Solvent Extraction of Mercury Complexes with Diisopropylaminoethanethiol and Other Substances Accompanying Agent VX

The distribution of 2-diisopropylaminoethanethiol (RSH) between aqueous phase containing picric acid at various pH values (ionic strength 0.1) and toluene as the organic phase was investigated. The protonation constant of the reagent is K a = 10 6.27 . The constants characterizing the formation of the ion-associate with the picrate anion were also determined. The distribution of mercury was also examined between solutions of RSH and its derivatives in low-polar organic solvents and aqueous phases containing mineral acids and/or their sodium salts. The composition of the extractable chelating complexes formed in neutral and alkaline aqueous phases is Hg : reagent = 1 : 3.