| Determination of Oxide in FLINAK Melt by Electrochemical Titration Technique |
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| 作者姓名： | 王新东 段淑贞 Christensen E. Von Barner J.H. Bjerrum N.J. |
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| 作者单位： | University of Science and Technology Beijing Beijing 100083，China，University of Science and Technology Beijing，Beijing 100083，China，The Technical University of Denmark，DK-2800 Lyngby，Denmark，The Technical University of Denmark，DK-2800 Lyngby，Denmark，The Technical University of Denmark，DK-2800 Lyngby，Denmark |
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| 摘 要： | The use of K_2NbF_7 as a probe solute for the cyclic voltammetric determination of oxide in FLINAKmelts was studied and demonstrated.This method is based on a complex reaction and the peak current densityof NbF_7~(2-)reduction.The reaction constant was determined to be very large at 973 K.A cyclic voltammetricstandard addition experiment is also employed to determine the amount of oxide in FLINAK melt.The oxidecontent of FLINAK melts is equal to the amount of Nb(V)added minus the amount of NbF_7~(2-)which is ob-tained from the voltammogram.
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Determination of Oxide in FLINAK Melt by Electrochemical Titration Technique |
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| Wang Xindong,Duan Shuzhen University of Science and Technology Beijing,Beijing ,China Christensen E.,von Barner J.H.,Bjerrum N.J.Determination of Oxide in FLINAK Melt by Electrochemical Titration Technique[J].Rare Metals,1993(2). |
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| Authors: | Wang Xindong Duan Shuzhen University of Science and Technology Beijing Beijing China Christensen E von Barner JH Bjerrum NJ |
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| Affiliation: | Wang Xindong,Duan Shuzhen University of Science and Technology Beijing,Beijing 100083,China Christensen E.,von Barner J.H.,Bjerrum N.J.The Technical University of Denmark,DK-2800 Lyngby,Denmark |
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| Abstract: | The use of K_2NbF_7 as a probe solute for the cyclic voltammetric determination of oxide in FLINAK melts was studied and demonstrated.This method is based on a complex reaction and the peak current density of NbF_7~(2-)reduction.The reaction constant was determined to be very large at 973 K.A cyclic voltammetric standard addition experiment is also employed to determine the amount of oxide in FLINAK melt.The oxide content of FLINAK melts is equal to the amount of Nb(V)added minus the amount of NbF_7~(2-)which is ob- tained from the voltammogram. |
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| Keywords: | Oxide FLINAK melt Electrochemical titration Niobium |
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