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KMID : 0385519960090030221
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Analytical Science & Technology
1996 Volume.9 No. 3 p.221 ~ p.234
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Studies on Solvent Extraction and Analytical Application of Metal Dithiocarbamate Complexes(Ⅱ). Extraction Equilibria of Metal-Dibenzylammonium dibenzyldithiocaromate Complexes
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이종선/Lee, Jong-Sun
최종문/최희선/김영상/Choi, Jong-Moon/Choi, Hee-Seon/Kim, Young-Sang
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Abstract
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Basic studies for the effective extraction of dibenzylammonlum dibenzyldithiocarbamate(DBADBDC) complexes of Ag(I), Pd(II),,Au(III),and´Pt(IV) into chloro form have been conducted´. The effects of ´pH on the extraction ofligaad itself and metal complexes showed that DBADBDC itself was uniformly extracted.in the pH range of --9 and metal complexes were effectively extracted at the pH range as follows. That is, Ag(I)
in an acidic aqua medium, Pd(II) : > 4,Au(III) : wide range, and `- > 3. The distribution ratio and extractabili ties were obtained from the partitionand extraction equilibria of metal-DBDC complexes between aqueous solution and chloroform. Ag(l) : log D=4.226 E(%)=99.9% in the aqueous solution of pH 0, Pd(II) : log D=1.804 E(%)
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