Solvation of molecules and linear algebra of extraction constants

The ordered table of logarithms of coordination extraction constants, the lines of which correspond with different extractants and the columns - various dissolvents is supposed to be called extraction matrix parallel lg K parallel and considered as an independent ob ect for investigation. Matrices of parallel lg K/Ksub(CClsub(4)) parallel type are oversolvation matrices and can be presented in the form of difference of oversolvation matrices of extractant and extractable complex. It is shown that oversolvation energies of different extractable complexes are proportional to the number of CH2 groups in a molecule. Proceeding from the solvation additivity rule the oversolvation matrix for extraction processes by Rsub(n)XO-type extractant may be also represented in the form of difference of oversolvation matrices of functional groups XO and nonhydrocarbon part (mostly anions) of the extractable complex. As the second component because of its insignificance usually meay be neglected, oversolvation matrices for various systems turn to be proportional to each other, the proportionality coefficient being equal to the relation of solvate numbers. Consequences of proportionality rule of oversolvation matrices are considered. To verify theoretical equations the data on extraction constants of UO2(NO3)2L2, CoCl2L2, Th(NO3)4L3, Th(NO3)4L2, HNO3L(L=TBP), DOSO, 2-nonyl pyridine-N-oxide, triisoamylphosphinoxide in the systems with various solvents are used