Platinum(IV) extraction by N,N '-dipentylethylenediamine-N '-thiocarbaldehyde from hydrochloric acid solutions

Authors
Khisamutdinov, RA Potapov, VV Murinov, YI Krivonogov, VP
Citation
Ra. Khisamutdinov et al., Platinum(IV) extraction by N,N '-dipentylethylenediamine-N '-thiocarbaldehyde from hydrochloric acid solutions, RUSS J IN C, 46(3), 2001, pp. 446-449
Citations number
6
Categorie Soggetti
Inorganic & Nuclear Chemistry
Journal title
RUSSIAN JOURNAL OF INORGANIC CHEMISTRY
ISSN journal
00360236 → ACNP
Volume
46
Issue
3
Year of publication
2001
Pages
446 - 449
Database
ISI
SICI code
0036-0236(200103)46:3<446:PEBN''>2.0.ZU;2-8
Abstract
Platinum(IV) extraction by dipentylethylenediamine-N'-thiocarbaldehyde (L) from HCl solutions at 25 degreesC was studied. An extraction equilibrium is found to be established within one minute. Platinum(IV) ions are extracted from 0.1 M HCl solutions (with toluene or chloroform as a diluent) by an a nion-exchange-solvation mixed mechanism in the form of a mixture of complex es (LH+)(2)[PtCl6](2-) and trans-PtCl4(L . HCl)(2). Apparent extraction con stants were determined. Changes in the thermodynamic functions of extractio n were calculated from the temperature dependences.