| Titre : |
Mixtures of trisodium citrate anhydrous and dihydrate as builders in diswashing detergents - Effects on tablet stability and disintegration |
| Type de document : |
texte imprimé |
| Auteurs : |
Katharina Mück, Auteur ; Sandra Rotermund, Auteur ; Felix Weiher, Auteur |
| Année de publication : |
2021 |
| Article en page(s) : |
p. 34-38 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Citrate trisodique
Détergents -- Additifs
Emballages en matières plastiques
Polypropylène
Résistance à la rupture
Stabilité au stockage
Vaisselle -- Nettoyage
|
| Index. décimale : |
668.1 Agents tensioactifs : savons, détergents |
| Résumé : |
Trisodium citrate is an ecologically friendly, non-toxic alternative to phosphorus-based builders in automatic dishwashing detergent (ADWD) tablets. It exists in two forms: trisodium citrate dihydrate (TSC), which contains two water molecules in the crystal, and trisodium citrate anhydrous (TSA). The latter is produced by removing the water of crystallisation from the crystalline matrix, thus creating a porous structure. TSA can be loaded with liquid substances and will remain a free-flowing powder because of these pores. In the present analysis, the effects of TSC, TSA and mixtures thereof on critical tablet parameters, such as disintegration and stability, were examined. The study shows that replacing part of the TSC in the formulation with TSA decreases disintegration time and increases breaking strength after tablet pressing. This finding is supported by an existing patent (EP 3 431 575), which additionally shows that mixtures of TSA and TSC improve tablet cleaning performance. Furthermore, the present study demonstrates that the storage stability in polypropylene packaging of tablets containing TSA/TSC mixtures is comparable to that of tablets which only use TSC as the builder. Thus, TSA and TSC are not only eco-friendly builders, but can be used to modulate tablet disintegration time and stability as needed. |
| Note de contenu : |
- Experimental procedure
- Results : Mixing TSA and TSC accelerates tablet disintegration
- TSA increases breaking strenght
- Equally good storage stability in polypropylene
- Fig. 1 : effect on tablet disintegration time of using TSA, TSC and mixtures thereof as builders
- Fig. 2 : Marked crack formation during disintegration of tablets with TSA/TSC mixtures as builders
- Fig. 3 : Replacing part of the TSC with TSA improves tablet breaking strength after pressing
- Fig. 4 : The choice of TSA, TSC or mixtures thereof as builders has no impact on storage stability in polypropylene packaging
- Table 1 : ADWD tablet formulation |
| En ligne : |
https://drive.google.com/file/d/1oMs2OG751NSlzhZUgeQUCvSI0cTYFnzT/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=35892 |
in SOFW JOURNAL > Vol. 147, N° 5 (05/2021) . - p. 34-38
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Mixtures of trisodium citrate anhydrous and dihydrate as builders in diswashing detergents - Effects on tablet stability and disintegration in SOFW JOURNAL, Vol. 147, N° 5 (05/2021)
