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A. M. Mamedova, V. M. Ivanov, S. A. Akhmedov
Interaction of tungsten(VI) and
vanadium(V) with pyrogallol red and bromopyrogallol red in the presence of
surfactants
Abstract
Complexation of tungsten(VI) and
vanadium(V) with pyrogallol red (PR) and bromopyrogallol red (BPR) in the
presence cationic and nonionic surfactants were studied by spectrophotometric
and colorimetric methods. Optimal conditions for the complexation and
stoichiometry were obtained. Molar absorption coefficients and molar
chromaticity functions coefficients of the complexes W(VI) and V(V) with PR and
BPR were determined in the presence of cetylpyridinium bromide and OP-7.
Copyright (C) Chemistry Dept., Moscow State University, 2002
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