Lead(II) oxide

Lead(II) oxide
Names
IUPAC name
Lead(II) oxide
Other names
Lead monoxide
Litharge
Massicot
Plumbous oxide
Galena
Identifiers
3D model (JSmol)
ChEBI
ChemSpider
ECHA InfoCard 100.013.880 Edit this at Wikidata
EC Number
  • 215-267-0
KEGG
RTECS number
  • OG1750000
UNII
UN number 3288 2291 3077
  • InChI=1S/O.Pb
    Key: YEXPOXQUZXUXJW-UHFFFAOYSA-N
  • O=[Pb]
Properties
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)
α-PbO: 0.0504 g/L (25 °C)
β-PbO: 0.1065 g/L (25 °C)[1]
Solubility insoluble in dilute alkalis, alcohol
soluble in concentrated alkalis
soluble in HCl, ammonium chloride
4.20×10−5 cm3/mol
Structure
Tetragonal, tP4
P4/nmm, No. 129
Hazards
GHS labelling:
GHS07: Exclamation markGHS08: Health hazardGHS09: Environmental hazard
Danger
H302, H332, H351, H360Df, H362, H373, H410
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)
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
Flash point Non-flammable
Lethal dose or concentration (LD, LC):
1400 mg/kg (dog, oral)[2]
Safety data sheet (SDS) ICSC 0288
Related compounds
Other anions
 Lead(II) sulfide
Lead selenide
Lead telluride
Other cations
 Carbon monoxide
Silicon monoxide
Germanium monoxide
Tin(II) oxide
Related lead oxides
 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).
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Lead(II) oxide, also called lead monoxide, is the inorganic compound with the molecular formula PbO. PbO 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. It is an amphoteric oxide.[3]

  1. ^ Dorothy Greninger; Valerie Kollonitsch; Charles Howard Kline (1977). Lead Chemicals. International Lead Zinc Research Organization. p. 52.
  2. ^ "Lead compounds (as Pb)". Immediately Dangerous to Life or Health Concentrations (IDLH). National Institute for Occupational Safety and Health (NIOSH).
  3. ^ Cite error: The named reference Ullmann was invoked but never defined (see the help page).