Mercury(II) fluoride

Updated on Nov 23, 2023

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Formula HgF2 Density 8.95 g/cm³		Molar mass 238.59 g/mol

Appearance hygroscopic white cubic crystals

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

or mercury(II) oxide:.

2 HgO + 2 F₂ → 2 HgF₂ + O₂

Mercury(II) fluoride is a selective fluorination agent.

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