# Is it the Na+ or the Cl- that gives table salt its taste?

What gives it that salty taste? I'm wondering if it's the $\ce{Na+}$ or the $\ce{Cl-}$. I know that $\ce{KCl}$ also tastes salty, and other salts have different flavours, but where does the saltiness in $\ce{NaCl}$ come from? I mean, it makes sense that it's the $\ce{Cl-}$ ion, but it could also be that $\ce{K+}$ and $\ce{Na+}$ have similar flavours.

• Mostly Cl-. Taste some baking soda, it is not quite salty. – Ivan Neretin Nov 2 '16 at 9:24