Gel Extraction of Thiocyanate Complexes of Metals in Layering Systems “Water - Catamine AB - Potassium Chloride” and “Water - Oxyphos B - Ammonium Sulphate”
A. E. LESNOV1, S. A. DENISOVA2, E. YU. CHUKHLANTSEVA1, S. A. ZABOLOTNYKH1, and N. N. OSTANINA1
1Institute of Technical Chemistry, Ural Branch of the Russian Academy of Sciences, Ul. Koroleva, 3, Perm 614013 (Russia)
2Perm State National Research University, Ul. Bukireva, 15, Perm 614990 (Russia)
Keywords: гель-экстракция поверхностно-активными веществами, катамин АБ, оксифос Б, тиоцианатные комплексы, фотометрия, gel extraction with surface-active susbtances, catamine AB, oxyphos B, thiocyanate complexes, photometry
Abstract
The distribution of thiocyanate acidocomplexes of a series of metals in layering systems “water - catamine AB - potassium chloride” and “water - oxyphos B - ammonium sulphate” depending on the concentrations of NH4SCN and H2SO4 were studied. The cobnditions for quantitative extraction of copper (II), zinc, iron (III), cobalt were determined. The spectrophotometric characteristics of extractable thiocyanate complexes of Cu(II), Co and Fe(III) were studied. A procedure for extraction photometric determination of cobalt was developed.
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