Extraction of palladium(II) with (RS)-1-[2-(2,4-dichlorophenyl)pentyl]-1H-1,2,4-triazole from nitric acid solutions
- Authors: Anpilogova G.R.1, Khisamutdinov R.A.1, Golubyatnikova L.G.1, Murinov Y.I.1
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Affiliations:
- Ufa Institute of Chemistry
- Issue: Vol 87, No 1 (2017)
- Pages: 132-138
- Section: Article
- URL: https://journals.rcsi.science/1070-3632/article/view/218014
- DOI: https://doi.org/10.1134/S1070363217010212
- ID: 218014
Cite item
Abstract
Palladium(II) is efficiently extracted with (RS)-1-[2-(2,4-dichlorophenyl)pentyl]-1H-1,2,4-triazole from 0.2–5.0 M HNO3 solutions and can be selectively separated from Ni(II), Cu(II), Pb(II), Fe(III), and Ag(I) in the acidity range specified, as well as from lanthanides(III) in 2–4 M HNO3 solutions. The extraction of Pd(II) from 1 M HNO3 solution proceeds via coordination mechanism; this is an endothermic process in the 10–30°C temperature range. Palladium(II) is completely stripped with a nitric acid solution of thiourea or with 3–4 M NH4OH solution.
Keywords
About the authors
G. R. Anpilogova
Ufa Institute of Chemistry
Author for correspondence.
Email: hisam@anrb.ru
Russian Federation, pr. Oktyabrya 71, Ufa, 450054
R. A. Khisamutdinov
Ufa Institute of Chemistry
Email: hisam@anrb.ru
Russian Federation, pr. Oktyabrya 71, Ufa, 450054
L. G. Golubyatnikova
Ufa Institute of Chemistry
Email: hisam@anrb.ru
Russian Federation, pr. Oktyabrya 71, Ufa, 450054
Yu. I. Murinov
Ufa Institute of Chemistry
Email: hisam@anrb.ru
Russian Federation, pr. Oktyabrya 71, Ufa, 450054