Lead(II) fluoride is the
inorganic compound
In chemistry, an inorganic compound is typically a chemical compound that lacks carbon–hydrogen bonds, that is, a compound that is not an organic compound. The study of inorganic compounds is a subfield of chemistry known as '' inorganic chemist ...
with the formula
Pb F2. It is a white solid. It exists as both an
orthorhombic
In crystallography, the orthorhombic crystal system is one of the 7 crystal systems. Orthorhombic lattices result from stretching a cubic lattice along two of its orthogonal pairs by two different factors, resulting in a rectangular prism with a r ...
and
cubic
Cubic may refer to:
Science and mathematics
* Cube (algebra), "cubic" measurement
* Cube, a three-dimensional solid object bounded by six square faces, facets or sides, with three meeting at each vertex
** Cubic crystal system, a crystal system w ...
forms.
Uses
Lead(II) fluoride is used in low melting
glasses, in glass coatings to reflect
infrared rays, in
phosphors for television-tube screens, and as a catalyst for the manufacture of
picoline.
The
Muon g−2
Muon − 2 (pronounced "gee minus two") is a particle physics experiment at Fermilab to measure the anomalous magnetic dipole moment of a muon to a precision of 0.14 ppm, which will be a sensitive test of the Standard Model. It mi ...
experiment uses scintillators in conjunction with silicon
photomultipliers.
[Via inSPIRE]
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Preparation
Lead(II) fluoride can be prepared by treating lead(II) hydroxide
Lead(II) hydroxide, Pb(OH)2, is a hydroxide of lead, with lead in oxidation state +2. In 1964 it was believed that such a simple compound did not exist, as lead basic carbonate (2PbCO3·Pb(OH)2) or lead(II) oxide (PbO) was encountered where lead ...
or lead(II) carbonate with hydrofluoric acid
Hydrofluoric acid is a Solution (chemistry), solution of hydrogen fluoride (HF) in water. Solutions of HF are colourless, acidic and highly Corrosive substance, corrosive. It is used to make most fluorine-containing compounds; examples include th ...
:[
: Pb(OH)2 + 2 HF → PbF2 + 2 H2O
Alternatively, it is precipitated by adding hydrofluoric acid to a lead(II) salt solution, or by adding potassium fluoride to a lead(II) nitrate solution.][Arnold Hollemann, Egon Wiberg, 101st ed., de Gruyter 1995 Berlin; ]
: 2 KF + Pb(NO3)2 → PbF2 + 2 KNO3
It appears as the very rare mineral fluorocronite.
References
Fluorides
Lead(II) compounds
Metal halides
Phosphors and scintillators
Reagents for organic chemistry
Glass compositions
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