| Identification | More | [Name]
Lead fluoride | [CAS]
7783-46-2 | [Synonyms]
LEAD(+2)FLUORIDE
LEAD DIFLUORIDE
LEAD FLUORIDE
LEAD(II) FLUORIDE
Lead fluoride (PbF2)
Lead fluoride, alpha
leadfluoride(pbf2)
NA 2811
PbF2
Plomb fluorure
plombfluorure
plombfluorure(french)
Plumbous fluoride
plumbousfluoride
Lead(Ⅱ) fluoride
LEAD(II) FLUORIDE, 99.99%
LEAD(II) FLUORIDE, POWDER, CA. 5 MICRON, 99+%
Lead(Ii)Fluoride>96%
Lead(II)fluoride,99%(metalsbasis)
Lead(II)fluoride,99.5%min | [EINECS(EC#)]
231-998-8 | [Molecular Formula]
F2Pb | [MDL Number]
MFCD00011162 | [Molecular Weight]
245.2 | [MOL File]
7783-46-2.mol |
| Chemical Properties | Back Directory | [Appearance]
Lead fluoride is a white to colorless, odorless
crystalline (rhombic, orthorhombic) solid | [Melting point ]
824 °C(lit.) | [Boiling point ]
1293 °C | [density ]
8.445 g/mL at 25 °C(lit.)
| [Fp ]
1290°C | [form ]
powder
| [color ]
White to off-white | [Specific Gravity]
8.445 | [Water Solubility ]
0.065 g/100 mL (20 ºC) | [Merck ]
14,5408 | [Solubility Product Constant (Ksp)]
pKsp: 7.48 | [Exposure limits]
ACGIH: TWA 0.05 mg/m3; TWA 2.5 mg/m3
NIOSH: IDLH 100 mg/m3; IDLH 250 mg/m3; TWA 0.050 mg/m3 | [CAS DataBase Reference]
7783-46-2(CAS DataBase Reference) | [NIST Chemistry Reference]
Lead difluoride(7783-46-2) | [EPA Substance Registry System]
7783-46-2(EPA Substance) |
| Safety Data | Back Directory | [Hazard Codes ]
T,N | [Risk Statements ]
R61:May cause harm to the unborn child.
R20/22:Harmful by inhalation and if swallowed .
R33:Danger of cumulative effects.
R50/53:Very Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment .
R62:Possible risk of impaired fertility. | [Safety Statements ]
S53:Avoid exposure-obtain special instruction before use .
S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) .
S60:This material and/or its container must be disposed of as hazardous waste .
S61:Avoid release to the environment. Refer to special instructions safety data sheet . | [RIDADR ]
UN 2291 6.1/PG 3
| [WGK Germany ]
3
| [RTECS ]
OG1225000
| [Hazard Note ]
Toxic | [TSCA ]
Yes | [HazardClass ]
6.1 | [PackingGroup ]
III | [HS Code ]
28261990 | [Hazardous Substances Data]
7783-46-2(Hazardous Substances Data) |
| Hazard Information | Back Directory | [General Description]
Odorless white solid. Sinks in water. | [Reactivity Profile]
Calcium carbide mixed with LEAD FLUORIDE(7783-46-2), at ordinary temperatures, becomes incandescent [Mellor 5:862-64. 1946-47]. | [Air & Water Reactions]
Slightly soluble in water. | [Health Hazard]
Not irritating to skin or mucuous membranes; protect against chronic poisoning. Early symptoms of lead intoxication via inhalation or ingestion are most commonly gastrointestinal disorders, colic, constipation, etc.; weakness, which may go on to paralysis chiefly of the extensor muscles of the wrists and less often the ankles, is noticeable in the most serious cases. Ingestion of a large amount causes local irritation of the alimentary tract; pain, leg cramps, muscle weakness, paresthesias, depression, coma, and death may follow in 1 or 2 days. Contact with eyes causes irritation. | [Potential Exposure]
Used to make other chemicals, underwater paints; electronic and optical parts (for growing
single-crystal, solid-state lasers); in high-temperature dryfilm lubricants; and making special grades of glass. | [Fire Hazard]
Non-combustible, substance itself does not burn but may decompose upon heating to produce corrosive and/or toxic fumes. Some are oxidizers and may ignite combustibles (wood, paper, oil, clothing, etc.). Contact with metals may evolve flammable hydrogen gas. Containers may explode when heated. | [First aid]
If this chemical gets into the eyes, remove any
contact lenses at once and irrigate immediately for at least
15 minutes, occasionally lifting upper and lower lids. Seek
medical attention immediately. If this chemical contacts the
skin, remove contaminated clothing and wash immediately
with soap and water. Seek medical attention immediately.
If this chemical has been inhaled, remove from exposure,
begin rescue breathing (using universal precautions, including resuscitation mask) if breathing has stopped and CPR if
heart action has stopped. Transfer promptly to a medical
facility. When this chemical has been swallowed, get medical attention. Give large quantities of water and induce
vomiting. Do not make an unconscious person vomit | [Shipping]
UN3288 Toxic solids, inorganic, n.o.s., Hazard
Class: 6.1; Labels: 6.1-Poisonous materials, Technical
Name Required. UN2291 Lead compounds, soluble n.o.s.,
Hazard Class: 6.1; Labels: 6.1-Poisonous materials,
Technical Name Required | [Incompatibilities]
Violent reaction with oxidizers, chemically active metals; calcium carbide. May ignite combustibles, such as wood, paper, oil, etc | [Description]
Lead fluoride is a white to colorless, odorlesscrystalline (rhombic, orthorhombic) solid. Molecularweight =245.19; Boiling point=1292℃; Freezing/Meltingpoint = 825℃. Hazard Identification (based on NFPA-704M Rating System): Health 1, Flammability 0, Reactivity 0.Slightly soluble in water. | [Chemical Properties]
Lead fluoride is a white to colorless, odorless
crystalline (rhombic, orthorhombic) solid | [Application]
It is used as the transmission window in λ: 250 nm–10 mm and as the prism in the infrared region. | [storage]
Color Code—Blue: Health Hazard/Poison: Storein a secure poison location. Prior to working with thischemical you should be trained on its proper handling andstorage. Store in tightly closed containers in a cool, wellventilated area. Lead is regulated by an OSHA Standard1910.1025. All requirements of the standard must befollowed. |
| Questions And Answer | Back Directory | [Physical Properties]
Colorless orthorhombic crystals or white powder; converts to cubic form at 316°C; density 8.445 g/cm3 (orthorhombic form) and 7.750 g/cm3 (cubic form); melts at 855°C; vaporizes at 1,290°C; slightly soluble in water (640 mg/L at 20°C); KSP 7.12x10–7 at 25°C; soluble in nitric acid; insoluble in acetone and ammonia.
| [Uses]
Lead difluoride is used in low melting glasses; in glass coatings to reflect infrared rays; in phosphors for television-tube screens; for nickel plating on glass; and as a catalyst for the manufacture of picoline.
| [Preparation]
Lead difluoride can be prepared by several methods. It is obtained by treating lead hydroxide or lead carbonate with hydrofluoric acid, followed by evaporation of the solution:
Pb(OH)2 + 2HF → PbF2 + 2H2O
Alternatively, it is precipitated by adding hydrofluoric acid to a lead(II) salt solution; or adding potassium fluoride to lead nitrate solution:
2KF + Pb(NO3)2 → PbF2 + 2KNO3
Lead difluoride also can be directly synthesized from its elements, by the action of lead with fluorine.
| [Toxicity]
Slightly to moderately toxic by ingestion and subcutaneous routes. The oral LD50 in rats is around 3,000 mg/kg.
|
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Alfa Aesar
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400-6106006 |
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http://chemicals.thermofisher.cn |
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Energy Chemical
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021-021-58432009 400-005-6266 |
| Website: |
http://www.energy-chemical.com |
| Company Name: |
BEST-REAGENT
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400-1166-196 18981987031 |
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http://www.hx-r.com/ |
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