caa a22 4500 378847201 CHVBK 20180305123314.0 cr unu---uuuuu 161128e20030601xx s 000 0 eng 10.1524/ract.91.6.351.20021 doi (NATIONALLICENCE)gruyter-10.1524/ract.91.6.351.20021 A comparision of the extraction of carrier-free 176,177W and 99Mo with that of U, Th, Am, Cm, La, Ce, Tm, Yb, Lu and Hf into Aliquat 336 in toluene from nitric, phosphoric, and sulphuric acid media [Elektronische Daten] [M Johansson, J. Alstad, J. P. Omtvedt, G. Skarnemark] Carrier-free 176,177W and 99Mo have been extracted from 0.1-5.0M nitric, phosphoric and sulphuric acids into 0.22M Aliquat 336, CH3NR3Cl, in toluene. Their extraction properties have been compared to hafnium, to the lanthanides lanthanum, cerium, thulium, ytterbium and lutetium, and to the actinides americium, curium, thorium and uranium. From nitric acid solutions the extracted species of tungsten and molybdenum at low concentrations are probably CH3NR3· HMO4, where M=Mo or W. At higher nitric acid concentrations the extracted species are most likely similar to those of uranium, i.e. (CH3NR3)2·MO2(NO3)4 and possibly CH3NR3·MO2(NO3)3. For the extraction from phosphoric acid solutions the major extracted complex is most likely CH3NR3·MO2(H2PO4)3, while the minor extracted complex may be (CH3NR3)2·MO2(H2PO4)4 or even the more hydrolysed species CH3NR3·HMO4. From sulphuric acid solutions the extraction of molybdenum and tungsten has similarity with the extraction of uranium and thorium, although the decrease with acid concentration is slower. © 2003 Oldenbourg Wissenschaftsverlag GmbH Laboratory techniques, experiments nationallicence Analytical chemistry nationallicence Inorganic chemistry nationallicence Johansson M. aut Alstad J. aut Omtvedt J. P. aut Skarnemark G. aut Radiochimica Acta/International journal for chemical aspects of nuclear science and technology Oldenbourg Wissenschaftsverlag GmbH 91/6/2003(2003-06-01), 351-356 0033-8230 91:6/2003<351 2003 91 ract https://doi.org/10.1524/ract.91.6.351.20021 text/html Onlinezugriff via DOI 1 research article jats NATIONALLICENCE 856 40 https://doi.org/10.1524/ract.91.6.351.20021 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Johansson M. aut NATIONALLICENCE 700 1- Alstad J. aut NATIONALLICENCE 700 1- Omtvedt J. P. aut NATIONALLICENCE 700 1- Skarnemark G. aut NATIONALLICENCE 773 0- Radiochimica Acta/International journal for chemical aspects of nuclear science and technology Oldenbourg Wissenschaftsverlag GmbH 91/6/2003(2003-06-01), 351-356 0033-8230 91:6/2003<351 2003 91 ract CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-gruyter