Used in dental care products like toothpaste and mouth rinses to prevent tooth decay by strengthening tooth enamel and reducing the risk of cavities. Commonly added to public water supplies in controlled amounts to promote dental health across populations. Applied in medical imaging, particularly in positron emission tomography (PET) scans, when using fluorine-18 labeled compounds. Utilized in industrial settings for metal surface treatment, including aluminum and steel, to improve corrosion resistance. Also serves in the production of fluorocarbons and as a preservative in some laboratory and biological samples due to its enzyme-inhibiting properties.