Introduction:
The ionic fluoride is like free fluoride ions, but in chemical terms they are really not free, but ionized. The fluoride in the water is just fluoride [in the ionic form]. The fluoride in the water does not know if it came from sodium fluoride or calcium fluoride or another fluoride compound (in the inorganic form, of course). Fluoridation does not affect the appearance, taste, or smell of drinking water. It is normally accomplished by adding one of three compounds to the water: sodium fluoride, fluorosilicic acid, or sodium fluorosilicate. Incidentally, tests that are taken to measure the concentration ...
