Complejos de V(III) en solución acuosa con el ácido aminopolicarboxílico CDTA

Autor: Lino Hernández, Giuseppe Lubes, Mildred Rodriguez, Lorenzo Echevarria, Vito Lubes
Jazyk: English<br />Spanish; Castilian
Rok vydání: 2011
Předmět:
Zdroj: Avances en Química, Vol 6, Iss 3, Pp 95-99 (2011)
Druh dokumentu: article
ISSN: 1856-5301
Popis: Electromotive forces measurements emf (H) were employed to study the formation of the Vanadium(III) complexes with the aminopolycarboxylic acid trans-1,2-diaminocyclohexane-N,N,N',N'-tetraethanoic (CDTA, H4L) in aqueous solution at 25 °C in 3.0mol.L-1 KCl as the ionic media. The analysis of the potentiometric data by means of the least-squares computational program LETAGROP, indicates the formation of significant quantities of the complexes [VHL], [VL]- and [V(OH)L]2- together with their respective stability constants of each complex. In addition to the LETAGROP analysis UV-Vis spectrophotometric measurements were done in order to make a qualitative characterization of the complexes formed in aqueous solution
Databáze: Directory of Open Access Journals