Mercury(II) fluoride

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Mercury(II) fluoride
Mercury(II) fluoride
Identifiers
CAS number 7783-39-3 YesY=
PubChem 82209
Properties
Molecular formula HgF2
Molar mass 238.587 g/mol
Appearance hygroscopic white cubic crystals
Density 8.95 g/cm3
Melting point decomposes at 645°C
Solubility in water reacts[1]
Structure
Crystal structure Fluorite (cubic), cF12
Space group Fm3m, No. 225
Related compounds
Other anions Mercury(II) chloride
Mercury(II) bromide
Mercury(II) iodide
Other cations Mercury(I) fluoride
Zinc fluoride
Cadmium fluoride
Thallium(I) fluoride
Except where noted otherwise, data are given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
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Infobox references
"Mercuric fluoride" redirects here.

Mercury(II) fluoride has the molecular formula Hg F2.

Synthesis[edit]

Mercury(II) fluoride is most commonly produced by the reaction of mercury(II) oxide and hydrogen fluoride:

HgO + 2 HF → HgF2 + H2O

Mercury(II) fluoride can also be produced through the fluorination of mercury(II) chloride:

HgCl2 + F2 → HgF2 + Cl2

or mercury(II) oxide:.[2]

2 HgO + 2 F2 → 2 HgF2 + O2

Applications[edit]

Mercury(II) fluoride is a selective fluorination agent.[3]

References[edit]

  1. ^ Lide, David R. (1998), Handbook of Chemistry and Physics (87 ed.), Boca Raton, FL: CRC Press, pp. 4–69, ISBN 0-8493-0594-2 
  2. ^ Greenwood, Norman N.; Earnshaw, Alan (1997). Chemistry of the Elements (2nd ed.). Butterworth-Heinemann. ISBN 0080379419. 
  3. ^ Habibi, Mohammed H.; Mallouk, Thomas E. (1991). "Photochemical selective fluorination of organic molecules using mercury (II) fluoride". Journal of Fluorine Chemistry 51 (2): 291. doi:10.1016/S0022-1139(00)80299-7.