The name of the compound with the chemical formula Ag2O is silver oxide. Other names used to identify this compound include argentous oxide, disilver oxide, silver monoxide, silver rust and silver(I) oxide.
Silver oxide has a molar mass of 231.7 grams/mol and appears as a fine powder whose color may range from dark brown to black. Silver oxide is soluble in some alkaline compounds, slightly soluble in water and insoluble in alcohol. To prepare silver oxide, aqueous solutions of silver nitrate and an alkali hydroxide are needed.
Silver oxide has applications in organic chemistry, being involved in the process of oxidizing aldehydes to carboxylic acids. It is also used in silver-oxide batteries.