Analytical Sciences
Online ISSN : 1348-2246
Print ISSN : 0910-6340
ISSN-L : 0910-6340
SOLVENT EXTRACTION OF SOME METAL IONS WITH P-T-BUTVLCALIX[6]ARENE
YOSHITAKA MASUDATETUYA SAWANOEIICHI SEKIDO
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1991 Volume 7 Issue Supple Pages 31-34

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Abstract

Hexameric p-t-butylcalix[6]arene(tbca, HmL, m=2 or 1) in the various solvents has shown an ability to extract silver(I), palladium(II) and nickel(II) from the ammonia alkaline solution.The results from liquid liquid extraction study suggested the formation of the 1:1 metal (Ag, Pd and Ni) to tbca complex as the extracted species. A percent extraction (% E) pattern of Pd(II)>Ni(II)>Ag(I) was obtained in 1, 2-dichloroethane, dichloromethane and nitrobenzene solvents. The order of high extractability (pH=11.7 and pH=13.5) corresponds to increase of dielectric constant except nitrobenzene.

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