Nomenclature
CAS number: 7783-39-3
Mercury difluoride.
F
2Hg; mol wt 238.59.
F 15.93%, Hg 84.07%.
HgF
2.
Description and references
Prepd from HgCl2 and F2: Henne, Midgley, J. Am. Chem. Soc. 58, 886 (1936).
Properties
White powder or cubic crystals. Very sensitive
to moisture. d15 8.95. mp 645°.
bp >650°. Turns
yellow and hydrolyzes in the prolonged presence of water.Derivative
Dihydrate.
Properties
Obtained when mercuric oxide is dissolved in excess
of 50% HF.Use
In the fluorination of organic compds.