Spectrophotometric study of the reaction of Hg(II) with cadion A and cadion 2B.
The reaction between Hg(II) and Cadion A and Cadion 2B has been studied. Methods are suggested for the determination of Hg(II) in the 0.1-4 ppm range with Cadion A and in the 0.2-8 ppm range with Cadion 2B. Of the 49 ions studied only Hg(I), Sn(II), Br(-), I(-), MnO(-)(4), EDTA, SCN(-), CN(-) and S(2-) interfere. The combination ratios and instability constants of the Hg-Cadion complexes were determined. The structural formulae of the complexes were deduced from the infrared spectra and elemental and thermogravimetric analyses.
Popa
G
G
Department of Analytical Chemistry, Faculty of Chemistry Polytechnic Institute, Bucharest, Romania.
Danet
A F
AF
Popescu
M
M