Determination of the Stability Constant of Vanadium (V) with Alaine

Determination of the Stability Constant of Vanadium (V) with Alaine

Formation equilibria of dioxy vanadium (V) complex with alanine in acidic media (pH<2.3) has been investigated potentiometrically and spectrophotometrically. In this condition the 1:1 complex has the formula VO2Y, where Y¯ represent the fully dissociated aminocarboxylate anion. The stability cons...

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Bibliographic Details
Main Authors: Saeed Abedini Khorrami, Farrokh Gharib, Karim Zare, Hossein Aghai
Format: Article
Language:English
Published: Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR 1992-12-01
Series:Iranian Journal of Chemistry & Chemical Engineering
Subjects:
stability constant
sodium meta vanadate
alanine
dioxy vanadium complexes
vanadium aminocarboxylates
Online Access:http://www.ijcce.ac.ir/article_10956_d41d8cd98f00b204e9800998ecf8427e.pdf
Description
Summary:Formation equilibria of dioxy vanadium (V) complex with alanine in acidic media (pH<2.3) has been investigated potentiometrically and spectrophotometrically. In this condition the 1:1 complex has the formula VO2Y, where Y¯ represent the fully dissociated aminocarboxylate anion. The stability constant of VO2Y was determined as log KVO2Y=11.32±0.35 at 25±0.1 °C and I=1 mol per liter of sodium perchlorate. The protonation constant of alanine was also determined poteniumetrically under above condition.
ISSN:1021-9986
1021-9986

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