Anion Exchange Behaviour of Zr, Hf, Nb, Ta and Pa as Homologues of Rf and Db in Fluoride Medium
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| Formato: | Artículo científico |
| Lenguaje: | en |
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Sociedad Química de México
2010
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| _version_ | 1876464041209102336 |
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| author | Fabiola Monroy-Guzman |
| author_facet | Fabiola Monroy-Guzman |
| contents | Anion Exchange Behaviour of Zr, Hf, Nb, Ta and Pa as Homologues of Rf and Db in Fluoride Medium Fabiola Monroy-Guzman Didier Trubert Lucette Brillard Michel Hussonnois Olimpus Constantinescu Claire Le Naour Multidisciplinaria (Ciencias Naturales y Exactas) HF Zr Ta Nb Dubnium Studies of the chemical property of transactinide elements are very difficult due to their short half-lives and extremely small production yields. However it is still possible to obtain considerable information about their chemical properties, such as the most stable oxidation states in aqueous solution, complexing ability, etc., comparing their behaviour with their lighter homologous in the periodic table. In order to obtain a better knowledge of the behavior of rutherfordium, Rf (element 104), dubnium, Db (element 105) in HF medium, the sorption properties of Zr, Hf, Nb, Ta and Pa, homologues of Rf and Db, were studied in NH4F/HClO4 medium in this work. Stability constants of the fluoride complexes of these elements were experimentally obtained from Kd obtained at different F- and H+ concentrations. The anionic complexes: [Zr(Hf)F5]-, [Zr(Hf)F6]2-, [Zr(Hf)F7]3-, [Ta(Pa)F6]-, [Ta(Pa)F7]2-, [Ta(Pa)F8]3-, [NbOF4]- and [NbOF5]2- are present as predominant species in the HF range over investigation. 2010 artículo científico 1870-249X https://www.redalyc.org/articulo.oa?id=47516172005 en http://www.redalyc.org/revista.oa?id=475 Journal of the Mexican Chemical Society application/pdf Sociedad Química de México Journal of the Mexican Chemical Society (México) Num.1 Vol.54 |
| format | Artículo científico |
| id | redalyc_47516172005 |
| institution | Redalyc |
| language | en |
| publishDate | 2010 |
| publisher | Sociedad Química de México |
| spellingShingle | Anion Exchange Behaviour of Zr, Hf, Nb, Ta and Pa as Homologues of Rf and Db in Fluoride Medium Fabiola Monroy-Guzman Multidisciplinaria (Ciencias Naturales y Exactas) HF Zr Ta Nb Dubnium Anion Exchange Behaviour of Zr, Hf, Nb, Ta and Pa as Homologues of Rf and Db in Fluoride Medium Fabiola Monroy-Guzman Didier Trubert Lucette Brillard Michel Hussonnois Olimpus Constantinescu Claire Le Naour Multidisciplinaria (Ciencias Naturales y Exactas) HF Zr Ta Nb Dubnium Studies of the chemical property of transactinide elements are very difficult due to their short half-lives and extremely small production yields. However it is still possible to obtain considerable information about their chemical properties, such as the most stable oxidation states in aqueous solution, complexing ability, etc., comparing their behaviour with their lighter homologous in the periodic table. In order to obtain a better knowledge of the behavior of rutherfordium, Rf (element 104), dubnium, Db (element 105) in HF medium, the sorption properties of Zr, Hf, Nb, Ta and Pa, homologues of Rf and Db, were studied in NH4F/HClO4 medium in this work. Stability constants of the fluoride complexes of these elements were experimentally obtained from Kd obtained at different F- and H+ concentrations. The anionic complexes: [Zr(Hf)F5]-, [Zr(Hf)F6]2-, [Zr(Hf)F7]3-, [Ta(Pa)F6]-, [Ta(Pa)F7]2-, [Ta(Pa)F8]3-, [NbOF4]- and [NbOF5]2- are present as predominant species in the HF range over investigation. 2010 artículo científico 1870-249X https://www.redalyc.org/articulo.oa?id=47516172005 en http://www.redalyc.org/revista.oa?id=475 Journal of the Mexican Chemical Society application/pdf Sociedad Química de México Journal of the Mexican Chemical Society (México) Num.1 Vol.54 |
| title | Anion Exchange Behaviour of Zr, Hf, Nb, Ta and Pa as Homologues of Rf and Db in Fluoride Medium |
| topic | Multidisciplinaria (Ciencias Naturales y Exactas) HF Zr Ta Nb Dubnium |
| url | https://www.redalyc.org/articulo.oa?id=47516172005 |