Formula TlF2• Molar mass 223.381 g/mol Density 8.36 g/cm³ Appearance White crystals | Melting point 327 °C Boiling point 655 °C Soluble in Water | |
Thallium(I) fluoride (or thallous fluoride or thallium monofluoride) is the chemical compound composed of thallium and fluorine with the formula TlF. It consists of hard white orthorhombic crystals which are slightly deliquescent in humid air but revert to the anhydrous form in dry air. It has a distorted sodium chloride (rock salt) crystal structure, due to the 6s2 inert pair on Tl+.
Thallium(I) fluoride is unusual among the thallium(I) halides in that it is very soluble in water, while the others are not.
Reactions
Thallium(I) fluoride can be prepared by the reaction of thallium(I) carbonate with hydrofluoric acid.
References
Thallium(I) fluoride Wikipedia(Text) CC BY-SA