Used in dental care products like toothpaste and mouth rinses to prevent tooth decay by strengthening enamel and inhibiting bacterial activity. Commonly added to public water supplies to promote oral health and reduce cavities in the population.

Applied in medical imaging, particularly in positron emission tomography (PET) scans, when using fluorine-18 labeled compounds.

Utilized in industrial processes for metal surface treatment, glass etching, and as a cleaning agent in semiconductor manufacturing. Also serves as a preservative and antimicrobial agent in some laboratory and diagnostic applications.