Determination of uranium(IV) hydrolysis constants and solubility product of UO2·xH2O
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| 024 | 7 | 0 | |a 10.1524/ract.91.6.345.20023 |2 doi |
| 035 | |a (NATIONALLICENCE)gruyter-10.1524/ract.91.6.345.20023 | ||
| 245 | 0 | 0 | |a Determination of uranium(IV) hydrolysis constants and solubility product of UO2·xH2O |h [Elektronische Daten] |c [Kenso Fujiwara, Hajimu Yamana, Toshiyuki Fujii, Hirotake Moriyama] |
| 520 | 3 | |a The hydrolysis constants of tetravalent uranium were determined by a solvent extraction method using thenoyltrifluoroacetone(TTA) and 233U. The distribution ratio of U(IV) was measured as a function of the pHc value in the aqueous phase at I=0.1, 0.5 and 1.0, and was analyzed to obtain the hydrolysis constants (βm) of U(OH)m(4-m)+ at the standard state (I=0). By taking the specific ion interaction theory (SIT) for ionic strength corrections, the hydrolysis constants at I=0 were determined to be β1°=13.71±0.31, β2°=26.12±0.21 and β3°=36.85±0.36, together with the ion interaction coefficients of UOH3+, U(OH)22+ and U(OH)3+. The solubility product (Ksp) for the reaction of UO2·xH2O=U4++4OH- + (x-2)H2O was also calculated to be log Ksp° =-53.93±0.20 by considering the hydrolysis constants. | |
| 540 | |a © 2003 Oldenbourg Wissenschaftsverlag GmbH | ||
| 690 | 7 | |a Laboratory techniques, experiments |2 nationallicence | |
| 690 | 7 | |a Analytical chemistry |2 nationallicence | |
| 690 | 7 | |a Inorganic chemistry |2 nationallicence | |
| 700 | 1 | |a Fujiwara |D Kenso |4 aut | |
| 700 | 1 | |a Yamana |D Hajimu |4 aut | |
| 700 | 1 | |a Fujii |D Toshiyuki |4 aut | |
| 700 | 1 | |a Moriyama |D Hirotake |4 aut | |
| 773 | 0 | |t Radiochimica Acta/International journal for chemical aspects of nuclear science and technology |d Oldenbourg Wissenschaftsverlag GmbH |g 91/6/2003(2003-06-01), 345-350 |x 0033-8230 |q 91:6/2003<345 |1 2003 |2 91 |o ract | |
| 856 | 4 | 0 | |u https://doi.org/10.1524/ract.91.6.345.20023 |q text/html |z Onlinezugriff via DOI |
| 908 | |D 1 |a research article |2 jats | ||
| 950 | |B NATIONALLICENCE |P 856 |E 40 |u https://doi.org/10.1524/ract.91.6.345.20023 |q text/html |z Onlinezugriff via DOI | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Fujiwara |D Kenso |4 aut | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Yamana |D Hajimu |4 aut | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Fujii |D Toshiyuki |4 aut | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Moriyama |D Hirotake |4 aut | ||
| 950 | |B NATIONALLICENCE |P 773 |E 0- |t Radiochimica Acta/International journal for chemical aspects of nuclear science and technology |d Oldenbourg Wissenschaftsverlag GmbH |g 91/6/2003(2003-06-01), 345-350 |x 0033-8230 |q 91:6/2003<345 |1 2003 |2 91 |o ract | ||
| 900 | 7 | |b CC0 |u http://creativecommons.org/publicdomain/zero/1.0 |2 nationallicence | |
| 898 | |a BK010053 |b XK010053 |c XK010000 | ||
| 949 | |B NATIONALLICENCE |F NATIONALLICENCE |b NL-gruyter | ||