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Zirconium dioxide information


Zirconium dioxide
Names
IUPAC names
Zirconium dioxide
Zirconium(IV) oxide
Other names
Zirconia
Baddeleyite
Identifiers
CAS Number
  • 1314-23-4 checkY
3D model (JSmol)
  • Interactive image
ChemSpider
  • 56183
ECHA InfoCard 100.013.844 Edit this at Wikidata
EC Number
  • 215-227-2
PubChem CID
  • 62395
UNII
  • S38N85C5G0 checkY
CompTox Dashboard (EPA)
  • DTXSID1042520 Edit this at Wikidata
InChI
  • InChI=1S/2O.Zr
    Key: MCMNRKCIXSYSNV-UHFFFAOYSA-N
SMILES
  • O=[Zr]=O
Properties
Chemical formula
ZrO
2
Molar mass 123.218 g/mol
Appearance white powder
Density 5.68 g/cm3
Melting point 2,715 °C (4,919 °F; 2,988 K)
Boiling point 4,300 °C (7,770 °F; 4,570 K)
Solubility in water
negligible
Solubility soluble in HF, and hot H2SO4
Refractive index (nD)
2.13
Thermochemistry
Std molar
entropy (S298)
50.3 JK−1mol−1
Std enthalpy of
formation fH298)
–1080 kJ/mol
Hazards
GHS labelling:
Pictograms
GHS07: Exclamation mark
Signal word
Warning
Hazard statements
H315, H319, H335
Precautionary statements
P261, P264, P271, P280, P302+P352, P304+P340, P305+P351+P338, P312, P321, P332+P313, P337+P313, P362, P403+P233, P405, P501
Flash point Non-flammable
Lethal dose or concentration (LD, LC):
LD50 (median dose)
> 8.8 g/kg (oral, rat)
Safety data sheet (SDS) MSDS
Related compounds
Other anions
Zirconium disulfide
Other cations
Titanium dioxide
Hafnium dioxide
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
checkY verify (what is checkY☒N ?)
Infobox references

Zirconium dioxide (ZrO
2
), sometimes known as zirconia (not to be confused with zircon), is a white crystalline oxide of zirconium. Its most naturally occurring form, with a monoclinic crystalline structure, is the mineral baddeleyite. A dopant stabilized cubic structured zirconia, cubic zirconia, is synthesized in various colours for use as a gemstone and a diamond simulant.[1]

  1. ^ Wang, S. F.; Zhang, J.; Luo, D. W.; Gu, F.; Tang, D. Y.; Dong, Z. L.; Tan, G. E. B.; Que, W. X.; Zhang, T. S.; Li, S.; Kong, L. B. (2013-05-01). "Transparent ceramics: Processing, materials and applications". Progress in Solid State Chemistry. 41 (1): 20–54. doi:10.1016/j.progsolidstchem.2012.12.002. ISSN 0079-6786.

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