@article{b9e7944d30f84cb4a36c78d417dbc95e,
title = "Comparison of the extractabilities of tetrachloro- and tetrabromopalladate(II) ions with a thiodiglycolamide compound",
abstract = "Using N,N,N',N'-tetra-2-ethylhexyl-thiodiglycolamide (TEHTDGA) in n-dodecane as the extractant, we compared the percentages of Pd(II) extracted from HCl and HBr solutions, and analyzed the structures of the Pd(II)-extractant complexes. For comparison, similar experiments were performed with di-n-hexyl sulfide (DHS), a well-known sulfide-type extractant. TEHTDGA extracted Pd(II) from both HCl and HBr solutions much faster than DHS. The Pd(II)/(TEHTDGA or DHS) stoichiometry in the organic phase was 1:2. For TEHTDGA, the extractability of Pd(II) from HBr solution was inferior to that from HCl solution, whereas the opposite was true for DHS. However, FT-IR spectroscopy and EXAFS measurements indicated that the inner-sphere structure of Pd(II) in the TEHTDGA complex was almost the same as that in the DHS system: in both cases, two of the halide ions in the tetrachloro- or tetrabromopalladate(II) ion were replaced by the sulfur atoms of two extractant molecules.",
keywords = "HBr, HCl, Liquid-liquid extraction, Palladium, Thiodiglycolamide",
author = "Hirokazu Narita and Motoki Maeda and Chiharu Tokoro and Tomoya Suzuki and Mikiya Tanaka and Ryuhei Motokawa and Hideaki Shiwaku and Tsuyoshi Yaita",
note = "Funding Information: The authors thank Ms. Hiroko Niiyama for her technical assistance. Part of this study was performed under the Shared Use Program of JAEA Facilities (proposal Nos. 2014A-E07 and 2014B-E08) supported by JAEA Advanced Characterization Nanotechnology Platform as a program of “Nanotechnology Platform” of the Ministry of Education, Culture, Sports, Science and Technology (MEXT), Japan. The synchrotron radiation experiments were performed on JAEA beamline BL11XU at SPring-8 (proposal Nos. 2014A3517 and 2014B3518). Publisher Copyright: {\textcopyright} 2017 The Japan Society for Analytical Chemistry.",
year = "2017",
doi = "10.2116/analsci.33.1305",
language = "English",
volume = "33",
pages = "1305--1309",
journal = "Analytical Sciences",
issn = "0910-6340",
publisher = "Japan Society for Analytical Chemistry",
number = "11",
}