Effect of reducing agents on the uranium concentration above uranium(IV) amorphous precipitate in Boom Clay pore water
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| 024 | 7 | 0 | |a 10.1524/ract.92.9.545.54969 |2 doi |
| 035 | |a (NATIONALLICENCE)gruyter-10.1524/ract.92.9.545.54969 | ||
| 245 | 0 | 0 | |a Effect of reducing agents on the uranium concentration above uranium(IV) amorphous precipitate in Boom Clay pore water |h [Elektronische Daten] |c [Grégory Delécaut, N. Maes, P. De Cannière, L. Wang] |
| 520 | 3 | |a The solubility of U(IV) amorphous precipitates was measured in Boom Clay water in the presence of reducing agents and under the in situ partial pressure of CO2(g) at 10-2.4atm. Boom Clay pore water is of the sodium bicarbonate type (NaHCO3 ∼ 10-2M) and contains about 100mg l-1 of dissolved organic carbon. The total U concentration measured after two-months equilibrating time and the 0.45μm filtration was about 10-6M and higher. This concentration is about 3 orders of magnitude higher than literature data for U(IV) solubility and may suggest the existence of colloids and/or U(VI) species. The U concentration was found decreasing as a function of time within the experimental period. Further experiments are currently performed to evaluate the contribution of the colloids and the role of organic matter. | |
| 540 | |a © 2004 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 Delécaut |D Grégory |4 aut | |
| 700 | 1 | |a Maes |D N. |4 aut | |
| 700 | 1 | |a De Cannière |D P. |4 aut | |
| 700 | 1 | |a Wang |D L. |4 aut | |
| 773 | 0 | |t Radiochimica Acta/International journal for chemical aspects of nuclear science and technology |d Oldenbourg Wissenschaftsverlag GmbH |g 92/9-11/2004(2004-11-01), 545-550 |x 0033-8230 |q 92:9-11/2004<545 |1 2004 |2 92 |o ract | |
| 856 | 4 | 0 | |u https://doi.org/10.1524/ract.92.9.545.54969 |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.92.9.545.54969 |q text/html |z Onlinezugriff via DOI | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Delécaut |D Grégory |4 aut | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Maes |D N. |4 aut | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a De Cannière |D P. |4 aut | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Wang |D L. |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 92/9-11/2004(2004-11-01), 545-550 |x 0033-8230 |q 92:9-11/2004<545 |1 2004 |2 92 |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 | ||