1978 Volume 27 Issue 7 Pages 454-457
Two component separations involving titanium (IV), zirconium (IV) iron (III), aluminum (III), gallium (III), indium (III), copper(II) and zinc (II) were carried out by using a column (i. d. 0.9 cm, height 10 cm) of Amberlite IR-120 {(60100) mesh} in the hydrogen form. 5 × 10-5 mol each of metallic element was loaded on to the top of the column. After washing the column the eluant was passed down the column at a flow rate of 0.5 cm3 min-1, and the metal in each fraction (10 cm3) of the effluent was determined chelatometrically after decomposition of the oxalato complex and excess oxalic acid with ammonium peroxodisulfate. Complete separations were achieved of titanium from aluminum, titanium from copper, zirconium from aluminum, iron from aluminum with 0.05 M oxalic acid-0.4 M hydrochloric acid, gallium from indium with 0.05 M oxalic acid-0.2 M hydrochloric acid, indium from zinc with 0.05 M oxalic acid-0.6 M hydrochloric acid, zirconium from titanium with 0.02 M oxalic acid-0. 12 M hydrochloric acid, zirconium from copper with 0.01 M oxalic acid-0.02 M hydrochloric acid, and zirconium from iron with 0.005 M oxalic acid-0.01 M hydrochloric acid.
