Gallium(I) oxide, digallium monoxide or gallium suboxide is an

inorganic compound An inorganic compound is typically a chemical compound that lacks carbon–hydrogen bonds⁠that is, a compound that is not an organic compound. The study of inorganic compounds is a subfield of chemistry known as ''inorganic chemistry''. Inorgan ...

with the formula Ga₂ O.

Production

Gallium(I) oxide can be produced by reacting

gallium(III) oxide Gallium(III) oxide is an inorganic compound and Wide-bandgap semiconductor, ultra-wide-bandgap semiconductor with the formula Gallium, Ga2trioxide, O3. It is actively studied for applications in power electronics, phosphors, and Gas detector, gas ...

with heated

gallium Gallium is a chemical element; it has Chemical symbol, symbol Ga and atomic number 31. Discovered by the French chemist Paul-Émile Lecoq de Boisbaudran in 1875, elemental gallium is a soft, silvery metal at standard temperature and pressure. ...

in vacuum: :

\mathrm

It can also be obtained by reacting gallium with

carbon dioxide Carbon dioxide is a chemical compound with the chemical formula . It is made up of molecules that each have one carbon atom covalent bond, covalently double bonded to two oxygen atoms. It is found in a gas state at room temperature and at norma ...

in vacuum at 850 °C. :

\mathrm

Gallium(I) oxide is a by-product in the production of

gallium arsenide Gallium arsenide (GaAs) is a III-V direct band gap semiconductor with a Zincblende (crystal structure), zinc blende crystal structure. Gallium arsenide is used in the manufacture of devices such as microwave frequency integrated circuits, monoli ...

wafers: :

\mathrm

Properties

Gallium(I) oxide is a brown-black

diamagnetic Diamagnetism is the property of materials that are repelled by a magnetic field; an applied magnetic field creates an induced magnetic field in them in the opposite direction, causing a repulsive force. In contrast, paramagnetic and ferromagn ...

solid which is resistant to further oxidation in dry air. It starts decomposing upon heating at temperatures above 500 °C, and the decomposition rate depends on the atmosphere (vacuum, inert gas, air).

References

{{DEFAULTSORT:Gallium(I) oxide Oxides Gallium compounds