Please use this identifier to cite or link to this item: http://nopr.niscpr.res.in/handle/123456789/46617
Title: Formation constants of binary & ternary chelates of Ln(III) with maltol & kojic acid in presence of amino carboxylic acids
Authors: Rao, M Narasimha
Omprakash, K L
Pal, A V Chandra
Reddy, M L N
Issue Date: Feb-1989
Publisher: NISCAIR-CSIR, India
Abstract: The formation constants of binary and ternary systems involving 3-hydroxy-2-methyl-4-pyrone (HMP) (maltol) and 5-hydroxy-2-hydroxymethyl-4-pyrone (HOMP) (kojic acid), with lanthanide metal ions [La(III), Pr(II), Nd(III), Gd(III), Dy(III) and Y(III)] in the presence of iminodiacetic acid (IMDA), hydroxyethyliminodiacetic acid (HIMDA) and nitrilotriacetic acid (NTA) have been determined in aqueous medium at 30°C and μ = 0.1 M (NaClO4). The order of stabilities of ternary systems is: HMP > HOMP and IMDA > HIMDA > NTA. These are explained in the light of the basi-cities of the Iigands and charge neutralisation.
Page(s): 174-175
ISSN: 0975-0975(Online); 0376-4710(Print)
Appears in Collections:IJC-A Vol.28A(02) [February 1989]

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