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Extended X-ray absorption fine structure studies of the role of chromium in leather tanning

Chadwick, Alan V., Lampard, Graham S., O'Brien, Paul, Rafeletos, Georgios, Covington, Anthony D., Menderes, Ozlem (2001) Extended X-ray absorption fine structure studies of the role of chromium in leather tanning. Polyhedron, 20 (5). pp. 461-466. ISSN 0277-5387. (doi:10.1016/S0277-5387(00)00611-2) (Access to this publication is currently restricted. You may be able to access a copy if URLs are provided) (KAR id:9399)

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Extended X-ray absorption fine structure (EXAFS) spectroscopy has been used to study basic chromium(III) sulphate salts as used for tanning collagen and samples of leathers tanned with such salts. The baths containing the leathers were adjusted to a solution pH of 4 by the addition of sodium carbonate at the end of the tanning reaction mimicking the way the process is conducted industrially. In the experimental leather samples, linear tetrameric chromium species appear to predominate with the collagen matrix. The chromium atoms are surrounded, on average by six nearest neighbour oxygen atoms, two chromium atoms are the next nearest neighbours and there are approximately six oxygen atoms in the next coordination sphere; the latter at the limits of experimental determination by EXAFS.

Item Type: Article
DOI/Identification number: 10.1016/S0277-5387(00)00611-2
Subjects: Q Science
Divisions: Divisions > Division of Natural Sciences > Physics and Astronomy
Depositing User: Alan Chadwick
Date Deposited: 09 Oct 2008 14:55 UTC
Last Modified: 16 Nov 2021 09:47 UTC
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University of Kent Author Information

Chadwick, Alan V..

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