            Pharm D-Clinical Pharmacy Program                 Level 1             Pharm. Anal. Chem. 1 (PC 101)
                                  ➢  Unsaturated solution:  A solution that can dissolve a further amount
                                      of solute at a particular temperature.
                                  ➢  Saturated  solution:    A  solution  which  cannot  dissolve  a  further
               Solution
              Saturation              amount of solute at a particular temperature.
                                  ➢  Supersaturated solution: A solution that contains more amount of
                                      solute than required to saturate it at a particular temperature.
               N.B.
               - Supersaturated solutions are unstable and release their extra-solid reaching the
               point of saturation when:
                       I. A tiny crystal (seed) of a solid is added, and additional solute crystallizes
                       on this "seed" crystal.
                       II. Further cooling of the supersaturated solution.
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