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Reference.org
Solubility equilibrium
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<p>Solubility equilibrium is a type of <a href="/facts/Dynamic_equilibrium/jKq8wjyu">dynamic equilibrium</a> that exists when a <a href="/facts/Chemical_compound/37FXqqtv">chemical compound</a> in the solid state is in <a href="/facts/Chemical_equilibrium/y8ToYXHp">chemical equilibrium</a> with a <a href="/facts/Solution_(chemistry)/MGchhMQV">solution</a> of that compound. The solid may dissolve unchanged, with dissociation, or with chemical reaction with another constituent of the solution, such as acid or alkali. Each solubility equilibrium is characterized by a temperature-dependent <i>solubility product</i> which functions like an <a href="/facts/Equilibrium_constant/yMTuuBbX">equilibrium constant</a>. Solubility equilibria are important in pharmaceutical, environmental and many other scenarios. </p>