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Lead(II) bromide

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Formula  PbBr2
Melting point  373 °C
Density  6.66 g/cm³
Molar mass  367.01 g/mol
Boiling point  916 °C
Appearance  white powder
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Dse07 13 electrolysis of molten lead ii bromide

Lead(II) bromide is the inorganic compound with the formula PbBr2. It is a white powder. It is produced in the burning of typical leaded gasolines.


Electrolysis of molten sodium chloride nacl and lead ii bromide pbbr2

Preparation and properties

It is typically prepared from treating solutions of lead salts (e.g., (lead(II) nitrate) with bromide salts. This process exploits its low solubility in water - only 0.455 g dissolves in 100 g of water at 0 °C. It is about ten times more soluble in boiling water.

Lead bromide was prevalent in the environment as the result of the use of leaded gasoline. Tetraethyl lead was once widely used to improve the combustion properties of gasoline. To prevent the resulting lead oxides from fouling the engine, gasoline was treated with an organobromine compound that converted lead oxides into the more volatile lead bromide, which was then exhausted from the engine into the environment.


Like other compounds containing lead, lead dibromide is categorized as probably carcinogenic to humans (Category 2A), by the International Agency for Research on Cancer (IARC). Its release into the environment as a product of leaded gasoline was highly controversial.


Lead(II) bromide Wikipedia

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