What Is Tin (II) Fluoride?


Quick Answer

Tin(II) fluoride, also known as stannous fluoride or tin difluoride, is the tin(II) salt of hydrofluoric acid. Its chemical formula is SnF2 and its molar weight is 156.69 grams per mole. It is a colorless solid substance and its density is 4.57 grams per cubic centimeter.

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Full Answer

Tin(II) fluoride is soluble in water and practically insoluble in organic solvents, such as ethanol or ether. It is produced from the reaction of tin(II) oxide, SnO, with hydrofluoric acid, HF. It is used as an ingredient in toothpaste, as a replacement for sodium fluoride. It is an irritant when inhaled or when it comes in contact with the eyes. Doses larger than 2 milligrams per cubic meter may cause abdominal pain and shock when ingested.

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