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  • P-ISSN 1225-0163
  • E-ISSN 2288-8985

Studies on Solvent Extraction and Analytical Application of Metal Dithiocarbamate Complexes(II). Extraction Equilibria of Metal-Dibenzylammonium dibenzyldithiocarbamate Complexes

Analytical Science and Technology / Analytical Science and Technology, (P)1225-0163; (E)2288-8985
1996, v.9 no.3, pp.221-234
Lee, Jong-Sun
Choi, Jong-Moon
Choi, Hee-Seon
Kim, Young-Sang
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Abstract

Basic studies for the effective extraction of dibenzylammonium dibenzyldithiocarbamate(DBADBDC) complexes of Ag(I), Pd(II), Au(III) and Pt(IV) into chloroform have been conducted. The effects of pH on the extraction of ligand itself and metal cemplexes showed that DBADBDC itself was uniformly extracted in the pH range of 2~9 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 Pt(IV) : > 3. The distribution ratio and extractabilities were obtained from the partition and extraction equilibria of metal-DBDC complexes between aqueous solution and chloroform. Ag(I) : log D

keywords
Dibenzylammonium dibenzyldithiocarbamate(DBADBDC), Extraction, Distribution ratio, Extraction constant, Noble metal ion


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