Phosphorus pentoxide (phosphorus(V) oxide, phosphoric anhydride), P2O5
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Phosphorus trioxide (phosphorus(III) oxide, phosphorous anhydride), P2O3
Zinc oxide | Calcium oxide | Nitrous oxide | Tin oxide | nitrogen oxide | Titanium oxide | Magnesium oxide | ''The Alchemist Discovering Phosphorus | Sulfur oxide | Silver-oxide battery | Silicon oxide | Ruthenium oxide | poly(1,4-phenylene oxide) | Phosphorus trioxide | Phosphorus pentoxide | Phosphorus deficiency | Nitrous oxide engine | Nitrogen oxide | magnesium oxide | Iron oxide | Exhaled nitric oxide | Cobalt oxide | calcium oxide |