Gallium suboxide
| Names | |
|---|---|
| Other names
gallium suboxide
digallium monoxide |
|
| Identifiers | |
| ChemSpider | |
| Properties | |
| Ga2O | |
| Molar mass | 155.445 g/mol |
| Appearance | brown powder |
| Density | 4.77 g/cm3 |
| Melting point | >800 °C (decomposes) |
| -34·10−6 cm3/mol | |
| Thermochemistry | |
|
Std enthalpy of
formation (ΔfH |
−356.2 kJ/mol |
| Hazards | |
|
EU classification (DSD) (outdated)
|
not listed |
|
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
|
|
| Infobox references | |
Gallium(I) oxide or gallium suboxide is an inorganic compound with the formula Ga2O.
Gallium(I) oxide can be produced by reacting gallium(III) oxide with heated gallium in vacuum:
It can also be obtained by reacting gallium with carbon dioxide in vacuum at 850 °C.
Gallium(I) oxide is a by-product in the production of gallium arsenide wafers:
Gallium(I) oxide is a brown-black diamagnetic 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, inter gas, air).
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