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V. M. Ivanov, T. O. Samarina, V. N. Figurovskaya
Optical
and chromaticity characteristics of copper(II) complex with 1-nitroso-2-naphthol-3,6-disulfonic
acid
Abstract
Optimal conditions of
complexation copper(II) with 1-nitroso-2-naphthol-3,6-disulfonic acid were
found by spectrophotometric method. An optimum interval pH
of formation of a complex 6,5 – 7,9. The ten-multiple surplus reagent suffices
for quantitative formation of a complex. Chemical analytical and characteristic
of a complex in an interval concentration of copper (1,26 – 6,39)´10–5 M are determined. Molar coefficient of absorption of a complex is
equal (1,21±0,01)´104 (n = 5, P = 0,95). The function and
molar coefficient of chromaticity are determined. The most sensitive functions
are Z [(2,58 ± 0,04)´105] and G [(3,88 ± 0,06)´105] (n = 5, P = 0,95).
Copyright (C) Chemistry Dept., Moscow State University, 2002
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