Which is more polar: a saturated NaCl solution, or a saturated KCl solution?
(You get more KCl dissolved than NaCl, but KCl is better solvated/less `bare charge' than NaCl.)
Context for this question is extractions involving a certain aromatic amine
![Wink ;)](https://thevespiary.org/talk/Smileys/default/wink.gif)
. See also thread about `MDMA: the phase transfer molecule'.