Lead(II) fluoride
Names | |
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Other names
Lead difluoride
plumbous fluoride | |
Identifiers | |
3D model (JSmol)
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ChemSpider | |
ECHA InfoCard | 100.029.089 |
PubChem CID
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UNII | |
CompTox Dashboard (EPA)
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Properties | |
Chemical formula
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PbF2 |
Molar mass | 245.20 g/mol |
Appearance | white powder |
Odor | odorless |
Density | 8.445 g/cm3 (orthorhombic) 7.750 g/cm3 (cubic) |
Melting point | 824 °C (1,515 °F; 1,097 K) |
Boiling point | 1,293 °C (2,359 °F; 1,566 K) |
0.057 g/100 mL (0 °C) 0.0671 g/100 mL (20 °C)[1] | |
Solubility product (Ksp)
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2.05 x 10−8 (20 °C) |
Solubility | soluble in nitric acid and hydrochloric acid; insoluble in acetone and ammonia |
Magnetic susceptibility (χ)
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−-58.1·10−6 cm3/mol |
Structure | |
Crystal structure
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Fluorite (cubic), cF12 |
Space group
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Fm3m, No. 225 |
Hazards | |
Lethal dose or concentration (LD, LC): | |
LD50 (median dose)
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3031 mg/kg (oral, rat) |
Related compounds | |
Other anions
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Lead(II) chloride Lead(II) bromide Lead(II) iodide |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | |
what is ?) | (|
Infobox references | |
Lead(II) fluoride is the inorganic compound with the formula PbF2. It is a white solid. It exists as both an orthorhombic and cubic 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.[2] The Muon g−2 experiment uses PbF
2 scintillators in conjunction with silicon photomultipliers.[3]
Preparation[]
Lead(II) fluoride can be prepared by treating lead(II) hydroxide or lead(II) carbonate with hydrofluoric acid:[2]
- 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.[4]
- 2 KF + Pb(NO3)2 → PbF2 + 2 KNO3
It appears as the very rare mineral .[5][6]
References[]
- ^ NIST-data review 1980
- ^ a b Carr, Dodd S. "Lead Compounds". Ullmann's Encyclopedia of Industrial Chemistry. Weinheim: Wiley-VCH. doi:10.1002/14356007.a15_249.
- ^ Grange, J.; et al. (Muon g−2 Collaboration) (Jan 27, 2015). "Muon (g−2) Technical Design Report". arXiv:1501.06858. Bibcode:2015arXiv150106858G. Cite journal requires
|journal=
(help) Via inSPIRE - ^ Arnold Hollemann, Egon Wiberg, 101st ed., de Gruyter 1995 Berlin; ISBN 3-11-012641-9
- ^ "Fluorocronite".
- ^ "List of Minerals". 21 March 2011.
Categories:
- Fluorides
- Lead(II) compounds
- Metal halides
- Phosphors and scintillators
- Reagents for organic chemistry
- Glass compositions
- Inorganic compound stubs