Encyclopedia of Metalloproteins

2013 Edition
| Editors: Robert H. Kretsinger, Vladimir N. Uversky, Eugene A. Permyakov

Chromium and Leather

  • Sreeram Kalarical Janardhanan
  • Raghava Rao Jonnalagadda
  • Balachandran Unni Nair
Reference work entry
DOI: https://doi.org/10.1007/978-1-4614-1533-6_21

Synonyms

Definition

The process of conversion of hides/skins which putrefy within hours of death of an animal to a commodity meeting the lifestyle, aesthetic, and fashion requirements of the user is described by the term “tanning.” Chromium(III) ions based tanning owing to the kind of thermal stability and customer preferred properties that it confers is the most predominant methodology. It has been an intriguing factor to leather chemists as to why other metal ions or natural polyphenols are not able to match the properties conferred by chromium(III). Tanner, in the past, has been challenged by the poorer uptake and hence the release of chromium into the wastewaters. A reasonable understanding of the type of chromium(III) species found in tanning solutions, their interaction with collagen, the species present in the spent solutions, etc., has now been possible. Methodologies for overcoming the poorer uptake of chromium by the skin matrix, employing the principles...

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References

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Copyright information

© Springer Science+Business Media New York 2013

Authors and Affiliations

  • Sreeram Kalarical Janardhanan
    • 1
  • Raghava Rao Jonnalagadda
    • 1
  • Balachandran Unni Nair
    • 1
  1. 1.Chemical LaboratoryCentral Leather Research Institute (Council of Scientific and Industrial Research)ChennaiIndia