乙异羟肟酸与Zr(Ⅳ), UO<sup>2+</sup><SUB>2</SUB>配合物稳定常数的测定

卞晓艳; 杨素亮; 郑卫芳; 叶国安

乙异羟肟酸与Zr(Ⅳ), UO²⁺₂配合物稳定常数的测定

中国原子能科学研究院放射化学研究所,北京 102413

详细信息

通讯作者:
卞晓艳

中图分类号: O641.4
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出版历程
- 收稿日期: 2007-04-05
- 修回日期: 2007-12-17
- 刊出日期: 2008-05-19

Determination of the Stability Constants of Complexes of Zr(Ⅳ) and UO²⁺₂ With Acetohydroxamate

China Institute of Atomic Energy, P. O. Box 275(26), Beijing 102413, China

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Corresponding author:
BIAN Xiao-yan

摘要

摘要: 对乙异羟肟酸(AHA)与Zr(Ⅳ), UO²⁺₂的配位行为进行了初步研究，测定了AHA与Zr(Ⅳ), UO²⁺₂配合物的稳定常数。结果表明，在HClO₄体系中，AHA与Zr(Ⅳ), UO²⁺₂分别发生三、二级配位，其稳定常数分别为：β₁(Zr(Ⅳ))= （6.7±0.1）×10¹³， β₂(Zr(Ⅳ)) =(1.8±0.1)×10²⁵， β₃(Zr(Ⅳ))=(3.8±0.3)×10³⁵； β₁(UO²⁺₂)=(8.6±0.4)×10⁷， β₂(UO²⁺₂)=(3.8±0.1)×10¹⁴。
- 乙异羟肟酸 /
- Zr(Ⅳ) /
- UO²⁺₂ /
- 配位 /
- 稳定常数
Abstract: An investigation was made on the formation of complexes between acetohydroxamic acid and UO²⁺₂,Zr(Ⅳ) ions. The stability constants of the complexes of zirconium ion and uranyl ion with acetohydroxamic acid were determined by using the distribution method and the pHpotentiometric method respectively. The values of the stepwise stability constant thus obtained are the following: β₁(Zr(Ⅳ))=(6.7±0.1)×10¹³， β₂(Zr(Ⅳ)) =(1.8±0.1)×10²⁵， β₃(Zr(Ⅳ))=(3.8±0.3)×10³⁵； β₁(UO²⁺₂)=(8.6±0.4)×10⁷， β₂(UO²⁺₂)=(3.8±0.1)×10¹⁴.
- acetohydroxamic acid /
- Zr(Ⅳ) /
- UO²⁺₂ /
- complexation /
- stability constant

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参考文献(11)

[1]	Chatterjee B. Donor Properties of Hydroxamic Acids[J]. Coord Chem Rev, 1978, 26: 281-303.
[2]	Kurzak B, Kozlowshi H, Farkas E. Hydroxamicand Aminohydroxamic Acids and Their Complexes With Metal Ions[J]. Coord Chem Rev, 1992, 114: 169.
[3]	钟祥，梁娟秋.新型螯合萃取剂H106[J]. 金属学报，1982， 18(2)： 221-234.
[4]	黄林旋，吴祥林.异肟酸类型捕收剂的研究与浮选稀土矿物实验[J].稀土，1985(3): 1-4.
[5]	Baroncelli F, Grossi G. The Complexing Power of Hydorxamic Acids and Its Effect on the Behaviour of Organic Irradiated Fuels—I. The Complexes Between Benzohydroxamic Acid and Zirconium, Iron(Ⅲ) and UO²⁺₂[J]. J Inorg Nucl Chem, 1965, 27: 1 085-1 092.
[6]	Barocas A, Baroncelli F, Biondi G B, et al. The Complexing Power of Hydroxamic Acids and Its Effect on the Behaviour of Organic Irradiated Fuels—II. The Complexes Between Benzohydroxamic Acid and Thorium, Uranium(Ⅳ) and Plutonium(Ⅳ)[J]. J Inorg Nucl Chem, 1966, 28: 2 961-2 967.
[7]	江浩，常志远，潘永军，等.乙异羟肟酸型配位体对TBP萃取钚行为的影响研究[J].核化学与放射化学，2000， 22(1)： 1-7.
[8]	郑卫芳，常志远.乙异羟肟酸的合成及其与Pu(Ⅳ)，Np(Ⅳ)配合物稳定常数的测定[J].核化学与放射化学，2001， 23(1)： 1-6.
[9]	许贺卿.铀化合物转化工艺学[M].北京：原子能出版社，1994： 97-100.
[10]	Yoshifumi Koide, Masazumi Uchino, Hideto Shosenji, et al. Studies of Collectors X. Complexing Ability of Amino--Hydroxamic Acid Ligands With Dioxouranium(Ⅵ) in Aqueous Solution[J]. Bull Chem Soc Jpn, 1989, 62(11): 3 714-3 715.
[11]	戴安邦.配位化学[M].北京：科学出版社，1987：1， 307.