title: Complex formation between aluminium and 3-hydroxy-7-sulpho-2-naphthoic acid Potentiometric, absorption-spectrophotometric and spectrofluorometric studies in aqueous solution.
abstract: The formation of chelates between aluminium(III) and 3-hydroxy-7-sulpho-2-naphthoic acid has been studied in aqueous solutions of various ionic strengths, at 298 K. The stability constants of AlL, AlL(2) and AlL(3) and the protonation constants of the ligand, obtained by potentiometry with the glass electrode, are compared with values found by absorption and fluorescence spectrophotometric methods.
authors.affiliation: Department of Chemistry, University of Oulu, SF-90100 Oulu 10, Finland.
authors.forename: L H
authors.initials: LH
authors.lastname: Lajunen
authors.forename: R
authors.initials: R
authors.lastname: Petrola
authors.forename: P
authors.initials: P
authors.lastname: Schildt
authors.forename: O
authors.initials: O
authors.lastname: Korppi-Tommola
authors.forename: O
authors.initials: O
authors.lastname: Mäkitie