Pre-nucleation cluster formation upon ethyl acetate addition to an aqueous solution of an anionic hydrotrope - Archive ouverte HAL Access content directly
Journal Articles Journal of Molecular Liquids Year : 2020

Pre-nucleation cluster formation upon ethyl acetate addition to an aqueous solution of an anionic hydrotrope

(1) , (2) , (2) , (1) , (3) , (2) , (2) , (1)
1
2
3

Abstract

Hydrotropes are used to solubilize poorly soluble solutes. Here the general features of the solution behaviour of the very common anionic hydrotrope sodium salicylate is investigated. With the use of density and scattering measurements, it is demonstrated that around the critical point neither pre-Ouzo structuring nor an Ouzo effect are present. By contrast, in a domain near the liquid-solid phase boundary, X-ray light and neutron scattering combined with a density excess determination prove the presence of dynamic aggregates. These aggregates are stabilized without any surfactants, but by selective solvation of ethyl acetate, reminiscent of stable liquid pre-nucleation aggregates. And most surprising: in water saturated by ethyl acetate (20% wt), sodium salicylate micellizes like a medium chain classical surfactant.
Fichier principal
Vignette du fichier
S0167732220311752.pdf (1.32 Mo) Télécharger le fichier
Origin : Files produced by the author(s)

Dates and versions

cea-02561827 , version 1 (22-08-2022)

Licence

Attribution - NonCommercial - CC BY 4.0

Identifiers

Cite

Asmae El Maangar, Pierre Degot, Verena Huber, Jérémy Causse, Patrick Berthault, et al.. Pre-nucleation cluster formation upon ethyl acetate addition to an aqueous solution of an anionic hydrotrope. Journal of Molecular Liquids, 2020, 310, pp.113240. ⟨10.1016/j.molliq.2020.113240⟩. ⟨cea-02561827⟩
109 View
29 Download

Altmetric

Share

Gmail Facebook Twitter LinkedIn More