| Titre : |
Improved rust removal by addition of environmentally friendly sodium glucoheptonate to the cleaning agent |
| Type de document : |
texte imprimé |
| Auteurs : |
Jan Seetz, Auteur ; A. Bouwman, Auteur ; John Rowland, Auteur |
| Année de publication : |
2016 |
| Article en page(s) : |
p. 58-62 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Chélates
Corrosion
Détergents
Glucoheptonate de sodium
Hydroxydes métalliques
Nettoyage
Nettoyage industriel
Taches
|
| Index. décimale : |
668.1 Agents tensioactifs : savons, détergents |
| Résumé : |
Water with iron content forms yellowish discolourations on textiles, while brown-coloured deposits of iron(111) hydroxide oc-IN cur on surfaces, such as appear in bottle cleaning and in industrial cleaning (CIP), as well as in toilet bowls in the domestic setting. Rust spots on textiles arise from bloodspots by decomposition of iron-containing haemoglobin.
Sodium glucoheptonate is not a chelant agent but a sequestrant, and is also a very effective crystal growth and agglomeration inhibitor for metal hydroxides. From the acid up to the strong alkaline range, easily water-soluble oligomers of multivalent metal hydroxides will be formed. This applies to the removal of rust, because oligomeric iron hydroxide [Fe(0H)3]n is sequestrated by sodium glucoheptonate, which is not deposited. Sodium glucoheptonate also applies to other metal hydroxides (e.g., hydroxi¬des of Al, Cu, Mn and Mg). The precipitates that occur with these metals, as a result of hydroxide formation in alkaline cleaning processes, reduce the effectiveness of cleaning by forming spots or re-depositions of released metal hydroxides and lead to turbidities in liquid detergents with high pH-values during product storage. |
| Note de contenu : |
- Rust and rust spots
- Properties of sodium glucoheptonate
- Mode of action of sodium glucoheptonate
- Application of dissolvine CSA
- Bottle washing
- Industrial cleaning
- Institutional laundry
- Liquid cleaning agents with high pH-value |
| En ligne : |
https://drive.google.com/file/d/1DAXaTS7Mb3W0Y2cfvmPKo0uNfXBFwW93/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=26693 |
in SOFW JOURNAL > Vol. 142, N° 4 (04/2016) . - p. 58-62
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