Abstract
Distribution coefficients of various elements with the strong acidic caion-exchanger, Dowex 50W-x8, 100∼200 mesh were investigated in various concentrations of succinic, hydrochloic acid and it's mixture. Based on these distribution coefficients,the experimental condition for their quantitative separation of those elements is established in 0.9 M hydrochloric acid as eluent, several examples of successful separations are described and the dependence of distribution coefficients on ionic radius is also discussed.
용리액으로 염산과 숙신산 및 그들의 혼합액을 사용하고, 강산성 양이온 교환수지, Dowex 50W-x8, 100∼200 mesh 를 사용하여 금속, Mg(Ⅱ), Ca(Ⅱ), Sr(Ⅱ), Ba(Ⅱ), Cr(Ⅲ), Mn(Ⅱ), Fe(Ⅲ), Co(Ⅱ), Ni(Ⅱ), Cu(Ⅱ), Cd(Ⅱ), Hg(Ⅱ) 및 Pb(Ⅱ)의 이온들에 대한 분포계수를 측정하였다. 분리도와 양이온의 전하와의 관계를 고찰하였고, 이온반지름에 따른 분포계수를 비교하였다. 특히 0.9M 염산용액에서 Fe(Ⅲ), Co(Ⅱ), Ni(Ⅱ)의 완전분리가 가능하였다.