Solvent Extraction Behavior of Platinum(IV) and Palladium(II) as Chlorocomplex Acids with Trioctylphosphine Oxide

Autor: Akihiko Okud, Isao Kobayashi, Yuko Hasegawa
Rok vydání: 1991
Předmět:
Zdroj: Analytical Sciences. 7:377-381
ISSN: 1348-2246
0910-6340
DOI: 10.2116/analsci.7.377
Popis: In order to compare the extractions of platinum(IV) and palladium(II) complex acids with trioctylphosphine oxide (TOPO) to those of other inorganic acids, the distribution ratio of these metals between o-xylene containing TOPO and 4.0mol/dm3 (Na, H)(Cl, HSO4) has been measured at 298K. The extraction curves can be explained by the assumption that the dominant extracted species ratio of either platinum(IV) or palladium(II) would be 2:1:4 for proton:chlorocomplex anion:TOPO, at least in 4.0mol/dm3 chloride media. The extraction constants have been determined to be 105.01 for platinum(IV) and 104.04 for Palladium(II).
Databáze: OpenAIRE