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A study on hydrolytic polymerization of lanthanide ions
Author(s) -
QinHui Luo,
MengChang Shen,
XinLu Bao,
Yi Ding,
AnBang Dai,
AnPang Tai
Publication year - 1990
Publication title -
chinese journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.28
H-Index - 41
eISSN - 1614-7065
pISSN - 1001-604X
DOI - 10.1002/cjoc.19900080506
Subject(s) - lanthanide , chemistry , hydrolysis , ion , aqueous solution , polymerization , hydrolysis constant , inorganic chemistry , reaction rate constant , kinetics , organic chemistry , polymer , physics , quantum mechanics
Experimental data of hydrolytic polymerization of lanthanide ions in aqueous solution were treated by graphic method, computer fitting and pq analysis, species present were ascertained and hydrolysis constants obtained. Ln (OH) 2+ and Ln 2 (OH) 2 4+ predominated in the species of all hydrolysis products. When the first and the second hydrolysis constants were plotted against radii and effective nuclear charge of lanthanide ions, the curves obtained conformed with the “three‐division groups” rule. Correlation between hydrolysis constants of Ln 2 (OH) 2 4+ and other hydrolysis constants is linear. Using the above empirical correlations we calculated hydrolysis constants of all lanthanide ions and obtained satisfactory results which showed good regularity for hydrolysis of lanthanide ions and thus systematized all data of the reaction.