Kinetic studies on the formation of metal chelates. IV. Formation of chromium(III)‐ethylenediaminetetraacetate complexes from tris (oxalato)chromate(III) and ethylenediaminetetraacetate in alkaline media | Zendy

Banerjea D. | Zendy; Chaudhuri P. | Zendy

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Kinetic studies on the formation of metal chelates. IV. Formation of chromium(III)‐ethylenediaminetetraacetate complexes from tris (oxalato)chromate(III) and ethylenediaminetetraacetate in alkaline media

Author(s) -

Banerjea D.,

Chaudhuri P.

Publication year - 1970

Publication title -

zeitschrift für anorganische und allgemeine chemie

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.354

H-Index - 66

eISSN - 1521-3749

pISSN - 0044-2313

DOI - 10.1002/zaac.19703720219

Subject(s) - chemistry , chromium , chromate conversion coating , chelation , ionic strength , tris , metal , inorganic chemistry , ion , aqueous solution , organic chemistry , biochemistry

The rate of formation of Cr(III)‐EDTA complexes from Cr(C 2 O 4 ) 3 3−and EDTA at pH ca. 8–9.5 has been determined spectrophotometrically. From the observed dependence of the rate on pH and EDTA concentration a probable mechanism has been suggested for the overall change involving two concurrent paths; corresponding δH ≠ and δS ≠ values have also been determined. An increase in ionic strength has been found to increase the overall rate as well as that of each individual path as is expected in a reaction between ions of the same charge type.

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