Solvent-motivated sorption

Hydrophobic Effect. The partitioning of a substance from an aqueous phase into (or onto) another phase due to its hydrophobicity. Often characterized by an octanol-water partitioning coefficient. See also Solvent-Motivated Sorption. 

Octanol-Water Partition Coefficient. The partitioning coefficient of a compound between octanol and water, that is, between specific nonpolar and polar phases. Used as an indication of the tendency of a compound to partition between oil and water phases. A variety of empirical equations estimate such partitioning of a compound on the basis of its octanol-water partition coefficient. See also Solvent-Motivated Sorption. 

Solvent-Motivated Sorption. Sorption that occurs as a result of the hydrophobicity of a compound. Accumulation of the compound at the interface or in the other phase is not due to its affinity for that phase so much as to its disaffmity for the initial phase. Such sorption occurs for organic contaminants in the environment. This kind of sorption can often be related to the octanol-water partitioning coefficient. 

Sorbent-Motivated Sorption. Sorption that occurs as a result of the affinity of the surface for a particular compound. Example ion exchange. See also Solvent-Motivated Sorption. 

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