<unk>  <unk>  is an inorganic compound with the formula . It is used in trace amounts in the fluoridation of drinking water, in toothpaste, in metallurgy, and as a flux, and is also used in pesticides and rat poison. It is a colorless or white solid that is readily soluble in water. It is a common source of fluoride in the production of pharmaceuticals and is used to prevent dental cavities. In 2017, it was the 247th most commonly prescribed medication in the United States, with more than one million prescriptions.
Sodium fluoride
Potassium fluoride
Amine fluoride
Perchloryl fluoride
Silver diammine fluoride
Potassium iodide
Hydrogen fluoride
Silver nitrate