Coke contains phosphoric acid whic is a weak acid. It is just an acid that is pretty good at removing rust and other oxides in a relatively safe way. Phosphoric

Coke contains phosphoric acid whic is a weak acid. It is just an acid that is pretty good at removing rust and other oxides in a relatively safe way. Phosphoric acid is also really good at decalcifying your teeth... Leave a tooth in coke for a few days if you want to see what I mean.