Effect of 4(2)-Octylaminopyridine Distribution in a Water (HCl)/Chloroform System on the Extraction of Metal Ions from Chloride Solutions
Russian Journal of Physical Chemistry A, ISSN: 1531-863X, Vol: 93, Issue: 5, Page: 828-834
2019
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Article Description
Abstract: Distributions of 4(2)-octylaminopyridines (4(2)-OAPs) as extractants in an HO(HCl)/CHCl system were studied by UV and IR spectroscopy and potentiometry. The ionization constant of monoprotonated 4-OAP, the logarithmic distribution constant of 4-OAP and its chloride, and the logarithmic extraction constant of hydrochloric acid were calculated. These values were compared with those for 2-OAP. The isotherm (20 ± 2°C) of HCl extraction with 0.1 M 4-OAP in chloroform is given. The difference in the extraction chemistry of hydrochloric acid with 2- and 4-OAPs and specific application features of these reagents for extraction of metals from chloride solutions are discussed.
Bibliographic Details
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=85066496993&origin=inward; http://dx.doi.org/10.1134/s0036024419050066; http://link.springer.com/10.1134/S0036024419050066; http://link.springer.com/content/pdf/10.1134/S0036024419050066.pdf; http://link.springer.com/article/10.1134/S0036024419050066/fulltext.html; https://dx.doi.org/10.1134/s0036024419050066; https://link.springer.com/article/10.1134/S0036024419050066
Pleiades Publishing Ltd
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