SEPARATION OF CADMIUM SALICYLATE BY SOLVENT-EXTRACTION USING TRIS(2-ETHYLHEXYL) PHOSPHATE

Tris(2-ethylhexyl) phosphate (T2EHP) is used for the extraction of cad mium salicylate. The experimental conditions are established and the p robable extractable species is ascertained by logo-log C plots. Microg ram amounts of cadmium are determined in the Tris(2-ethylhexyl) phosph ate phase with 1-(2-pyridylazo)-2-naphthol as the chromogenic agent. T he proposed method is used for the separation of cadmium(II) from zinc (II), mercury(II), lead(II), bismuth(III), antimony(III), and thallium (III) and used for the estimation of cadmium in industrial waste water , kidney stone, cigarettes, and alloy samples.