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
CAS Number	7758-95-4 ;
3D model (JSmol)	Interactive image;
ChEBI	CHEBI:88212 ;
ChemSpider	22867 ;
ECHA InfoCard	100.028.950
EC Number	231-845-5;
PubChem CID	166945;
UNII	4IL61GN3YI ;
CompTox Dashboard (EPA)	DTXSID1041059 ;
	InChI InChI=1S/2ClH.Pb/h2*1H;/q;;+2/p-2 Key: HWSZZLVAJGOAAY-UHFFFAOYSA-L ;
	SMILES Cl[Pb]Cl;
Properties
Chemical formula	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)
Solubility in water	0.99 g/100 mL (20 °C)
Solubility product (Ksp)	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)
Magnetic susceptibility (χ)	−73.8·10−6 cm3/mol
Refractive index (nD)	2.199
Structure
Crystal structure	Orthorhombic, oP12
Space group	Pnma (No. 62)
Lattice constant	a = 762.040 pm, b = 453.420 pm, c = 904.520 pm
Formula units (Z)	4
Thermochemistry
Std molar; entropy (S⦵298)	135.98 J K−1 mol−1
Std enthalpy of; formation (ΔfH⦵298)	-359.41 kJ/mol
Hazards
	GHS labelling:
Pictograms
Signal word	Danger
Hazard statements	H302, H332, H351, H360, H372, H410
Precautionary statements	P201, P261, P273, P304+P340, P308+P313, P312, P391
NFPA 704 (fire diamond)	3 0 0
	Lethal dose or concentration (LD, LC):
LDLo (lowest published)	140 mg/kg (guinea pig, oral)
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). verify (what is ?) Infobox references

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.

^ NIST-data review 1980 Archived 2014-02-11 at the Wayback Machine
^ Pradyot Patnaik. Handbook of Inorganic Chemicals. McGraw-Hill, 2002, ISBN 0-07-049439-8
^ 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.
^ "Lead compounds (as Pb)". Immediately Dangerous to Life or Health Concentrations (IDLH). National Institute for Occupational Safety and Health (NIOSH).
^ "Classifications - CL Inventory". echa.europa.eu.

[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.

[IDLH-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.

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[2]

[3]

[5]

[4]

Names

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.
IUPAC names Lead(II) chloride Lead dichloride
Other names Plumbous chloride Cotunnite Dichloroplumbylene
Identifiers
CAS Number	7758-95-4^Y
3D model (JSmol)	Interactive image
ChEBI	CHEBI:88212^N
ChemSpider	22867^Y
ECHA InfoCard	100.028.950
EC Number	231-845-5
PubChem CID	166945
UNII	4IL61GN3YI^N
CompTox Dashboard (EPA)	DTXSID1041059
InChI InChI=1S/2ClH.Pb/h2*1H;/q;;+2/p-2^Y Key: HWSZZLVAJGOAAY-UHFFFAOYSA-L^Y
SMILES Cl[Pb]Cl
Properties
Chemical formula	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)
Solubility in water	0.99 g/100 mL (20 °C)^[1]
Solubility product (K_sp)	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)
Magnetic susceptibility (χ)	−73.8·10⁻⁶ cm³/mol
Refractive index (n_D)	2.199^[2]
Structure^[3]
Crystal structure	Orthorhombic, oP12
Space group	Pnma (No. 62)
Lattice constant	a = 762.040 pm, b = 453.420 pm, c = 904.520 pm
Formula units (Z)	4
Thermochemistry
Std molar entropy (S^⦵₂₉₈)	135.98 J K⁻¹ mol⁻¹
Std enthalpy of formation (Δ_fH^⦵₂₉₈)	-359.41 kJ/mol
Hazards^[5]
GHS labelling:
Pictograms
Signal word	Danger
Hazard statements	H302, H332, H351, H360, H372, H410
Precautionary statements	P201, P261, P273, P304+P340, P308+P313, P312, P391
NFPA 704 (fire diamond)	3 0 0
Lethal dose or concentration (LD, LC):
LD_Lo (lowest published)	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). N verify (what is ^YN ?) Infobox references