| Identification | More | [Name]
LEAD(II) BROMIDE | [CAS]
10031-22-8 | [Synonyms]
LEAD(+2)BROMIDE
LEAD BROMIDE
LEAD DIBROMIDE
LEAD(II) BROMIDE
Lead bromide (PbBr2)
leadbromide(lead(ii)bromide)
leadbromide(pbbr2)
PbBr2
Plumbous bromide
Leadbromidewhitepowder
LEAD(II) BROMIDE, 98+%
LEAD(II) BROMIDE, 99.999% METALS BASIS
LEAD(II) BROMIDE, ANHYDROUS,-10 MESH, 9 9.999%
LeadBromideForSynthesis
Lead(II) bromide, extra pure, 98+%
LEAD BROMIDE, 99.999%
lead(ii) bromide, puratronic
lead(ii) bromide, ultra dry
Lead(II) bromide, ultra dry, 99.999% (metals basis)
Lead(II) bromide, Puratronic(R), 99.999% (metals basis) | [EINECS(EC#)]
233-084-4 | [Molecular Formula]
Br2Pb | [MDL Number]
MFCD00011156 | [Molecular Weight]
367.01 | [MOL File]
10031-22-8.mol |
| Chemical Properties | Back Directory | [Appearance]
white powder | [Melting point ]
371 °C(lit.)
| [Boiling point ]
892 °C(lit.)
| [density ]
6.66 g/mL at 25 °C(lit.)
| [storage temp. ]
Keep in dark place,Inert atmosphere,Room temperature | [solubility ]
ethanol: insoluble(lit.) | [form ]
Powder | [color ]
White to off-white | [Specific Gravity]
6.66 | [Stability:]
Stable. | [Water Solubility ]
Soluble in water at 20°C 5g/L. Insoluble in ethanol. Solubility in N,N-DMF is almost transparent. | [Merck ]
14,5403 | [Solubility Product Constant (Ksp)]
pKsp: 6.82 | [InChIKey]
ZASWJUOMEGBQCQ-UHFFFAOYSA-L | [CAS DataBase Reference]
10031-22-8(CAS DataBase Reference) | [EPA Substance Registry System]
Lead(II) bromide (10031-22-8) |
| Hazard Information | Back Directory | [Chemical Properties]
white, ortho-rhomb crystal(s); -80 mesh with 99.999% purity; enthalpy of vaporization 133 kJ/mol; enthalpy of fusion 16.44 kJ/mol; obtained from PbO or PbCO3 and HBr; finds use as a photopolymerization catalyst and in photoduplication processes in the 365 nm region [KIR78] [CER91] [CRC10] [MER06] | [Purification Methods]
Crystallise it from water containing a few drops of HBr (25mL of water per gram PbBr2) between 100o and 0o. A neutral solution is evaporated at 110o, and the crystals that separate are collected by rapid filtration at 70o and dried at 105o (to give the monohydrate). Its solubility in H2O is 0.5% (at ~10o) and 5% (at ~ 100o). To prepare the anhydrous bromide, the hydrate is heated for several hours at 170o and then in a Pt boat at 200o in a stream of HBr and H2. Finally it is fused [Clayton et al. J Chem Soc, Faraday Trans 1 76 2362 1980]. |
| 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
| [TSCA ]
Yes | [HazardClass ]
6.1 | [PackingGroup ]
III | [HS Code ]
28275900 |
| Questions And Answer | Back Directory | [Physical Properties]
White orthorhombic crystals; density 6.66 g/cm3; melts at 373°C; forms a horn-like mass on solidification; vaporizes at 916°C; decomposes slowly on exposure to light; sparingly soluble in cold water (4.55 g/L at 0°C and 8.44 g/L at 20°C, respectively); moderately soluble in boiling water (44.1g/L at 100°C); Ksp 6.60x10–6 at 25°C; insoluble in alcohol; slightly soluble in ammonia; soluble in alkalies and also in sodium or potassium bromide solutions.
| [Uses]
Lead(II) bromide is used for developing images in photography; as inorganic filler in fire-retardant plastics; as a photopolymerization catalyst for acrylamide monomer; and as a welding flux for welding aluminum or its alloys to other metals.
| [Preparation]
Lead bromide is prepared by treating an aqueous solution of lead nitrate with hydrobromic acid or with sodium or potassium bromide:
Pb2+ + 2Br¯ → PbBr2
The solution is allowed to stand to let the precipitate settle.
The compound also may be obtained by adding lead carbonate or lead monoxide to hydrobromic acid.
| [Toxicity]
Moderately toxic by ingestion. The toxic effects are those of lead.
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