title: Analytical applications of mixed ligand extraction equilibria Nickel-ditbizone-phenanthroline complex.
abstract: The mixed ligand nickel-dithizone-phenanthroline complex provides a sensitive method for determination of nickel and also permits evaluation of the extraction constant for nickel dithizonate. The value log K(ex) = -0.7 was obtained, in agreement with a value of -0.2 obtained by others, and in contrast to an earlier value of -2.9. The addition of phenanthroline substantially increases the rate of extraction.
authors.affiliation: Department of Chemistry University of Arizona Tucson, Arizona 85721, U.S.A.
authors.forename: B S
authors.initials: BS
authors.lastname: Freiser
authors.forename: H
authors.initials: H
authors.lastname: Freiser