Sodium monofluorophosphate

Sodium monofluorophosphate is a chemical compound used in various applications, most notably in toothpaste as a source of fluoride to prevent tooth decay and cavities. It is also known by its chemical formula, Na2PO3F, and its CAS number, 10163-24-5.

History

Sodium monofluorophosphate was first described in 1929 by the German chemist Fritz Seel. It was later patented by Procter & Gamble in 1950 and has since become a common ingredient in many toothpaste brands worldwide.

Chemical Properties

Sodium monofluorophosphate is a white, crystalline powder with a melting point of 625 °C. It is soluble in water and has a molecular weight of 143.95 g/mol. The compound is made up of sodium, phosphorus, oxygen, and fluorine atoms.

Uses

The primary use of sodium monofluorophosphate is in toothpaste and other oral care products. It works by releasing fluoride ions onto the surface of the teeth. These ions then react with the hydroxyapatite in the tooth enamel to form a protective layer of fluorapatite, which is more resistant to decay.

In addition to its use in oral care, sodium monofluorophosphate is also used in some pesticides and cleaning products.

Safety

Sodium monofluorophosphate is generally considered safe for use in toothpaste and other oral care products. However, it can be harmful if swallowed in large amounts. Symptoms of overdose may include nausea, vomiting, and diarrhea.

See Also

• Fluoride
• Toothpaste
• Tooth decay
• Cavities

References

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Sodium_monofluorophosphate

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  Sodium monofluorophosphate