Lead dioxide

Lead dioxide

Sample of lead dioxide
Sample of lead dioxide
Names
IUPAC name Lead(IV) oxide
Other names Plumbic oxide Plattnerite
Identifiers
CAS Number	1309-60-0 Y
3D model (JSmol)	Interactive image
ChemSpider	14109 11421764
ECHA InfoCard	100.013.795
EC Number	215-174-5
PubChem CID	14793
RTECS number	OGO700000
UNII	7JJD3ICL6A Y
UN number	1872
CompTox Dashboard (EPA)	DTXSID5025497
InChI InChI=1S/2O.Pb Key: YADSGOSSYOOKMP-UHFFFAOYSA-N
SMILES O=[Pb]=O
Properties
Chemical formula	PbO2
Molar mass	239.2 g·mol−1
Appearance	dark-brown, black powder
Density	9.38 g/cm3
Melting point	290 °C (554 °F; 563 K) decomposes
Solubility in water	insoluble
Solubility	soluble in acetic acid insoluble in alcohol
Refractive index (nD)	2.3
Structure
Crystal structure	hexagonal
Hazards
GHS labelling:
Pictograms
Signal word	Danger
Hazard statements	H272, H302, H332, H360, H372, H373, H410
Precautionary statements	P201, P202, P210, P220, P221, P260, 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)	4 0 3 OX
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(V) 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 YN ?) Infobox references

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. It is a dark-brown or black solid which is insoluble in water and slightly soluble in concentrated nitric and sulfuric acids. It exists in two crystalline forms. It has several important applications in electrochemistry, in particular as the positive plate of lead acid batteries and as a relatively inexpensive anode in electrolysis reactions.