The method of appearing solvent: Extraction of metal ions from aqueous solutions into in situ forming ionic liquid


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Abstract

The simultaneous dissolution of tetraoctylammonium bromide and sodium N-lauroyl sarcosinate in water leads to the in situ formation of a water-immiscible ionic liquid, tetraoctylammonium N-lauroyl sarcosinate. The new phase formed can extract cadmium, cobalt, copper, nickel, lead, and zinc ions from aqueous solution in the presence of 4-(2-pyridylazo)resorcinol (PAR), while it can extract cadmium ions in the absence of PAR.

About the authors

S. V. Smirnova

Moscow State University

Author for correspondence.
Email: sv_v_smirnova@mail.ru
Russian Federation, Moscow, 119991

T. O. Samarina

Moscow State University

Email: sv_v_smirnova@mail.ru
Russian Federation, Moscow, 119991

D. V. Il’in

Moscow State University

Email: sv_v_smirnova@mail.ru
Russian Federation, Moscow, 119991

I. V. Pletnev

Moscow State University

Email: sv_v_smirnova@mail.ru
Russian Federation, Moscow, 119991

Yu. A. Zolotov

Moscow State University

Email: sv_v_smirnova@mail.ru
Russian Federation, Moscow, 119991

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