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The reduction of cupric salts in aqueous solutions by carbon monoxide.

The kinetics of the carbon monoxide reduction of Cu(II) to Cu(I) in aqueous solutions were studied at 120°C and carbon monoxide pressures up to 1360 atm. The reduction was followed spectrophoto-metrically in a high pressure titanium cell specifically developed for studying reactions between transition metal ions and gaseous reducing agents.
The observed kinetics in acetate-buffered solutions yield a rate law of the form
[ Formula omitted ]
The rate law describes a reaction that occurs by two parallel paths, one of which is effectively independent of pressure and is accounted for by a stable carbon monoxide complex, described by Cu(CO)+. The pressure-dependent path contains both a pH-dependent and pH-independent reaction. The observed kinetics are consistent with the following mechanism which includes the insertion of a carbon monoxide molecule between a copper ion and a co-ordinated water molecule. [ Formulas omitted ] The effect of complexing was found to be quite minor. This was further verified by studies in sulphate and perchlorate solutions. / Applied Science, Faculty of / Materials Engineering, Department of / Graduate

Identiferoai:union.ndltd.org:UBC/oai:circle.library.ubc.ca:2429/38551
Date January 1963
CreatorsByerley, John Joseph
PublisherUniversity of British Columbia
Source SetsUniversity of British Columbia
LanguageEnglish
Detected LanguageEnglish
TypeText, Thesis/Dissertation
RightsFor non-commercial purposes only, such as research, private study and education. Additional conditions apply, see Terms of Use https://open.library.ubc.ca/terms_of_use.

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