Department of Chemistry, Shivaji University, liolhapur-416 004 Manuscript received 30 August 1982, revised 15 March 1983, accepted 20 May 1983 The anion exchange characteristics of eight metal ions in aqueous-acetone-acetic acid media using Dowex 21-K in chloride form have been reported. The values of distribution coefficients have been evaluated. The synthetic binary and ternary mixtures were separated at suitable elution conditions.