Artículo
Abstract:
The influence of reactor (γ + n) preirradiation on the dissolution of magnetite microcrystals synthetized by a low-temperature wet method was studied. The solvent used was an acid aqueous solution of ascorbic acid. Neither the mechanism of reaction nor the nature of the reactive sites is changed by irradiation, but the number of the latter decrease. These reactive sites are postulated to be iron ions surrounded by imperfect coordination polyhedra, and the influence of radiation traced to the annealing of these sites. The relevance of the results for the use of synthetic oxides as models of nuclear power reactor oxide layers is discussed. The influence of reactor (γ + n) preirradiation on the dissolution of magnetite microcrystals synthetized by a low-temperature wet method was studied. The solvent used was an acid aqueous solution of ascorbic acid. Neither the mechanism of reaction nor the nature of the reactive sites is changed by irradiation, but the number of the latter decrease. These reactive sites are postulated to be iron ions surrounded by imperfect coordination polyhedra, and the influence of radiation traced to the annealing of these sites. The relevance of the results for the use of synthetic oxides as models of nuclear power reactor oxide layers is discussed.
Registro:
| Documento: | Artículo |
| Título: | Reductive dissolution of neutron- and gamma-irradiated magnetite |
| Autor: | Dos Santos Afonso, M.; Di Risio, C.D.; Roitberg Marques, A.R.O.; Blesa, M.A. |
| Filiación: | Departamento de Quimica Inorganica, Analitica y Quimica Fisica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, Pab. II, 1428 Buenos Aires, Argentina |
| Palabras clave: | Chemical Reactions--Radiation Effects; Gamma Rays--Effects; Magnetite--Dissolution; Neutrons--Effects; Nuclear Reactors--Corrosion; Ascorbic Acid; Reductive Dissolution; Iron Oxides; magnetite; article; dissolution; gamma radiation; neutron radiation; nonhuman |
| Año: | 1990 |
| Volumen: | 36 |
| Número: | 3 |
| Página de inicio: | 457 |
| Página de fin: | 460 |
| Título revista: | Radiation Physics and Chemistry |
| Título revista abreviado: | RADIAT. PHYS. CHEM. |
| ISSN: | 01465724 |
| CODEN: | RPCHD |
| CAS: | magnetite, 1309-38-2, 1317-61-9 |
| Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01465724_v36_n3_p457_DosSantosAfonso |
Citas:
---------- APA ----------
Dos Santos Afonso, M., Di Risio, C.D., Roitberg Marques, A.R.O. & Blesa, M.A. (1990) . Reductive dissolution of neutron- and gamma-irradiated magnetite. Radiation Physics and Chemistry, 36(3), 457-460.Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01465724_v36_n3_p457_DosSantosAfonso [ ]
---------- CHICAGO ----------
Dos Santos Afonso, M., Di Risio, C.D., Roitberg Marques, A.R.O., Blesa, M.A. "Reductive dissolution of neutron- and gamma-irradiated magnetite" . Radiation Physics and Chemistry 36, no. 3 (1990) : 457-460.Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01465724_v36_n3_p457_DosSantosAfonso [ ]
---------- MLA ----------
Dos Santos Afonso, M., Di Risio, C.D., Roitberg Marques, A.R.O., Blesa, M.A. "Reductive dissolution of neutron- and gamma-irradiated magnetite" . Radiation Physics and Chemistry, vol. 36, no. 3, 1990, pp. 457-460.Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01465724_v36_n3_p457_DosSantosAfonso [ ]
---------- VANCOUVER ----------
Dos Santos Afonso, M., Di Risio, C.D., Roitberg Marques, A.R.O., Blesa, M.A. Reductive dissolution of neutron- and gamma-irradiated magnetite. RADIAT. PHYS. CHEM. 1990;36(3):457-460.Available from: https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01465724_v36_n3_p457_DosSantosAfonso [ ]
