ChemInform Abstract: Synthesis and Characterization of Antimony(III) Selenite and Antimony(III) Tungstate as Inorganic Ion Exchangers.
Abstract
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ChemInform Abstract
Two stable inorganic ion exchanger of composition Sb2O3×4SeO2×2H2O and Sb2O3×5WO3×4H2O are prepared by addition of aq. solutions of sodium selenite and sodium tungstate, resp., to an acidic solution of SbCl3 (pH 1). The effect of temperature on ion exchange capacity and of electrolyte concentration on distribution coefficients for some metal cations is studied. The materials are suitable for the separation of Pb(II), Hg(II), and Th(IV) from other metals in very low concentrations.
