Composition and stability of lead(II) compounds with N-(carboxymethyl)aspartic and N,N-bis(carboxymethyl)aspartic acids in aqueous solutions

Author： Lytkin A.   Chernyavskaya N.   Nikol’skii V.  

Publisher： MAIK Nauka/Interperiodica

ISSN： 1070-3284

Source： Russian Journal of Coordination Chemistry, Vol.33, Iss.6, 2007-06, pp. : 400-402

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Abstract

The reactions of N-(carboxymethyl)aspartic (H3Y) and N,N-bis(carboxymethyl)aspartic (H4X) acids with Pb2+ ions were studied by potentiometric titration at 298.15 K and I = 0.2, 0.5, and 1.0 (KNO3). The formation of complex species PbY−, PbHX−, and PbX2− was found and their stability constants were calculated.

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