Opposite. acidic is on the low end of ph (2-4) mix the 2 and u get a chemical reaction. I use industrial strength lemon juice (Lucy's) for bathroom cleaning and cleaning concrete stains. Powdered lemonade Kool-aid equally effective! Ph is somewhere around 1.5 -2. Some people clean tools with coca cola because of the acid content.
cool scale here:

cool scale here:
