| 螯合萃取体系萃取常数的计算 |
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| 引用本文： | 陈与德. 螯合萃取体系萃取常数的计算[J]. 高等学校化学学报, 1984, 5(1): 21 |
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| 作者姓名： | 陈与德 |
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| 作者单位： | 复旦大学物理二系 |
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| 摘 要： | 本文介绍了计算萃取常数的七种方法。
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| 收稿时间： | 1982-05-03 |
ESTIMATION OF EXTRACTION CONSTANTS |
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| Chen Yude. ESTIMATION OF EXTRACTION CONSTANTS[J]. Chemical Research In Chinese Universities, 1984, 5(1): 21 |
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| Authors: | Chen Yude |
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| Affiliation: | Second Department of Physics, Fudan University, Shanghai |
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| Abstract: | Seven methods are proposed for estimation of extraction constants as follows.1. The relation:- (pH1/2 )1.0= AZ2/r + BX±+ C-λ(n-1)+(lgK0dm+a)/n+lgKaKd-1 Linear relations between- (pH1/2 )1.0 for two similar cations being extracted with a series of extractants;3. Linear relations between- (pH1/2)1.0 for two similar extractants extract a series of cations;4. Linear relations between- (pH1/2)1.0 for two diluents;5. Linear relations of-(pH1/2)1.0 vs. Z2/r for cations with similar electronegativity value;6. Normal variation of extraction for a series of cations in accordance with Z2/r and electronegativity values;7. Extractants of large ∑pKa match closely with cations of large Z2/r, and extractants of small electrouegativity match closely with cations of large electronegativity. |
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