Spontaneous isothermal decomposition of the uranyl carbonate complex (NH4)4[UO2(CO3)3] at room temperature
| Autor: | Václav Baran |
|---|---|
| Rok vydání: | 1987 |
| Předmět: |
Reaction mechanism
Hydrogen Inorganic chemistry chemistry.chemical_element Ammonium uranyl carbonate Condensed Matter Physics Uranyl Isothermal process Uranyl carbonate Dissociation (chemistry) chemistry.chemical_compound chemistry Molecular orbital Physical and Theoretical Chemistry Instrumentation |
| Zdroj: | Thermochimica Acta. 122:277-287 |
| ISSN: | 0040-6031 |
| DOI: | 10.1016/0040-6031(87)87047-8 |
| Popis: | A mechanism for the spontaneous decomposition of ammonium uranyl carbonate starting with the dissociation of ammonium groups and continuing by further reactions is proposed and discussed. Two simultaneous reaction paths, which differ in their proportion of participation in the overall result, are considered for the first two reaction stages, and neutralization of hydrogen and hydroxyl ions takes place during the third stage. The results agree with the mass-balance calculations. The IR active frequencies are not shifted observably until the third stage where changes of chemical composition are only minor. New experimental material for discussion of some basic problems of uranyl bonding is supplied. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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