Lead(II) oxide

Lead(II) oxide
Names
	IUPAC name Lead(II) oxide
	Other names Lead monoxide; Litharge; Massicot; Plumbous oxide
Identifiers
CAS Number	1317-36-8 ;
3D model (JSmol)	Interactive image;
ChEBI	CHEBI:81045;
ChemSpider	140169;
ECHA InfoCard	100.013.880
EC Number	215-267-0;
KEGG	C17379;
PubChem CID	14827;
RTECS number	OG1750000;
UNII	4IN6FN8492 ;
UN number	3288 2291 3077
CompTox Dashboard (EPA)	DTXSID601018731 DTXSID0029638, DTXSID601018731 ;
	InChI InChI=1S/O.Pb Key: YEXPOXQUZXUXJW-UHFFFAOYSA-N;
	SMILES O=[Pb];
Properties
Chemical formula	PbO
Molar mass	223.20 g/mol
Appearance	red or yellow powder
Density	9.53 g/cm3
Melting point	888 °C (1,630 °F; 1,161 K)
Boiling point	1,477 °C (2,691 °F; 1,750 K)
Solubility in water	α-PbO: 0.0504 g/L (25 °C); β-PbO: 0.1065 g/L (25 °C)
Solubility	insoluble
Magnetic susceptibility (χ)	4.20×10−5 cm3/mol
Structure
Crystal structure	Tetragonal, tP4
Space group	P4/nmm, No. 129
Hazards
	GHS labelling:
Pictograms
Signal word	Danger
Hazard statements	H302, H332, H351, H360Df, H362, H373, H410
Precautionary statements	P201, P202, P260, P261, P263, P264, P270, P271, P273, P281, P301+P312, P304+P312, P304+P340, P308+P313, P312, P314, P330, P391, P405, P501
NFPA 704 (fire diamond)	3 0 0
Flash point	Non-flammable
	Lethal dose or concentration (LD, LC):
LDLo (lowest published)	1400 mg/kg (dog, oral)
Safety data sheet (SDS)	ICSC 0288
Related compounds
Other anions	Lead(II) sulfide; Lead selenide; Lead telluride
Other cations	Germanium monoxide; Tin(II) oxide
Related	Lead(II,IV) oxide; Lead dioxide
Related compounds	Thallium(III) oxide; Bismuth(III) oxide
	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) oxide, also called lead monoxide, is the inorganic compound with the molecular formula Pb O. It occurs in two polymorphs: litharge having a tetragonal crystal structure, and massicot having an orthorhombic crystal structure. Modern applications for PbO are mostly in lead-based industrial glass and industrial ceramics, including computer components.

^ Dorothy Greninger; Valerie Kollonitsch; Charles Howard Kline (1977). Lead Chemicals. International Lead Zinc Research Organization. p. 52.
^ "Lead compounds (as Pb)". Immediately Dangerous to Life or Health Concentrations (IDLH). National Institute for Occupational Safety and Health (NIOSH).

[Greninger1977-1] Dorothy Greninger; Valerie Kollonitsch; Charles Howard Kline (1977). Lead Chemicals. International Lead Zinc Research Organization. p. 52.

[IDLH-2] "Lead compounds (as Pb)". Immediately Dangerous to Life or Health Concentrations (IDLH). National Institute for Occupational Safety and Health (NIOSH).

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