Editing Solvation (section)

== Distinction from solubility ==
By an [[International Union of Pure and Applied Chemistry|IUPAC]] definition,<ref>{{GoldBookRef|title=solvation|file=S05747}}</ref> solvation is an interaction of a solute with the [[solvent]], which leads to stabilization of the solute species in the [[Solution (chemistry)|solution]]. In the solvated state, an ion or molecule in a solution is surrounded or [[Complex (chemistry)|complexed]] by solvent molecules. Solvated species can often be described by [[coordination number]], and the complex [[Equilibrium constant|stability constants]]. The concept of the solvation interaction can also be applied to an insoluble material, for example, solvation of functional groups on a surface of [[ion-exchange resin]].

Solvation is, in concept, distinct from [[solubility]]. Solvation or dissolution is a [[Chemical kinetics|kinetic]] process and is quantified by its rate. Solubility quantifies the [[dynamic equilibrium]] state achieved when the rate of dissolution equals the rate of [[Precipitation (chemistry)|precipitation]]. The consideration of the units makes the distinction clearer. The typical unit for dissolution rate is mol/s. The units for solubility express a concentration: mass per volume (mg/mL), molarity (mol/L), etc.{{citation needed|date=August 2022}}