Lead dioxide

Lead dioxide
Sample of lead dioxide
Sample of lead dioxide
Names
IUPAC name
Lead(IV) oxide
Other names
Plumbic oxide
Plattnerite
Identifiers
ChemSpider
ECHA InfoCard 100.013.795 Edit this at Wikidata
EC Number
  • 215-174-5
RTECS number
  • OGO700000
UNII
UN number 1872
Properties
PbO2
Molar mass 239.1988 g/mol
Appearance dark-brown, black powder
Density 9.38 g/cm3
Melting point 290 °C (554 °F; 563 K) decomposes
insoluble
Solubility soluble in acetic acid
insoluble in alcohol
2.3
Structure
hexagonal
Hazards
GHS labelling:
GHS03: OxidizingGHS07: Exclamation markGHS08: Health hazardGHS09: Environmental hazard
Danger
H272, H302, H332, H360, H372, H373, H410
P201, P202, P210, P220, P221, P260, P261, P264, P270, P271, P273, P280, P281, P301+P312, P304+P312, P304+P340, P308+P313, P312, P314, P330, P370+P378, P391, P405, P501
NFPA 704 (fire diamond)
Flash point Non-flammable
Safety data sheet (SDS) External MSDS
Related compounds
Other cations
Carbon dioxide
Silicon dioxide
Germanium dioxide
Tin dioxide
Related lead oxides
Lead(II) oxide
Lead(II,IV) oxide
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).
☒N verify (what is checkY☒N ?)

Lead(IV) oxide, commonly known as lead dioxide, is an inorganic compound with the chemical formula PbO2. It is an oxide where lead is in an oxidation state of +4.[1] It is a dark-brown solid which is insoluble in water.[2] It exists in two crystalline forms. It has several important applications in electrochemistry, in particular as the positive plate of lead acid batteries.

  1. ^ Meek, Terry L.; Garner, Leah D. (2005-02-01). "Electronegativity and the Bond Triangle". Journal of Chemical Education. 82 (2): 325. Bibcode:2005JChEd..82..325M. doi:10.1021/ed082p325. ISSN 0021-9584.
  2. ^ Eagleson, Mary (1994). Concise Encyclopedia of Chemistry. Walter de Gruyter. p. 590. ISBN 978-3-11-011451-5.