The relationship (algebraic or graphical) between the concentration of
a solute in an extract and the corresponding concentration of the same
solute in the other phase at equilibrium at a specified temperature.
Alternative terms in common use are equilibrium line and in the
appropriate context:
extraction isotherm,
scrubbing isotherm and
stripping isotherm.
Partition isotherm is not normal usage.
Source:
PAC, 1993, 65, 2373
(Nomenclature for liquid-liquid distribution (solvent extraction) (IUPAC Recommendations 1993))
on page 2377
