SOLVENT-EXTRACTION OF MERCURY COMPLEXES WITH DIISOPROPYLAMINOETHANETHIOL AND OTHER SUBSTANCES ACCOMPANYING AGENT-VX

The distribution of 2-diisopropylaminoethanethiol (RSH) between aqueou s 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 d etermined. The distribution of mercury was also examined between solut ions of RSH and its derivatives in low-polar organic solvents and aque ous phases containing mineral acids and/or their sodium salts. The com position of the extractable chelating complexes formed in neutral and alkaline aqueous phases is Hg : reagent = 1 : 3.