Potentiometric titration of metal ions in methanol
Potentiometric titration of metal ions in methanol
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DOI：
10.1139/v03-035
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发表时间：
2003-06-01
期刊：
影响因子：
--
通讯作者：
Brown, RS
中科院分区：
文献类型：
--
作者：
Gibson, G;Neverov, AA;Brown, RS
The potentiometric titrations of nine lanthanide(III) triflates, Zn-II and Cu-II triflate, and the Ni-II, Co-II, Mg-II, and Ti-IV perchlorates were obtained in methanol to determine the titration constants (defined as the (s)(s)pH at which the [OCH3-] /[Mx+](t) ratios are 0.5 and 1.5) as well as the apparent (s)(s)pK(a) values for deprotonation of the metal-bound solvent molecules. The titrations were performed under various conditions with and without added salts as electrolytes, and the variations in the titration constants are discussed. In selected cases (La3+, Zn2+) the titration profiles were analyzed using a complex fitting program to obtain information about the species present in solution.
