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From compressibility to structural investigation of sodium dodecyl sulphate — Part 1: Powder and tablet physico-chemical characteristics

Chantraine, Florence and Viana, Marylène and Cazalbou, Sophie and Brielles, Nelly and Mondain-Monval, Olivier and Pouget, Christelle and Branlard, Paul and Rubinstenn, Gilles and Chulia, Dominique From compressibility to structural investigation of sodium dodecyl sulphate — Part 1: Powder and tablet physico-chemical characteristics. (2007) Powder Technology, vol. 177 (n° 1). pp. 34-40. ISSN 0032-5910

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Official URL: http://dx.doi.org/10.1016/j.powtec.2007.02.027

Abstract

As a part of a study on detergent tablets, investigations were carried out to elucidate the compression behavior of a powdered surfactant, sodium dodecyl sulphate (SDS), based on a comparison with the main component of the formulation, i.e. the chorine provider (DCCNa). The compacted SDS exhibited poor cohesion as well as delayed dissolution whatever the compression pressure. The microscopic observations and the mercury porosimetry measurements both demonstrated that a residual porosity existed in the tablets but the dissolution times were always long. A modification of SDS in contact with water, forming a structure like a gel, probably occurred, inducing the closing of the pores and thereby limiting the water intrusion into the tablets.

Item Type:Article
Additional Information:Thanks to Elsevier editor. The definitive version is available at http://www.sciencedirect.com The original PDF of the article can be found at Thermochimica Acta website : http://www.sciencedirect.com/science/journal/00406031
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:Other partners > Eurotab (FRANCE)
Other partners > Université de Limoges - UNILIM (FRANCE)
French research institutions > Centre National de la Recherche Scientifique - CNRS
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Deposited By:Celine Cabaup

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