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V. M. Ivanov, V. N. Figurovskaya, Y. I. Shcherbakova
Chromaticity characteristics of chrome (VI)
solutions
Abstract
The spectra of absorption of solutions
chrome (VI) in the form dichromat-ions (pH 1-5) and chromat-ions (pH 7–9) are
investigated. The solutions have maximum of absorption at 360 and 380 nm and
molar coefficients extinction 155¸7 and 935¸27 for Cr2O72–
and CrO42– accordingly. Are investigated chromaticity of
function of this forms chrome (VI) and is shown, that they are higher on 1–1,5
about in comparison with molar coefficients extinction. In all cases the
yellowness is maximal.
Key words: dichromat-ions , chromat-ions,
optical and chromaticity characteristics.
Copyright (C) Chemistry Dept., Moscow State University, 2002
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