Separation of Ba(II) from Other Metal Ions on Dowex 50W-X8 Column in NH4F-HN03 Media

Chemical Laboratories, University of Allahabad, Allahabad-211 002
Manuscript received  24 May 1983, accepted 13 February 1984

Distribution coefficients (K) determined by batch technique in fixed (0.80 M) NH₄F-varyiog (1.0-4.0 M) HN0₂ media indicated the separation of Ba(II) from Mg(II), Ca(II), Sr(II), Hg(Il), Bi(Ill), Cr(III), Mn(II), Co(Il), Ni(ll), Co(II), Zn(II) and Cd(II). Actual separation was obtained in about 7·8 cm column of Dowex
50W-X8 (H⁺·form; 100-200 mesh) in 0.80 M NH₄F-1.0 M HN0₂ mixture. Distribution coefficients, elution curves and the results of various separations along with standard deviations are presented.