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ID 19979
Eprint ID
19979
FullText URL
Author
Yamamoto, Koichi
Motomizu, Shoji
Abstract
The solvent extraction of ion association complexes of dihalogenocuprate(I) ions CuX(2)(-)(X-=chlorideb,r omide and iodide ions), with 4-(4-diethylaminophenylazo)-N-alkylpyridiniumc ations (azo-dye cations) is described: the alkyl groups of the azo-dye cations were methyl, ethyl and propyl groups. The extraction constants (K(ex)) for the ion association complexes of CuX(2)(-) and X(-) with these three azo-dye cations between an aqueous phase and several organic phases (chloroform, chlorobenzene, benzene and toluene) were determined. The extractabilities of CuX2 and X(-) were in the orders CuCl(2)(-)chlorobenzene>benzene>toluene. The difference in the value of log K(ex) between chloroform and chlorobenzene for CuX(2)(-) was much smaller than that for X(-) while between other solvents the differences in log K(ex) values for CuX(2)(-) and t were almost the same. From the extraction constants obtained, some possible extraction systems for a spectrophotometry for copper are predicted: they include one using chlorobenzene, the methyl derivative of the azo-dye, and iodide ion and one using chlorobenzene, the propyl derivative of the azo-dye and bromide ion.
Keywords
Solvent extraction
copper
dihalogenocuprate(I)-azo dye ion association complex
4-(4-diethylaminophenylazo)-N-alkylpyridinium cation
Published Date
1989-04-10
Publication Title
Analytical Sciences
Volume
volume5
Issue
issue2
Publisher
日本分析化学会
Publisher Alternative
Japan Society for Analytical Chemistry
Start Page
195
End Page
200
ISSN
0910-6340
NCID
AA10500785
Content Type
Journal Article
Official Url
http://www.journalarchive.jst.go.jp/english/jnlabstract_en.php?cdjournal=analsci1985&cdvol=5&noissue=2&startpage=195
language
英語
Copyright Holders
日本分析化学会
File Version
publisher
Refereed
True
DOI