Liquid-liquid extraction of copper(II) with cyclic and acyclic tetrathioethers
The liquid-liquid extraction of copper(II) with cyclic and acyclic tetrathioethers (L) into 1,2-dichloroethane was examined. When hexanitrodiphenylamine ion (A −) was used as the counter anion, the extracted species [Cu(II)L(OH)] + A − was predominant at pH > 6.0. The logarithmic extraction const...
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Veröffentlicht in: | Analytica chimica acta 1991-08, Vol.248 (2), p.511-515 |
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Hauptverfasser: | , |
Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | The liquid-liquid extraction of copper(II) with cyclic and acyclic tetrathioethers (L) into 1,2-dichloroethane was examined. When hexanitrodiphenylamine ion (A
−) was used as the counter anion, the extracted species [Cu(II)L(OH)]
+ A
− was predominant at pH > 6.0. The logarithmic extraction constants log
k
ex were 14.65 and 14.88 for the cyclic tetrathiatetradecane and the corresponding acyclic tetrathiapentadecane, respectively. |
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ISSN: | 0003-2670 1873-4324 |
DOI: | 10.1016/S0003-2670(00)84669-3 |