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dc.contributor.authorLalueza Baro, Joana
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament d'Enginyeria Química
dc.date.accessioned2011-10-24T10:58:24Z
dc.date.available2011-10-24T10:58:24Z
dc.date.created1999-04
dc.date.issued1999-04
dc.identifier.citationLalueza, J. Presence of Chromium (VI) in sheepskins: influence of tanney processes. "Journal of the Society of Leather Technologists and Chemists", Abril 1999, vol. 83, p. 91-95.
dc.identifier.issn0144-0322
dc.identifier.urihttp://hdl.handle.net/2117/13646
dc.description.abstractIn this work, the results of a preliminary study on the influence exerted by neutralization, washing, ageing and vegetable retanning on chromium (VI) content in sheepskins are presented. In neutralization, the presence of chromium (VI) in skins is observed, in a concentration that depends on the pH to which they have been neutralized. However, chromium (VI) practically disappears once the skins have been fatliquored and thoroughly washed. Analysis of skins not retanned and finished exposed to UV light showed a marked increase in chromium (VI)content. By contrast, skins retanned with quebracho withstood the same conditions without noticeable quantitaties of chromium (VI) being detected. Although the analytical results were obtained using the IUC 18 Standard, an alternative procedure based on the capillary electrophoresis technique was developed to verify the results. This method allowed us to confirm the presence of considerable quantities of chromium (VI) in samples subjected to photoageing
dc.format.extent5 p.
dc.language.isoeng
dc.subjectÀrees temàtiques de la UPC::Enginyeria química
dc.subjectÀrees temàtiques de la UPC::Enginyeria química::Indústries químiques
dc.subject.lcshTanning
dc.subject.lcshHides and skins
dc.titlePresence of Chromium (VI) in sheepskins: influence of tanney processes
dc.typeArticle
dc.subject.lemacCuirs i pells
dc.subject.lemacCuirs i pells -- Anàlisi
dc.rights.accessRestricted access - publisher's policy
local.identifier.drac1242356
dc.description.versionPostprint (published version)
local.citation.authorLalueza, J.
local.citation.publicationNameJournal of the Society of Leather Technologists and Chemists
local.citation.volume83
local.citation.startingPage91
local.citation.endingPage95


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