Tin(II) fluoride
Tin(II) fluoride is an inorganic compound with the chemical formula SnF2. It is a colorless solid used in some fluoride-based toothpastes as a source of fluoride ion. Tin(II) fluoride is a component of some dentifrices and has been used in topical, dental preparations for home use for the prevention of dental caries.
Chemical Properties[edit | edit source]
Tin(II) fluoride is a white crystalline solid, which is soluble in water. It is a reducing agent and can be used to produce other tin(II) compounds. It is stable under normal conditions but decomposes upon heating, producing toxic fumes of hydrogen fluoride.
Preparation[edit | edit source]
Tin(II) fluoride can be prepared by the reaction of tin or tin(II) oxide with hydrogen fluoride. The reaction is exothermic and needs to be controlled to prevent rapid boiling and splattering of the product.
Uses[edit | edit source]
The primary use of tin(II) fluoride is in oral care products such as toothpaste and mouthwash, where it serves as a source of fluoride ions. Fluoride ions help to prevent tooth decay by promoting the remineralization of tooth enamel and inhibiting the growth of harmful oral bacteria.
In addition to its use in oral care products, tin(II) fluoride is also used in some industrial applications. For example, it is used in the manufacture of glass, where it serves as a flux to lower the melting point of the raw materials.
Safety[edit | edit source]
Tin(II) fluoride is generally safe for use in oral care products, but it can be harmful if swallowed in large amounts. It can also cause skin and eye irritation. In case of accidental ingestion or contact with the skin or eyes, medical attention should be sought immediately.
See Also[edit | edit source]
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