title: Complex formation equilibria between 1-hydroxy-7-sulpho-2-naphthoic or 1-hydroxy-4,7-disulpho-2-naphthoic acid and iron(III) in 0.1M NaClO4 medium.
abstract: The equilibria for formation of iron(III) complexes with 1-hydroxy-7-sulpho-2-naphthoic and 1-hydroxy-4,7-disulpho-2-naphthoic acids in aqueous 0.1M sodium perchlorate medium at 25 degrees have been studied by spectrophotometric and potentiometric methods. The data are well described in terms of a series of stepwise complexes, FeL((3-rn)+)(r) in both systems (L(n-) denotes the unprotonated ligand anion).
authors.affiliation: Department of Chemistry, University of Oulu, Linnanmaa, SF-90570 Oulu 57, Finland.
authors.forename: L H
authors.initials: LH
authors.lastname: Lajunen
authors.forename: E
authors.initials: E
authors.lastname: Aitta
authors.forename: S
authors.initials: S
authors.lastname: Parhi