ISSN print edition: 0366-6352
ISSN electronic edition: 1336-9075
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New complexanes. XXXV. Properties of 1,2-diaminooctane-N,N,N',N'-tetraacetic acid

J. Majer, P. Butvin, V. Novák, M. Svičeková, E. Füleová, I. Valášková, and J. Novák

Department of Analytical Chemistry, Faculty of Pharmacy, Komenský University, 880 34 Bratislava

 

Abstract: The acid-base and complexing properties of the new chelate-forming agent ODTA were studied by using potentiometric and polarog. methods as well as paper electrophoresis. The dissocn. consts. of this multidentate ligand and the stability consts. of its chelates with 25 bivalent and trivalent cations including the alk. earth ions and lanthanides detd. at Ic = 0.10 (KNO3) and 295 K are given. The properties of ODTA are compared with those of structurally analogous substances of the EDTA and DCTA complexon type. ODTA invariably forms more stable chelates than EDTA, which stabilities are comparable to those of the DCTA.

Full paper in Portable Document Format: 336a742.pdf

 

Chemical Papers 33 (6) 742–748 (1979)

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