Solvent Extraction of Several Trivalent Metal Ions with 4-Isopropyltropolone into Chloroform

摘要: The solvent extraction of lanthanum(III), praseodymium(III). neodymium(III), samarium(III), europium(III), gadolinium(III), thulium(III), ytterbium(III), lutetium(III), scandium(III), and indium(III) (M(III)) in 0. mol dm 3 sodium nitrate solutions with 4-isopropyltropolone (Hipt) into chloroform was studied. From the dependence on concentration 4-isopropyltropolonate anions aqueous phase also metal ions, it concluded that scandium(III) were always extracted mononuclear form, M(ipt) , But dinuclear lanthanoid(III) chelate complexes, M 2 (ipt) 6 nHipt where n=0 or 1, ones even when organic higher than about 10 -6 -3 . degree species formation greater following order: lutetium(III) to samarium(III)>neodymium(III)>praseodymium(III)>lanthanum(III) - indium(III). On other hand, stability self-adduct complexes lanthanum(III) gadolinium(III)>thulium( III)>ytterbium(III )>lutetium(III).