Gallium(I) oxide

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Gallium(I) oxide
Names
Other names
gallium suboxide
digallium monoxide
Identifiers
3D model (
JSmol
)
ChemSpider
UNII
  • InChI=1S/2Ga.O
    Key: KXACIVYKDCQNQA-UHFFFAOYSA-N
  • O([Ga])[Ga]
Properties
Ga2O
Molar mass 155.445 g/mol[1]
Appearance brown powder[1]
Density 4.77 g/cm3[1]
Melting point >800 °C[1] (decomposes)
-34·10−6 cm3/mol[2]
Thermochemistry
Std enthalpy of
formation
(ΔfH⦵298)
 −356.2 kJ/mol[3]
Related compounds
Other cations
 Boron monoxide
Aluminium(I) oxide
Indium(I) oxide
Thallium(I) oxide
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Gallium(I) oxide, digallium monoxide or gallium suboxide is an inorganic compound with the formula Ga2O.

Production

Gallium(I) oxide can be produced by reacting gallium(III) oxide with heated gallium in vacuum:[4]

It can also be obtained by reacting gallium with carbon dioxide in vacuum at 850 °C.[5]

Gallium(I) oxide is a by-product in the production of gallium arsenide wafers:[6][7]

Properties

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, inert gas, air).[4]

References

  1. ^
    ISBN 1-4398-5511-0
    .
  2. ISBN 1-4398-5511-0
    .
  3. ISBN 1-4398-5511-0
    .
  4. ^
    ISBN 3-432-02328-6
    .
  5. ISBN 008057854-3.{{cite book}}: CS1 maint: multiple names: authors list (link
    )
  6. ISBN 354040546-1.{{cite book}}: CS1 maint: multiple names: authors list (link
    )
  7. ISBN 978-156677574-8
    .
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