| Gallium(III) hydroxide | |
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Other names
Gallium trihydroxide |
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| Identifiers | |
| CAS number | 12023-99-3 |
| PubChem | 10154045 |
| ChemSpider | 8329553 |
| Jmol-3D images | Image 1 |
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| Properties | |
| Molecular formula | Ga(OH)3 |
| Molar mass | 120.7437 g/mol |
| (verify) (what is: /?) Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) |
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| Infobox references | |
Gallium hydroxide, Ga(OH)3, is the normal mineral form of gallium in the Earth's crust.
Gallium hydroxide is very rarely found as a discrete mineral called söhngeite. More commonly, gallium replaces aluminium in ores such as bauxite. Rich sources may contain almost 1% Ga replacing Al, but a more typical value is a hundred times less.
Gallium hydroxide is amphoteric. In strongly acidic conditions, the gallium ion, Ga3+ is formed. In strongly basic conditions, Ga(OH)4− is formed. Salts of Ga(OH)4− are sometimes called gallates.
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