SODIUM FLUORIDE
toothpaste

Sodium fluoride is a colorless solid made by combining fluorocilicic acid and sodium hydroxide. It is an ionic compound made from separating Na+ ion and F– neutralized from super-phosphate fertilizer. This process sometimes need alcohol to precipitate it. It is mostly used as preventive for tooth decay, and it has its best effect when has direct contact with tooth. It often added to prevent cavities and to maintain tooth strength and health. It is also can be added in water for the same purpose, dental health.