HYDROXIDE COMPLEXES OF LANTHANIDES .2. SAMARIUM(III) IN PERCHLORATE MEDIUM

被引:27
作者
KRAGTEN, J [1 ]
DECNOPWEEVER, LG [1 ]
机构
[1] UNIV AMSTERDAM,ANALYT CHEM LAB,NL-1018 WV AMSTERDAM,NETHERLANDS
关键词
D O I
10.1016/0039-9140(79)80025-9
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
From the precipitation borderline in the pM′-pH diagram, determined experimentally under CO2-free conditions, the stability constants of the mononuclear and polynuclear species of samarium hydroxide have been established. The values found are log*β1 = -7.5, log*β2 = -15.0, log*β3 = -22.7, logβ4, 3 = -19.5 and log*Ks0 = 17.5. They refer to fresh precipitates, prepared at room temperature in sodium perchlorate medium with an ionic strength of 1. © 1979.
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页码:1105 / 1109
页数:5
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