| Titre : |
Chromium (VI) formation : thermal studies on chrome salt and chrome tanned hide powder |
| Type de document : |
texte imprimé |
| Auteurs : |
N. N. Fathima, Auteur ; Balachandran Unni Nair, Auteur ; Jonnalagadda Raghava Rao, Auteur |
| Année de publication : |
2001 |
| Article en page(s) : |
p. 444-450 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Index. décimale : |
675 Technologie du cuir et de la fourrure |
| Résumé : |
In recent times, there has been an upsurge of several reports on the detection of chromium(VI) in leather when tanning was carried out with chromium(III) salts. Various possibilities have been cited for the formation of chromium(VI) in leather. The factors which could bring about the oxidation of chromium(III) to chromium(VI) are photo ageing, thermal ageing and high pH conditions. In this study, the possibility of basic chromium sulphate (BCS) as a source for formation of chromium(VI) in leather has been explored. Thermal studies on BCS and chrome tanned hide powder were carried out at different time intervals. It was observed that oxidation of chromium(III) to chromium(VI) in BCS and chrome tanned hide powder occurred under high temperature conditions. Thus, the influence of temperature on the formation of chromium(VI) has been established. |
| En ligne : |
https://drive.google.com/file/d/13U_6dnsbO1MS6QmgOkceMyt5ztHNyGLd/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=4351 |
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. XCVI, N° 11 (11/2001) . - p. 444-450
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Chromium (VI) formation : thermal studies on chrome salt and chrome tanned hide powder in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. XCVI, N° 11 (11/2001)
