Caesium oxide

Caesium oxide (IUPAC name), or cesium oxide, describes inorganic compounds composed of caesium and oxygen. Several binary (containing only Cs and O) oxides of caesium are known.{{citation | last = Simon | first = A. | title = Group 1 and 2 Suboxides and Subnitrides — Metals with Atomic Size Holes and Tunnels | journal = Coord. Chem. Rev. | year = 1997 | volume = 163 | pages = 253–270 | doi = 10.1016/S0010-8545(97)00013-1}}.{{cite book|title=Encyclopedia Of Inorganic Chemistry Vol 2|page=723|url=https://archive.org/details/EncyclopediaOfInorganicChemistryVol2/page/n181/mode/2up|author=Sananda Chatterjee|date=2012|isbn=978-81-8356-874-6|publisher=Discovery publishing House Pvt. Ltd.}}

Caesium oxide may refer to:

• Caesium suboxides ({{chem2|Cs7O, Cs4O, and Cs11O3}})
• Caesium monoxide ({{chem2|Cs2O}}, the most common oxide)
• Caesium peroxide ({{chem2|Cs2O2}})
• Caesium sesquioxide ({{chem2|Cs2O3}})
• Caesium superoxide ({{chem2|CsO2}})
• Caesium ozonide ({{chem2|CsO3}})