Sodium fluoride, derived from fluorite, strengthens enamel, prevents cavities, and promotes remineralization for stronger teeth. It reduces plaque, maintains gum health, and is integral to mouthwash formulations.

The article highlights aluminum fluoride's versatile applications in wastewater and air treatment. It serves as a coagulant and pH adjuster in wastewater, utilizing hydrolysis for efficient impurity removal. In air treatment, it acts as a gas adsorbent and reacts with pollutants.

Zinc fluoride is vital in transparent coatings, inks, adhesives, resistors, and films, balancing transparency and conductivity. Its versatility ensures clarity, adjustable conductivity, and reliable bonding, making it indispensable for advancing electronic devices.

Fluoride nickel enhances aluminum's durability and corrosion resistance through anodizing, closing micro-pores for improved performance in diverse applications.

Sodium bifluoride (NaHF2) enhances metal quality and adhesion in aluminum, titanium, magnesium, and steel. It removes oxides and offers controlled etching, but safety precautions are crucial due to its corrosiveness. Understanding its applications and principles is vital for metal surface quality.