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A model of the annealing and activation of dissolution sites in magnetite exposed to (γ + n) radiation |
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| Authors: | M. Dos Santos Afonso,Cecilia Di Risio,M. Zysmilich,Roberto O. Marqué s,M.A. Blesa |
| Affiliation: | a Departamento de Química Inorgánica, Analítica y Química Física, and INQUIMAE, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, Pabellón II, 1428, Buenos Aires, Argentina b Departamento Química de Reactores, Comisión Nacional de Energía Atómica, Avenida del Libertador 8250, 1429, Buenos Aires, Argentina |
| Abstract: | The influence of gamma and reactor (n + γ) preirradiation on the dissolution of magnetite microcrystals synthetized by a low-temperature wet method was studied. Two opposite effects affect the dissolution rate: the annealing due to the gamma radiation and the generation of new imperfect coordination polyhedra. A model for the kinetic processes was proposed and the kinetic parameters were calculated. |
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