COMPLEXATION OF TRIALKYLLEAD WITH DIETHYLDITHIOCARBAMATE

Sodium salt of diethyldithiocarbamate (NaDDC) is one of the best-known organic reagents which form extractable chelates with many metal ions . Although many data on the characteristics of metal-DDC complexes hav e been published, no information about organometal complexes is availa ble. In this work, the calculation of stability constants of trialkyll ead-DDC complexes is described and their values are measured by electr ochemical techniques. Obtained values are (1.9 +/- 0.7) x 10(6) for (C 2H5)(3)PbDDC and (3.1 +/- 1.5) x 10(5) for (CH3)(3)PbDDC. The applicat ion of these constants for the prediction of trialkylleads behavior du ring complexometric extraction from water to organic solvent is discus sed.