ELECTROCHEMICAL BEHAVIOUR OF U(V1) NITRATE IN CHLOROFORM AT A MERCURY ELECTRODE THE DEPENDENCE ON SUPPORTING ELECTROLYTE
The mechanistic aspects of the electrochemical reduction of U(V1) nitrate at a mercury electrode in chloroform, using three different supporting electrolytes, are described. In the presence of tetrabutylarnmonium perchlorate (TBAP) as a neutral electrolyte, UO (NO ) , reduced in two irreversible e...
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| Format: | Article |
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| Language: | English |
| Published: |
University of Tehran
1997-09-01
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| Series: | Journal of Sciences, Islamic Republic of Iran |
| Online Access: | https://jsciences.ut.ac.ir/article_31250_4faf9da37077eb035bc9b26042482069.pdf |
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| Summary: | The mechanistic aspects of the electrochemical reduction of U(V1) nitrate at a
mercury electrode in chloroform, using three different supporting electrolytes, are
described. In the presence of tetrabutylarnmonium perchlorate (TBAP) as a neutral
electrolyte, UO (NO ) , reduced in two irreversible electrochemical steps to form a U(V1)-U(V) binuclear complex and U(IV), respectively. In the presence of 0.75 M
piperidinium perchlorate (PP) + 0.25 M piperidine (P) as supporting electrolyte, the
reduction of U0 ( NO ) occurred according to a one-electron irreversible process to U (V). The same behaviour was observed in the presence of 0.5 M tributylamrnonium perchlorate + 0.3 M tributylamine. The diffusion coefficients of U(VI) and U(VI)- U(V) binuclear complex determined by chronoamperometric measurement are 8.8 cm s and 5.37 10 cm s respectively |
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| ISSN: | 1016-1104 2345-6914 |