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| Names | |
|---|---|
| IUPAC name
Mercury(II) fluoride
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| Other names
Mercuric fluoride
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| Identifiers | |
3D model (JSmol)
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| ECHA InfoCard | 100.029.085 |
| EC Number |
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PubChem CID
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| UNII | |
CompTox Dashboard (EPA)
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| Properties | |
| HgF2 | |
| Molar mass | 238.587 g/mol |
| Appearance | hygroscopic white cubic crystals |
| Density | 8.95 g/cm3 |
| Melting point | decomposes at 645°C |
| reacts[1] | |
| −62.0·10−6 cm3/mol | |
| Structure | |
| Fluorite (cubic), cF12 | |
| Fm3m, No. 225 | |
| Hazards | |
| Occupational safety and health (OHS/OSH): | |
Main hazards
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highly toxic |
| GHS labelling: | |
  
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| H300, H310, H330, H373, H410 | |
| P301+P310, P304+P340, P320, P330, P360, P361, P405, P501[2] | |
| NFPA 704 (fire diamond) | |
| Related compounds | |
Other anions
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Mercury(II) chloride Mercury(II) bromide Mercury(II) iodide |
Other cations
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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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Mercury(II) fluoride has the molecular formula HgF2 as a chemical compound of one atom of mercury with 2 atoms of fluorine.
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
or of mercury(II) oxide:[3]
- 2 HgO + 2 F2 → 2 HgF2 + O2
with oxygen as byproduct.
Applications
Mercury(II) fluoride is a selective fluorination agent.[4]
References
- ^ Lide, David R (1998), Handbook of Chemistry and Physics (87th ed.), Boca Raton, Florida: CRC Press, pp. 4–69, ISBN 0-8493-0594-2
- ^ "Mercury(II) fluoride MSDS". ThermoFisher Scientific. Retrieved 2022-02-02.
- ^ Greenwood, Norman N.; Earnshaw, Alan (1997). Chemistry of the Elements (2nd ed.). Butterworth-Heinemann. ISBN 978-0-08-037941-8.
- ^ 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.
