Fig. 4: Effect of organic-phase electrolyte on emulsification behavior.
From: Interfacial solute flux promotes emulsification at the water|oil interface
A Graphic showing initial conditions where the DCE phase contains 10 mM of a non-aqueous salt with variable cation (X) and anion (Y), while the aqueous phase contains 10 mM HAuCl4 + 1 M NaCl. B–F Light microscope images showing the liquid|liquid interface after 10 min from initial contact of the two phases. All images show the DCE phase on the left and the aqueous phase on the right. For B–D, tetrabutylammonium (NBu4+) salts were used in the DCE with the anion being Br– (B), ClO4– (C), or PF6– (D). For E and F, perchlorate salts were used in the DCE with the cation being tetraethylammonium (NEt4+, E) or tetrahexylammonium (NHx4+, F). All optical micrographs were taken with a ×40 NA 0.60 objective and a 500 ms exposure time.
