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The Hidden Equilibrium in Aqueous Sodium Carbonate Solutions − Evidence for the Formation of the Dicarbonate Anion
Author(s) -
Zeller KlausPeter,
Schuler Paul,
Haiss Peter
Publication year - 2005
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.200400445
Subject(s) - chemistry , carbonate , aqueous solution , inorganic chemistry , hydrolysis , carbonate ion , carbon dioxide , hydroxide , sodium carbonate , salt (chemistry) , sodium hydroxide , oxygen , sodium , organic chemistry
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)