# Why is common salt insoluble in ethyl alcohol?

Oct 14, 2016

Because ethyl (and higher) alcohols are incapable of solvating $N {a}^{+}$ and $C {l}^{-}$ ions.
$N a C l \left(s\right) r i g h t \le f t h a r p \infty n s N {a}^{+} \left(a q\right) + C {l}^{-} \left(a q\right)$
We write $N {a}^{+} \left(a q\right)$. What we mean by this is the aquated ion ${\left[N a {\left(O {H}_{2}\right)}_{6}\right]}^{+}$, which is, if you like, a coordination complex of sodium ion with water ligands, i.e. hexaquasodium cation. In ethanol, this sort of solvent ion complex is not supported.