title: Potentiometric study of complex formation equilibria of alpha-oxooximes with copper(II) and nickel(II) and ions.
abstract: Complex formation equilibria between copper(II) and nickel(II) with phenylglyoxal 2-oxime (HPGO) and 1-phenyl-1,2-propanedione 2-oxime (HPPO) have been studied in 50% (v/v) ethanol-water solution containing 0.5M sodium nitrate as constant ionic medium at 25 degrees , using glass electrode potentiometry. The emf data obtained have been analysed with MINIGLASS and SUPERQUAD programs. Formation constants for the Cu(PGO)(+), Cu(2)(PGO)(OH)(2+), Cu(2)(PGO)(2)(OH)(+), Ni(PGO)(+), Ni(2)(PGO)(3)(+), Ni(2)(PGO)(4), Ni(2)(PGO)(2)(OH)(2), Cu(2)(PPO)(OH)(+) and Cu(2)(PPO)(2)(OH)(+) complexes are reported.
authors.affiliation: Departament de Química Analitica, Universitat de Barcelona, Barcelona, Spain.
authors.forename: A
authors.initials: A
authors.lastname: Izquierdo
authors.forename: M
authors.initials: M
authors.lastname: Granados
authors.forename: J L
authors.initials: JL
authors.lastname: Beltran