A Study on P-Substituted Phenylhydrazones of Pyruvic Acid With Some Alkaline-Earth Metal Ions

D. Muralidhar Rao, E. Kodanda Ramaiah and Kashi Ram

Department of Chemistry, Osmania University, Hyderabad - 500 007 India.

ABSTRACT:

The binary and ternary stability constants of metal chelates derived from p-substituted phenylhydrazones of pyruvic acid, viz., 2-(phenylhydrazono) propanoic acid (PHP), and 2-(p-nitro-phenylhdrazono) propanoic acid (NPP) with some alkaline-earth metal ions, i.e., Mg (II), Ca (II), Sr(ll) and Ba(ll) involving some other chelating agents like catechol, salicylic acid, ethylenediamine, 1,10* phenanthroline, proline, hydroxyproline, β-alanine„ and glycine have been determined potentiometrically at 30 °C and 0.10 M (KNO ) ionic strenght by employing Irving-Rossotti and Santappa-Ramamoorthy methods in 40% (v/v) ethanol-water medium,. In presence of PNP or NPP, SA and phen act as primary ligands while all others function as secondary ones.

KEYWORDS:

p-substituted; phenylhydrazones; p-nitro-phenylhdrazono; Alkaline-Earth Metal Ions

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Copy the following to cite this article: Rao D. M, Ramaiah E. K, Ram K. A Study on P-Substituted Phenylhydrazones of Pyruvic Acid With Some Alkaline-Earth Metal Ions. Orient J Chem 1995;11(1).

Copy the following to cite this URL: Rao D. M, Ramaiah E. K, Ram K. A Study on P-Substituted Phenylhydrazones of Pyruvic Acid With Some Alkaline-Earth Metal Ions. Orient J Chem 1995;11(1). Available from:http://www.orientjchem.org/?p=38023