Authors : C. P. Mane, M. K. Sakate, D. V. Rupnawar, R. A. Nalawade, A. M. Nalawade, R.V. Shejwal and M. A. Anuse
Page Nos : 68-71
Description :
Abstract:
A systematic study of extraction of Cadmium (II) with 2-octylaminopyridine (2-OAP) in xylene at room temperature has been conducted. Quantitative extraction of Cadmium (II) was observed in the 0.7 to 1.0 M concentration range of hydrobromic acid. From the extracted complex species in the organic phase, Cadmium (II) was back extracted with water (3 x 15 mL) and was determined by EDTA titration. Various parameters such as 2-OAP concentration, equilibrium period, effect of various diluents, aqueous: organic volume ratio, acidity and diverse ions were studied. The extraction reaction proceeds with ion- pair formation and the stoichiometry of extracted species was found to be [(2-OAPH+)2. (CdBr4)]-2 (org). The separation and determination of cadmium (II) from associated toxic metal ions in binary and ternary mixtures containing Zn (II), Tl (I), Pb (II), Sb (II) Cr(VI) & Hg (II) were carried out by taking advantage of masking agent.
Keywords- liquid- liquid extraction Cd(II),Bromide media,2-OAP, xylene
