| 穴醚[2, 2, 2]和穴醚[2, 2]对镉离子萃取行为的研究 |
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| 引用本文： | 沈定米,王素华. 穴醚[2, 2, 2]和穴醚[2, 2]对镉离子萃取行为的研究[J]. 无机化学学报, 1987, 3(4): 150-155 |
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| 作者姓名： | 沈定米 王素华 |
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| 作者单位： | 四川大学原子核科学技术研究所 成都(沈定米)，四川大学化学系 成都(王素华) |
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| 摘 要： | 本文研究了穴醚[2,2,2]和穴醚[2,2]在硝基甲烷中对镉的萃取行为。探讨了溶剂、穴醚浓度,碱浓度,无机酸浓度,盐效应及共存离子对镉萃取的影响。实验结果表明,硝基甲烷ε=35.6,μ=3.4德拜宜作为穴醚的溶剂。当穴醚[2,2,2]——硝基甲烷的浓度为2×10~(-3)M,Me_4NOH浓度为4×10~(-2)M时对镉的萃取最为有利。无机酸的引入使穴醚质子化程度加大,盐效应对镉的萃取无明显影响。十八种共存离子对镉萃取无干扰,因而选择性高。实验结果为用穴醚[2,2,2]萃取镉提供了依据。
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| 关 键 词： | 穴醚 镉 萃取 |
| 收稿时间： | 1986-12-25 |
EXTRACTION OF CADMIUM ION WITH CRYPTAND [ 2, 2, 2 ] AND CRYPTAND [2, 2] |
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| Shen Dingmi and Wang Suhua`. EXTRACTION OF CADMIUM ION WITH CRYPTAND [ 2, 2, 2 ] AND CRYPTAND [2, 2][J]. Chinese Journal of Inorganic Chemistry, 1987, 3(4): 150-155 |
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| Authors: | Shen Dingmi and Wang Suhua` |
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| Affiliation: | Institute of Nuclear Science and Technology, Sichuan University, Chendu and Department of Chemistry, Sichuan University, Chengdu |
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| Abstract: | The solvent extraction of cadmium ion with cryptand [2,2,2] and cryp-tand [2,2] was studied.The extraction of cadmiun ion with cryptand [2,2,2] is better than cryptand [2,2], the cryptands show good extractability for cadmium ion when the concentration of cryptand is 2×10-3M and Me4NOH concentration is 4×10-2M. The salt effect and the influence of other ions are relatively small. |
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| Keywords: | cryptand cadmium extraction |
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