Lead(II) chloride

Lead(II) chloride
Lead(II) chloride

The crystal structure of PbCl2, in the unconventional crystallographic setting Pnam. This corresponds to the standard Pnma setting by switching the labels on the b and c axes.
Names
IUPAC names
Lead(II) chloride
Lead dichloride
Other names
Plumbous chloride
Cotunnite
Dichloroplumbylene
Identifiers
3D model (JSmol)
ChEBI
ChemSpider
ECHA InfoCard 100.028.950 Edit this at Wikidata
EC Number
  • 231-845-5
UNII
  • InChI=1S/2ClH.Pb/h2*1H;/q;;+2/p-2 checkY
    Key: HWSZZLVAJGOAAY-UHFFFAOYSA-L checkY
  • Cl[Pb]Cl
Properties
PbCl2
Molar mass 278.10 g/mol
Appearance white odorless solid
Density 5.85 g/cm3
Melting point 501 °C (934 °F; 774 K)
Boiling point 950 °C (1,740 °F; 1,220 K)
0.99 g/100 mL (20 °C)[1]
1.7×10−5 (20 °C)
Solubility slightly soluble in dilute HCl, ammonia;
insoluble in alcohol

Soluble in hot water as well as in presence of alkali hydroxide

Soluble in concentrated HCl (>6M)

−73.8·10−6 cm3/mol
2.199[2]
Structure[3]
Orthorhombic, oP12
Pnma (No. 62)
a = 762.040 pm, b = 453.420 pm, c = 904.520 pm
4
Thermochemistry
135.98 JK−1mol−1
-359.41 kJ/mol
Hazards[5]
GHS labelling:
GHS07: Exclamation markGHS08: Health hazardGHS09: Environmental hazard
Danger
H302, H332, H351, H360, H372, H410
P201, P261, P273, P304+P340, P308+P313, P312, P391
NFPA 704 (fire diamond)
NFPA 704 four-colored diamondHealth 3: Short exposure could cause serious temporary or residual injury. E.g. chlorine gasFlammability 0: Will not burn. E.g. waterInstability 0: Normally stable, even under fire exposure conditions, and is not reactive with water. E.g. liquid nitrogenSpecial hazards (white): no code
3
0
0
Lethal dose or concentration (LD, LC):
140 mg/kg (guinea pig, oral)[4]
Related compounds
Other anions
Lead(II) fluoride
Lead(II) bromide
Lead(II) iodide
Other cations
Lead(IV) chloride
Tin(II) chloride
Germanium(II) chloride
Related compounds
Thallium(I) chloride
Bismuth chloride
Supplementary data page
Lead(II) chloride (data page)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Lead(II) chloride (PbCl2) is an inorganic compound which is a white solid under ambient conditions. It is poorly soluble in water. Lead(II) chloride is one of the most important lead-based reagents. It also occurs naturally in the form of the mineral cotunnite.

  1. ^ NIST-data review 1980 Archived 2014-02-11 at the Wayback Machine
  2. ^ Pradyot Patnaik. Handbook of Inorganic Chemicals. McGraw-Hill, 2002, ISBN 0-07-049439-8
  3. ^ Sass, Ronald L.; Brackett, E. B.; Brackett, T. E. (1963). "THE CRYSTAL STRUCTURE OF LEAD CHLORIDE". The Journal of Physical Chemistry. 67 (12). American Chemical Society (ACS): 2863–2864. doi:10.1021/j100806a517. ISSN 0022-3654.
  4. ^ "Lead compounds (as Pb)". Immediately Dangerous to Life or Health Concentrations (IDLH). National Institute for Occupational Safety and Health (NIOSH).
  5. ^ "Classifications - CL Inventory". echa.europa.eu.