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The Hidden Equilibrium in Aqueous Sodium Carbonate Solutions − Evidence for the Formation of the Dicarbonate Anion

✍ Scribed by Klaus-Peter Zeller; Paul Schuler; Peter Haiss

Publisher
John Wiley and Sons
Year
2005
Tongue
English
Weight
123 KB
Volume
2005
Category
Article
ISSN
1434-1948

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✦ Synopsis

Abstract

Crossover ^13^C NMR experiments between [^13^C]carbonate and [^18^O]carbonate in aqueous solution confirm the combined action of two oxygen‐exchange modes. The isotopomeric carbon dioxides formed in the hydrolysis equilibrium of the labeled carbonate anions react with hydroxide with formation of hydrogencarbonate and with isotopomeric carbonate anions yielding the corresponding dicarbonate species, which, in the back reaction, form carbon dioxide and carbonate anions with distributed oxygen. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2005)

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