| 金属萃取平衡与软-硬酸碱规则 |
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| 引用本文： | 杨天林,杨永会,孙思修,宋其圣,孙绚.金属萃取平衡与软-硬酸碱规则[J].高等学校化学学报,1999,20(1):22-24. |
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| 作者姓名： | 杨天林 杨永会 孙思修 宋其圣 孙绚 |
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| 作者单位： | 1. 宁夏大学化学系, 银川 750021;
2. 山东大学化学学院, 济南 250100 |
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| 摘 要： | 软硬酸碱规则从宏观角度描述化合物的形成及性质,在配合物稳定性的判断方面有广泛应用.前文1]报道了萃取速率常数与金属离子的软硬酸碱强度的关系,本文研究了萃取平衡常数与金属离子的软硬酸碱强度的关系.
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| 关 键 词： | 二-(2-乙基己基)磷酸 萃取平衡 软-硬酸碱规则 金属离子 |
| 收稿时间： | 1997-10-28 |
The Extraction Equilibrium and the HSAB Rule |
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| YANG Tian-Lin,YANG Yong-Hui,SUN Si-Xiu,SONG Qi-Sheng,SUN Xuan.The Extraction Equilibrium and the HSAB Rule[J].Chemical Research In Chinese Universities,1999,20(1):22-24. |
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| Authors: | YANG Tian-Lin YANG Yong-Hui SUN Si-Xiu SONG Qi-Sheng SUN Xuan |
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| Institution: | 1. Department of Chemistry, Ningxia University, Yinchuan, 750021;
2. Department of Chemistry, Shandong University, Jinan, 250100 |
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| Abstract: | The extraction equilibrium of Fe(Ⅲ), Be(Ⅱ), Mn(Ⅱ), Co(Ⅱ), Ni(Ⅱ), Cu(Ⅱ), Zn(Ⅱ), Pb(Ⅱ)and Cd(Ⅱ)from nit rate medium with di-(2-et hylhexyl)pHospHoric acid (HDEHP)in kerosene were st udied at(298±1)K.The correlation between The extraction equi-librium constants of Metalions and The HSAB rule was discussed.The experimental results indi-cate that Their Kexand ΔG ○ are increasing with The increase of hardness of Lewis acid. |
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| Keywords: | Di2(2-et hylhexyl)phosphoric acid Extraction equilibrium Rule of hard and soft acids and bases(HSAB) Metalions |
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