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Title: THE POTENTIAL COMPLEXING IMPACT OF SOME ORGANIC COMPOUNDS AMINE AND CARBOXYL GROUPS ON TRANSITION METALS
THE POTENTIAL COMPLEXING IMPACT OF SOME ORGANIC COMPOUNDS AMINE AND CARBOXYL GROUPS ON TRANSITION METALS

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Adelina Haskaj; Musaj Pacarizi; Sonja Lepitkova; Berat Sinan; Bahri Sinani; Elida Dreshaj
10.5593/sgem2024/4.1/s18.42
10.5593/sgem2024/4.1
1314-2704
978-619-7603-71-2
English
24
4.1
•    Prof. DSc. Oleksandr Trofymchuk, UKRAINE 
•    Prof. Dr. hab. oec. Baiba Rivza, LATVIA
18.Recycling
Environmental water chemistry is substantially aided by modern electrochemical research. Sensitive voltammetric techniques are much more useful for metal species in natural waters, where complexation with organic molecules predominates. Many environmental electrochemists are still interested in determining the stability constants of metal ion complexes with various ionic species found in natural waterways. The aim of this work is to investigate the possible influence of complexation of amine and carboxyl groups of some organic molecules (with EDTA, NTA and aniline, using differential pulse polarography). The Differential Pulsed Polarography (DPP) is experimental technique that consist on three-electrode electrochemical cell of: working electrode (SMDE "Static Mercury Drop Electrode"), reference electrode (Ag/AgCl electrode) and auxiliary electrode (graphite electrode). In our research we have followed the polarographic waves of metal ions (Men+), in constant concentration (C=1x10-4 mol/dm3) titrating in perchlorate solution with complexing agents: aniline, NTA and EDTA, in concentrations from C 1x10-5 to 1x0-3 mol.dm-3, at two pH values (pH = 4 and pH = 6). To prove the competition of organic ligands in the complexion of metal ions (Men+) we have prepared solutions by completely complexing the metal ions with aniline and then we have gradually added the strongest complexing agents NTA and EDTA.
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https://doi.org/10.5593/sgem2024/4.1/s18.42
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Proceedings of 24th International Multidisciplinary Scientific GeoConference SGEM 2024
24th International Multidisciplinary Scientific GeoConference SGEM 2024, 1 - 7 July, 2024
Proceedings Paper
STEF92 Technology
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SWS Scholarly Society; Acad Sci Czech Republ; Latvian Acad Sci; Polish Acad Sci; Russian Acad Sci; Serbian Acad Sci and Arts; Natl Acad Sci Ukraine; Natl Acad Sci Armenia; Sci Council Japan; European Acad Sci, Arts and Letters; Acad Fine Arts Zagreb Croatia; Croatian Acad Sci and Arts; Acad Sci Moldova; Montenegrin Acad Sci and Arts; Georgian Acad Sci; Acad Fine Arts and Design Bratislava; Russian Acad Arts; Turkish Acad Sci.
315-322
1 - 7 July, 2024
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complexation, stability constants , EDTA, NTA

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