Complex formation of maleic acid with the Zn2+, Ni2+, Co2+, Cu2+ in aqueous solution

• Published in: Russian journal of coordination chemistry Vol. 34; no. 2; pp. 93 - 96
• Main Authors: Bychkova, S. A., Katrovtseva, A. V., Kozlovskii, E. V.
• Format: Journal Article
• Language: English
• Published: Dordrecht SP MAIK Nauka/Interperiodica 01-02-2008
• Subjects: Chemistry; Chemistry and Materials Science; Inorganic Chemistry; Physical Chemistry; Stability Constant; Potentiometric Titration; Coordination Chemistry; Maleic Acid; Supporting Electrolyte
• ISSN: 1070-3284; 1608-3318
• DOI: 10.1134/S1070328408020036

The process of complex formation of maleic acid (H
2
L) with the ions Zn
2+
, Ni
2+
, Co
2+
, Cu
2+
was studied by potentiometric titration in a wide range of concentration ratios at 298 K and
I
= 0.1 mol/l (NaNO
3
). The moieties ZnL, CoL, NiL, NiL
2
2−
, CuL, and CuL
2
2−
were detected and their stability constants were determined.