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The process of swelling, gelling, or dissolving of a material by a solvent; for resins, the solvent can be a plasticizer.



the association of molecules of a solvent with molecular, ionic, or particulate solute units. When the association involves water molecules, solvation is referred to as hydration.

Solvation results in the formation of solvates (hydrates), which are compounds of definite or, more often, indefinite composition. The molecules of the solvent are associated with the molecules or ions of the solvated substance through forces of various types and intensities, from weak forces of molecular interaction to the forces of chemical bonds. In solutions, the solvent molecules involved in solvation create spheres of solvation around the molecules or ions of solute.

A distinction is usually made between primary solvation, the interaction of molecules or ions of a substance with the closest molecules of solvent, and secondary solvation, the interaction of molecules or ions that have undergone primary solvation with more distant solvent molecules. When the solvation is complete, all the molecules of the solvent are associated with the spheres of solvation; that is, they enter the sphere of action of the force field of the molecules or ions of solute.

Solvation acts on the thermodynamic and other properties of the solution; it causes the electrolytic dissociation of electrolytes in polar solvents, the solubility of nonelectrolytes, and many liquid-phase chemical reactions. Solvation of molecules or ions of the surface layer is an extremely important factor in the stabilization of disperse systems having a high degree of dispersion in a liquid dispersion medium (sols, ladees, emulsions). Solvation may occur not only in a liquid solvent but also during the sorption by a substance of solvent vapors from a gaseous medium.


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References in periodicals archive ?
In addition, the removal of hydroxy-Al from HIV did not change its expandability after glycol solvation (Fig.
Universal solvation model based on solute electron density and on a continuum model of the solvent defined by the bulk dielectric constant and atomic surface tensions.
For a semi-quantitative estimation, the diffractograms corresponding to Mg-saturated glycerol solvation were fitted to a standard equation by using software Automated Powder Diffractometry (PANalytical, Spectris Technologies).
According to Kwon, M-Ink contains three ingredients: magnetic nanoparticles 100 to 200 nanometres across, a solvation liquid, and a resin.
The free energy of solvation also constitutes another problem for anion binding.
Nonetheless, it is unlikely that the presence of ions in the oceans will dramatically alter the conclusions reached herein, even though the presence of ions can produce small changes in the first solvation shell [17, 18].
Further, apparent molar compressibility, apparent molar volume and solvation number have been evaluated.
Kebarle's work from 1963 to this day created the field of gas phase acidity/basicity and allowed a step-by-step thermodynamic analysis of the process of ion solvation.
Alternatively, the extent of asphaltene solvation, as measured by [DELTA] H/C, in SCS may not be comparable to that found in the other crudes.
The separation mechanism in CE with IL ingredients has recently been studied very thoroughly with the help of powerful mathematical tools such as experimental design and linear solvation free energy formalism.