Mercury(II) fluoride

Mercury(II) fluoride
	Mercury(II) fluoride
Names
	IUPAC name Mercury(II) fluoride
	Other names Mercuric fluoride
Identifiers
CAS Number	7783-39-3 =
PubChem	82209
Properties
Chemical 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
Structure
Crystal structure	Fluorite (cubic), cF12
Space group	Fm3m, No. 225
Vapor pressure	{{{value}}}
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 otherwise noted, 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 HgF₂.

Synthesis

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

2 HgO + 2 F₂ → 2 HgF₂ + O₂

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

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