Spectrophotometric study of hexanitrocobaltate(III) ion spontaneous reduction in water-ethanol and water-acetone mixtures
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The kinetics of the spontaneous reduction of hexanitrocobaltate(III) ion have been investigated spectrophotometrically (lambda=360 nm at 298 K) in ethanol or acetone water mixtures containing 0, 10, 25 and 50 % of organic solvents. The mechanism of this process was expressed by means of two consecutive first-order reactions. Both of the first-order rate constants decrease with the increasing nonaqueous species content. The reduction of hexanitrocobaltate(III) ion in the mixtures was much slower than the corresponding reaction in water.
Кључне речи:hexanitrocobaltate (III) ion / reduction / mixed solvents / kinetics
Извор:Spectroscopy Letters, 1998, 31, 1, 71-85
ISSN: 0038-7010 (print)