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Title

Extraction of AuCl4- from HCl solutions by the chloride salt of the secondary amine Amberlite LA2 and estimation of the interaction coefficient between AuCl4- and H+

AuthorsAlguacil, Francisco José; Martínez, Susana; Sastre, Ana María
KeywordsAuC14
Amberlite LA2
Issue DateSep-2001
PublisherScience Reviews Limited
CitationJournal of Chemical Research 9 : 384-386 (2001)
AbstractThe equilibrium distribution of AuCl4- between hydrochloric acid and the chloride salt of the secondary amine Amberlite LA2 in xylene was investigated. The extraction reaction is exothermic (ΔH° = -20.8 kJ/mol). The stoichiometry of the complex formed in the organic phase can be represented by R'R''NHH+AuCl4- and the extraction equilibrium constant depends on the ionic strength. From this dependency it was found that log K° = 3.9 and the interaction coefficient between AuCl4- and H+ is 0.24.
Publisher version (URL)http://dx.doi.org/10.3184/030823401103170179
URIhttp://hdl.handle.net/10261/43802
DOI10.3184/030823401103170179
ISSN1747-5198
Appears in Collections:(CENIM) Artículos
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