Complex formation and solubility of Pu(IV) with malonic and succinic acids

2009 ◽  
Vol 97 (4-5) ◽  
Author(s):  
Takayuki Sasaki ◽  
Taishi Kobayashi ◽  
I. Takagi ◽  
Hirotake Moriyama ◽  
A. Fujiwara ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Solvent Extraction ◽  
Complex Formation ◽  
Extraction Method ◽  
Formation Constants ◽  
Complex Formation Constants ◽  
Solvent Extraction Method ◽  
Experimental Solubility Data ◽  
Experimental Solubility ◽  
Solubility Products

AbstractThe complex formation constants of tetravalent plutonium ion with malonic and succinic acids in aqueous solution were determined by the solvent-extraction method. Also, by taking the known values of the solubility products, the hydrolysis constants and the formation constants, the experimental solubility data of plutonium in the presence of carboxylates were analyzed.

Apparent formation constants of Pu(IV) and Th(IV) with humic acids determined by solvent extraction method

2012 ◽  
Vol 100 (10) ◽  
pp. 737-746 ◽  
Author(s):  
Takayuki Sasaki ◽  
S. Aoyama ◽  
H. Yoshida ◽  
Y. Kulyako ◽  
M. Samsonov ◽  
...  
Keyword(s):  
Solvent Extraction ◽  
Humic Acids ◽  
Extraction Method ◽  
Formation Constants ◽  
Solvent Extraction Method

Complex formation of Eu(III) with polyacrylic acid

2000 ◽  
Vol 88 (9-11) ◽  
Author(s):  
Takumi Kubota ◽  
Osamu Tochiyama ◽  
K. Tanaka ◽  
Yuichi Niibori
Keyword(s):  
Solvent Extraction ◽  
Complex Formation ◽  
Metal Ions ◽  
Humic Substances ◽  
Polyacrylic Acid ◽  
Extraction Method ◽  
Quantitative Description ◽  
Solvent Extraction Method ◽  
Heterogeneous Nature ◽  
Polyelectrolyte Effect

For the quantitative description of the interaction of metal ions with humic substances, it is necessary to clarify the effects of both polyelectrolyte and heterogeneous nature of humic substances. To estimate the polyelectrolyte effect separately, polyacrylic acid (MW = 90000) has been selected as a representative of well-defined, homogeneous polymeric weak acids, and its interaction with Eu(III) has been investigated by a solvent extraction method using

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