Lead(II) Fluoride
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Lead(II) fluoride is the inorganic compound with the formula Pb F2. It is a white solid. It exists as both an orthorhombic and cubic
forms Form is the shape, visual appearance, or configuration of an object. In a wider sense, the form is the way something happens. Form also refers to: *Form (document), a document (printed or electronic) with spaces in which to write or enter data * ...
.


Uses

Lead(II) fluoride is used in low melting
glass Glass is a non-crystalline, often transparent, amorphous solid that has widespread practical, technological, and decorative use in, for example, window panes, tableware, and optics. Glass is most often formed by rapid cooling ( quenching ...
es, in glass coatings to reflect
infrared Infrared (IR), sometimes called infrared light, is electromagnetic radiation (EMR) with wavelengths longer than those of visible light. It is therefore invisible to the human eye. IR is generally understood to encompass wavelengths from around ...
rays, in
phosphors A phosphor is a substance that exhibits the phenomenon of luminescence; it emits light when exposed to some type of radiant energy. The term is used both for fluorescent or phosphorescent substances which glow on exposure to ultraviolet or v ...
for television-tube screens, and as a catalyst for the manufacture of
picoline Picoline refers to any of three isomers of methylpyridine (CH3C5H4N). They are all colorless liquids with a characteristic smell similar to that of pyridine. They are miscible with water and most organic solvents. The CAS number of an unspecified ...
. The Muon g−2 experiment uses scintillators in conjunction with silicon
photomultiplier A photomultiplier is a device that converts incident photons into an electrical signal. Kinds of photomultiplier include: * Photomultiplier tube, a vacuum tube converting incident photons into an electric signal. Photomultiplier tubes (PMTs for sh ...
s.Via inSPIRE
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Preparation

Lead(II) fluoride can be prepared by treating lead(II) hydroxide or
lead(II) carbonate Lead(II) carbonate is the chemical compound with the chemical formula . It is a white solid with several practical uses, despite its toxicity. It occurs naturally as the mineral cerussite. Structure Like all metal carbonates, lead(II) carbonate a ...
with hydrofluoric acid: : 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 Potassium fluoride is the chemical compound with the formula KF. After hydrogen fluoride, KF is the primary source of the fluoride ion for applications in manufacturing and in chemistry. It is an alkali halide and occurs naturally as the rare ...
to a
lead(II) nitrate Lead(II) nitrate is an inorganic compound with the chemical formula Pb( NO3)2. It commonly occurs as a colourless crystal or white powder and, unlike most other lead(II) salts, is soluble in water. Known since the Middle Ages by the name plumbu ...
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 {{inorganic-compound-stub