Lead(II) chloride

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Lead(II) chloride
IUPAC name
Lead(II) chloride
Other names
Lead dichloride
Plumbous chloride
Jmol-3D images Image
Molar mass 278.10 g/mol
Appearance White solid
Odor Odorless
Density 5.85 g/cm3 (20 °C)
Melting point 501 °C (934 °F; 774 K)
Boiling point 950 °C (1,740 °F; 1,220 K)
0.673 g/100 ml (0 °C)
0.99 g/100 ml (20 °C)
3.34 g/100 ml (100 °C)
Solubility Slightly soluble in dil. hydrochloric acid, aq. ammonia
Insoluble in alcohols, carboxylic acids, hydrocarbons
Vapor pressure ~ 0 mmHg
135.98 J·K−1·mol−1
-359.41 kJ/mol
Safety data sheet Sigma-Aldrich
Flash point Non-flammable
Lethal dose or concentration (LD, LC):
1.947 mg/kg (rat, oral)
Related compounds
Related compounds
Lead(II) iodide
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

Lead(II) chloride is a chemical compound with the chemical formula PbCl2.



Addition of chloride ions to a suspension of PbCl2 gives rise to soluble complex ions.

PbCl2 reacts with molten sodium nitrite to give PbO:

PbCl2 + 3 NaNO2 → PbO + NaNO3 + 2 NO + 2 NaCl

If chlorine gas is bubbled through a saturated solution of PbCl2 with ammonium chloride, ammonium hexachloroplumbate [NH4]2[PbCl6] is obtained. If cold concentrated sulfuric acid is added to the solid compound, while maintaining the temperature around 0 °C, lead(IV) chloride (PbCl4) is obtained, as a clear oil.

Addition of sodium hypochlorite to lead(II) chloride will form lead(IV) oxide.

Lead(II) chloride is the main precursor for organometallic derivatives of lead, such as plumbocenes.


Lead(II) chloride is a white solid, slightly soluble in water.


Lead(II) chloride is sold by chemical suppliers.

PbCl2 occurs naturally in the form of the mineral cotunnite.


Lead(II) chloride precipitates from solution upon addition of chloride sources (HCl, NaCl, KCl) to aqueous solutions of soluble lead(II) compounds:

Pb(NO3)2 + 2 NaCl → PbCl2 + 2 NaNO3
Pb(CH3COO)2 + HCl → PbCl2 + 2 CH3COOH

The addition of HCl to lead(II) carbonate will also produce lead(II) carbonate, although due to the low solubility of the lead chloride, this reaction is slow.

PbCO3 + 2 HCl → PbCl2 + CO2 + H2O

Addition of hydrochloric acid to lead oxides gives lead(II) chloride, and for lead(IV) oxide, chlorine gas is also produced:

PbO2 + 4 HCl → PbCl2 + Cl2 + 2 H2O
PbO + 2 HCl → PbCl2 + H2O

Chlorine gas will react with lead metal to form lead dichloride.

Pb + Cl2 → PbCl2


  • Make lead tetrachloride
  • Make Pattinson's white lead
  • Make plumbocenes
  • Mineral collecting



Like other lead-containing compounds, PbCl2 is extremely toxic and any exposure of sufficient dose can lead to lead poisoning.


In closed plastic or glass bottles.


Should be taken to hazardous waste disposal centers.


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