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Tin Fluoride Powder

Tin Fluoride Powder

Tin Fluoride Powder
Product No NRE-11248
CAS 7783-62-2
Purity 99.9%
Formula SnF4
APS <40 µm (can be customized)
Color white
Molecular Weight 194.7 g/mol
Density 4.78 g/cm3
Melting Point >700 °C
Boiling Point NA

Tin Fluoride Powder

Tin fluoride (SnF₂), also known as stannous fluoride, is an inorganic compound consisting of tin (Sn) and fluorine (F). It is most commonly encountered as a white crystalline powder, and it is known for its significant applications in oral hygiene products, as well as other industrial uses.

Tin fluoride is prepared by the direct reaction of tin metal (Sn) with fluorine gas (F₂) or hydrofluoric acid (HF) under controlled conditions:

Sn+F2→SnF2Sn + F₂ → SnF₂Sn+F2​→SnF2​

Alternatively, it can be synthesized by reacting tin salts with fluoride salts. Tin fluoride plays an important role in various fields due to its unique properties, including its ability to bond with enamel and reduce tooth decay.

Applications of Tin Fluoride Powder (SnF₂)

Oral Care (Toothpaste and Mouth Rinses):

The most well-known application of tin fluoride is in dental care products. Tin fluoride is widely used in toothpaste and mouthwashes because of its anti-cavity and anti-bacterial properties. It helps prevent dental caries by strengthening tooth enamel, making it more resistant to decay caused by acids produced by bacteria in the mouth.

Tin fluoride also helps to reduce plaque buildup and fight gingivitis, a gum disease. It is considered one of the most effective fluoride compounds for preventing tooth sensitivity and protecting against cavities. Its incorporation in dental care products ensures long-lasting protection and strengthens the enamel through fluoride ions, which remineralize weakened enamel.

Water Fluoridation:

Tin fluoride is sometimes used in the fluoridation of drinking water. When dissolved in water, tin fluoride releases fluoride ions, which help in preventing tooth decay in communities with lower natural fluoride levels. Its use is regulated to ensure safe levels of fluoride are maintained in public water supplies.

Industrial Applications (Metal Surface Treatment):

Tin fluoride is used in surface treatment processes, particularly for metal coating and tin-plating. In the electroplating industry, it is used as a flux in the process of plating metals with tin. The fluoride ions help to clean the metal surfaces and facilitate the deposition of the tin layer. This application is particularly useful in the electronics industry for producing tin-coated components and wires.

 

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