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| Study on the Interaction of 3,3",3""-Nitrilotripropionic#$NBSAcid–Be(II) Complex |
| Received:July 02, 2014 Revised:July 10, 2014 |
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| DOI： |
| KeyWord:3,3",3""-NitrilotripropionicSAcid; Beryllium; Spectrophotometric; Chelating |
| Author | Institution |
| Ma Jifei |
中国科学院上海应用物理研究所 熔盐化学与工程技术部 |
| Yao Jian |
中国科学院上海应用物理研究所 熔盐化学与工程技术部 |
| Zhu Yin |
中国科学院上海应用物理研究所 熔盐化学与工程技术部 |
| Li Yulan |
中国科学院上海应用物理研究所 熔盐化学与工程技术部 |
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| Abstract: |
| The composition and conditional stability constants of 3,3",3""-NitrilotripropionicSAcid and Be2 have been determined by molar ratio method and Job’s method on the Hitachi UV-Vis spectrophotometer. The stoichiometric ratio of NTP to Be2 in the chromophoric complex was determined to be 1:1. The conditional stability constant was lgK=4.35, indicating that NTP and Be2 complex is a complex of medium stability. The absorption spectra of the complex achieved remained unchanged after mixing at least 2 hours. In competition with the H , NTP is good sequestering agent at pH 4.5-6 for Be2 . |
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