Characteristic

 

Tin(II) fluoride, commonly referred to commercially as stannous fluoride, is a chemical compound with the formula SnF₂. 

Chemical formula：SnF₂

Molar mass：156.69 g/mol

Appearance：colorless solid

Density：4.57 g/cm³

Melting point：213 °C (415 °F; 486 K)

Boiling point：850 °C (1,560 °F; 1,120 K)

Solubility in water：31 g/100 mL (0 °C);35 g/100 mL (20 °C);78.5 g.100 mL (106 °C)

Solubility：soluble in KOH, KF;

negligible in ethanol, ether, chloroform

Crystal structure：Monoclinic, mS48

 

Application

 

Tin(II) fluoride is used in the prevention of dental caries. It is an active ingredient in toothpastes.