| Titre : |
Surfactant-loaded-citrate - A winning combination for automatic diswashing detergents |
| Type de document : |
texte imprimé |
| Auteurs : |
Sandra Hübner, Auteur ; Felix Weiher, Auteur ; Dominik Buser, Auteur |
| Année de publication : |
2018 |
| Article en page(s) : |
p. 44-48 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Citrate de sodium
Détergents
Surfactants
Vaisselle -- Nettoyage
|
| Index. décimale : |
668.1 Agents tensioactifs : savons, détergents |
| Résumé : |
Since the EU regulation on phosphorus limitation in automatic dishwashing detergents (ADWDs) entered into force in January 2017, sodium citrates have become a well-established alternative to phosphates as environmentally friendly builders for ADWDs. An innovative alternative to the commonly used sodium citrate dihydrate (TSC) is the anhydrous form of sodium citrate (ISA) which has an active content of 100%. TSA has excellent tableting properties and can be used as a carrier for liquid active substances due to its porous structure. In that regard, surfactants are of special interest because they are often liquid or waxy and therefore represent a particular challenge in dry formulations (e.g. tablets). An advantageous combination of the two active substances can be achieved by loading TSA with surfactants. Loading TSA with surfactants shows that free-flowing TSA-surfactant powder can be produced. This loading step allows for easy handling of raw materials and, in the final application, excellent tablet properties.I |
| Note de contenu : |
- INTRODUCTION : Automatic diswashing detergents - Trisodium citrate anhydrous - Surfactant-loaded-citrate
- TESTS AND RESULTS : Powder and tablet characteristics
- FIGURES : 1. Microscope image of a trisodium citrate anhydrous particle and a trisodium citrate dihydrate particle - 2. SEM pictures of TSA particles and loaded with surfactant 1 - 3. Breaking of tablets prepared according to the formulations listed in Tab. 1 - 4. Friability of tablets prepared according to the formulations listed in Tab. 1 (test according to EuAB 8.0) ("tablets of formulation A with press force 20 kN were broken) - 5. Disintegration time of tablets prepared according to the formulations listed in Tab. 1 Test procedure : measurement of the time until the tablet disintegrates in a rigid frame with a porous bottom and mesh size of 2 mm, which is raised and lowered evenly in 45°C water (test according to EuAB 8.0)
- TABLE : Formulation - ADWD formulations for tablet characterisations |
| En ligne : |
https://drive.google.com/file/d/1ut2QXZ4kEzbMUP3ryhyuJP0QNIZp1c9A/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=30356 |
in SOFW JOURNAL > Vol. 144, N° 3 (03/2018) . - p. 44-48
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Surfactant-loaded-citrate - A winning combination for automatic diswashing detergents in SOFW JOURNAL, Vol. 144, N° 3 (03/2018)
