caa a22 4500 465729592 CHVBK 20180323111737.0 cr unu---uuuuu 170327e19901001xx s 000 0 eng 10.1007/BF02040310 doi (NATIONALLICENCE)springer-10.1007/BF02040310 Complexes of cadmium with phosphoric acid [Elektronische Daten] [A. Elyayaoui, S. Boulhassa, R. Guillaumont] We have investigated the behaviour of109Cd, in two-phase systems: (HDEHP−C6 H6/ H3 PO4−HClO4−LiOH, μ=0.2), as a function of the independent equilibrium parameters which define the system: pH, equilibrium concentration of H3 PO4 and total concentration of HDEHP in the organic phase. The data have been interpreted in terms of the existence of phosphoric complexes characterized by their order 1 with regard to H3 PO4 and their charge z. The l and z. values are: 0<1<2, z=−2, 0, 1, 2 for the following ranges: 0.7<pH<2.7 and CH3 PO4<4M. Stability constants of the predominant complexes have been obtained. Finally, a formulation of these complexes has been proposed on the basis of partial charge of the atoms. Some complexes, could be formulated as hydroxy-phosphoric species, resulting from competition between hydroxy and dihydrogenophosphate anions. In concentrated phosphoric acid (CH3 PO4=4M), complexation of cadmium is not more than 25%. Akadémiai Kiadó, 1990 Elyayaoui A. Laboratoire de Radiochimie, Département de Chimie, Faculté des Sciences, Rabat, (Maroc) aut Boulhassa S. Laboratoire de Radiochimie, Département de Chimie, Faculté des Sciences, Rabat, (Maroc) aut Guillaumont R. Groupe de Radiochimie, IPN, BP No. 1, 91406, Orsay, Cedex, (France) aut Journal of Radioanalytical and Nuclear Chemistry Kluwer Academic Publishers 142/2(1990-10-01), 403-415 0236-5731 142:2<403 1990 142 10967 https://doi.org/10.1007/BF02040310 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF02040310 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Elyayaoui A. Laboratoire de Radiochimie, Département de Chimie, Faculté des Sciences, Rabat, (Maroc) aut NATIONALLICENCE 700 1- Boulhassa S. Laboratoire de Radiochimie, Département de Chimie, Faculté des Sciences, Rabat, (Maroc) aut NATIONALLICENCE 700 1- Guillaumont R. Groupe de Radiochimie, IPN, BP No. 1, 91406, Orsay, Cedex, (France) aut NATIONALLICENCE 773 0- Journal of Radioanalytical and Nuclear Chemistry Kluwer Academic Publishers 142/2(1990-10-01), 403-415 0236-5731 142:2<403 1990 142 10967 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer