Xenon trioxide

Xenon trioxide
Structural formula, showing lone pair
Space-filling model
Names
IUPAC names
Xenon trioxide
Xenon(VI) oxide
Other names
Xenic anhydride
Identifiers
3D model (JSmol)
ChemSpider
UNII
  • InChI=1S/O3Xe/c1-4(2)3 checkY
    Key: ZWAWYSBJNBVQHP-UHFFFAOYSA-N checkY
  • InChI=1/O3Xe/c1-4(2)3
    Key: ZWAWYSBJNBVQHP-UHFFFAOYAR
  • O=Xe(=O)=O
Properties
XeO3
Molar mass 179.288 g/mol
Appearance colourless crystalline solid
Density 4.55 g/cm3, solid
Melting point 25 °C (77 °F; 298 K) Violent decomposition
Soluble (with reaction)
Structure
trigonal pyramidal (C3v)
Thermochemistry
402 kJ·mol−1[1]
Hazards
NFPA 704 (fire diamond)
NFPA 704 four-colored diamondHealth 4: Very short exposure could cause death or major residual injury. E.g. VX gasFlammability 0: Will not burn. E.g. waterInstability 4: Readily capable of detonation or explosive decomposition at normal temperatures and pressures. E.g. nitroglycerinSpecial hazard OX: Oxidizer. E.g. potassium perchlorate
4
0
4
OX
Related compounds
Related compounds
 Xenon tetroxide
Xenic acid
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 ?)

Xenon trioxide is an unstable compound of xenon in its +6 oxidation state. It is a very powerful oxidizing agent, and liberates oxygen from water slowly, accelerated by exposure to sunlight. It is dangerously explosive upon contact with organic materials. When it detonates, it releases xenon and oxygen gas.

  1. ^ Zumdahl, Steven S. (2009). Chemical Principles 6th Ed. Houghton Mifflin Company. p. A23. ISBN 978-0-618-94690-7.