Abstract

Abstract A solvent extraction system is used to determine metal distribution coefficient, D n+, values between water and toluene for the nitrate salts of K+M, Ag+, T1+, and Pb2+ using, both individually and together, the organic soluble complexing agents HDEHP and DC18C6 (Figure 1). Synergistic solvent extraction effects.are found for all of the metals examined. The extraction of Pb2+ is much greater than that of the monovalent cations. The extraction of K+ increases either as the equilibration temperature decreases or as the equilibrated aqueous pH increases. The extraction of Ag+ increases in a regular fashion until the initial concentration of DC18C6 in the toluene reaches the initial concentration of HDEHP+in the toluene. Beyond this point, no appreciable increase in Ag+ extraction is observed with increased initial DC18C6 concentration.

Full Text
Published version (Free)

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call