Complex formation of Eu(III) with humic acid and polyacrylic acid

2002 ◽  
Vol 90 (9-11) ◽  
Author(s):  
Takumi Kubota ◽  
Osamu Tochiyama ◽  
K. Tanaka ◽  
Yuichi Niibori
Keyword(s):  
Humic Acid ◽  
Solvent Extraction ◽  
Complex Formation ◽  
Comparative Study ◽  
Polyacrylic Acid ◽  
Extraction Method ◽  
Solvent Extraction Method ◽  
Polyelectrolyte Effect

SummaryWith the intention of estimating the effect of the heterogeneous composition in the humic acid separately from its polyelectrolyte effect, comparative study on the interaction of Eu(III) with humic acid and polyacrylic acid has been carried out by the solvent extraction method with 10

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

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.

scholarly journals Evaluation of the Copper(II) Complexing Ability of Ultrafiltered Humic Acid by the Solvent Extraction Method

2003 ◽  
Vol 19 (9) ◽  
pp. 1277-1280 ◽  
Author(s):  
Hideyuki ITABASHI ◽  
Yusuke KAMATA ◽  
Daisuke KAWAGUCHI ◽  
Hiroshi KAWAMOTO
Keyword(s):  
Humic Acid ◽  
Solvent Extraction ◽  
Extraction Method ◽  
Complexing Ability ◽  
Solvent Extraction Method
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