- 作者: 賴再得; 張德良
- 作者服務機構: Contribution from the Department of Chemical Engineering, Cheng Kung University
- 中文摘要:
Complex formation between uranium (VI) and succinic acid haa been studied polarographically.
The discussion concerning the first wave of the chelate in pH range 2.0 to 6.5 was given in detail.
The difference of ligands between U(VI) and U(V) was found to be two, and the electrode reactions at 2.0+
UO2(Suc)..-2n+2+H+e=UO2(Suc)…-2n+5+HSuc¯+Suc=
And UO2(Suc)..-2n+2+e=UO2(Suc)…-2n+5+2Suc=
respectively. The dissociation constants at 30℃ were calculated as,
+
[UO2(Suc) …-2n+5][HSuc¯][Suc=]/[UO2(Suc).. -2n+2][H]=19.2
[UO2(Suc)…-2n+6][Suc=]2/[UO2(Suc).. -2n+2]=3.69×10¯6
A linear relation was found to exist between the diffusion current and uranyl ion concentration in a range between 2×10¯4 M to 3×10¯3 M. - 英文摘要: --
- 中文關鍵字: --
- 英文關鍵字: --