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Antifungal activities against mould and yeast strains / Meral Birbir in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 80, N° 4 (07-08/1996)
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Titre : Antifungal activities against mould and yeast strains Type de document : texte imprimé Auteurs : Meral Birbir, Auteur ; O. Özyaral, Auteur ; C. Johansson, Auteur ; A. Ilgaz, Auteur Année de publication : 1996 Article en page(s) : p. 114-117 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : The efficacy of three commercially available fungicides was determined on 20 fungal species and nine yeast species isolated from Turkish vegetable tanned sole leathers, chrome tanned hides (blue stock), 1-2 years and older chrome tanned leather, new and used shoes, and human feet. Each of the isolated organisms, whether fungi or yeast were treated with a series of dilutions of the fungicides to determine their relative effectiveness.
The active ingredients of the commercially available fungicides were : isotiazoline and a quaternary ammonium compound (Fungicide 1A), benzthiazole (Fungicide B), and p-chloro-m-cresol with o-phenylphenol (Fungicide C). Fungal attack was controlled with fungicide A at a 1:16 dilution, fungicide C were more effective than fungicide B in controlling fungal growth on leather. Fungicide A at 1:128 dilution, fungicide B at 1:64 dilution and fungicide C at 1:128 dilution exerted complete protection against yeast growth.En ligne : https://drive.google.com/file/d/1suUFroIcVc9jJ25z22d1vlsbATbsDtOp/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=8122
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 80, N° 4 (07-08/1996) . - p. 114-117[article]Réservation
Réserver ce documentThe long-term stability of sodium percarbonate in presence of zeolite as measured by heat flow calorimetry / C. Johansson in TENSIDE, SURFACTANTS, DETERGENTS, Vol. 44, N° 4/2007 (08-09/2007)
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Titre : The long-term stability of sodium percarbonate in presence of zeolite as measured by heat flow calorimetry Type de document : texte imprimé Auteurs : C. Johansson, Auteur ; P. Pekonen, Auteur ; D. Forsström, Auteur Année de publication : 2007 Article en page(s) : p. 210-217 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Agents de blanchiment
Calorimétrie
Peroxyde d'hydrogèneLe peroxyde d'hydrogène (H2O2), communément appelé eau oxygénée ou encore perhydrol (appellation industrielle), est un composé chimique liquide et visqueux, aux puissantes propriétés oxydantes (il est aussi réducteur). C'est donc un agent blanchissant efficace qui sert de désinfectant et (à haute concentration) d'oxydant ou monergol dans les fusées spatiales.
Sodium -- Composés organiques
Sodium -- Composés organiques -- Stabilité
ZéolitesTags : Sodium percarbonate 15630-89-4 Index. décimale : 668.1 Agents tensioactifs : savons, détergents Résumé : Heat flow calorimetry has been evaluated as an alternative technique to conventional stability testing of sodium percarbonate [15630-89-4] (SPC) based on analysis of the hydrogen peroxide content. Stability tests were performed with different SPC samples as well as under various experimental conditions. In general, stable samples exhibiting high concentration of hydrogen peroxide were accompanied by low heat flow values. It was found that the results obtained by heat flow calorimetry and conventional stability testing were in agreement. It was also demonstrated that the long-term stability could be predicted from heat flow data obtained during the initial stage of decomposition. Furthermore, different manufacturing and experimental conditions were manifested as a change of the heat flow curve. The results indicate that the rate of heat production is closely associated with the stability of sodium percarbonate, i.e. the rate of decomposition of sodium percarbonate. In presence of zeolite the stability of sodium percarbonate was reduced, particularly under humid conditions. DOI : 10.3139/113.100340 Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=3207
in TENSIDE, SURFACTANTS, DETERGENTS > Vol. 44, N° 4/2007 (08-09/2007) . - p. 210-217[article]Réservation
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