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題 名 | Polarography of Uranyl lon and Uranium (VI)-P-Aminobenzoate Complexes in Water-Methanol Medium=鈾離子及鈾(VI)- 對位﹣氨基苯甲酸錯鹽在水﹣甲醇溶劑之極譜研究 |
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作 者 | 高振豐; 賴再得; | 書刊名 | Journal of the Chinese Institute of Chemical Engineers |
卷 期 | 17:3 1986.05[民75.05] |
頁 次 | 頁151-155 |
分類號 | 343.38 |
關鍵詞 | 水; 甲醇溶劑; 氨基苯甲酸錯鹽; 極譜; 鈾; 鈾離子; |
語 文 | 英文(English) |
中文摘要 | 鈾離子於甲醇[MeOH]<30V%在滴汞極的陰極還原為一個電子可逆且擴散控制的程序。此錯化物種類被證在pH≤3.50為UO₂(MeOH)□,UO₂(MeOH)□和UO₂(MeOH)□,而pH>3.50為(UO₂)₂(OH)₂(MeOH)□。至於鈾-甲醇-對位氨基苯甲酸系,在pH範圍2.40-8.38,對位氨基苯甲酸濃度0.04-0.10M,且在20-50V%甲醇中是為不可逆且擴散還原波。當[MeOH]20V%且[P-ABA]≤0.02M中,由於對位氨基苯甲酸在滴汞極之吸附,單波被分裂為雙波。傳遞係數及速率常數也被決定。 |
英文摘要 | The cathodic reduction of uranyl ion in [MeOH]<30V% at the dropping mercury electrode is one-electron reversible and diffusion-controlled process. The complex species identified are UO₂(MeOH)□, UO₂(MeOH)□, and UO₂(MeOH)□ at pH≤3.50, and (UO₂)₂(OH)₂(MeOH)□ at pH>3.50. For the uranyl-MeOH-P-ABA system, an irreversible and diffusion-controlled reduction wave was obtained at pH range 2.40-8.38 and P-ABA concentration 0.04-0.10M in 20-50 V% methyl alcohol. When [MeOH]≤20V% and [P-ABA]≤0.02M, the single wave splits into double wave by the adsorption of P-ABA on the dropping mercury electrode. The transfer coefficients and rate constants were determined. |
本系統中英文摘要資訊取自各篇刊載內容。