Gallium(III) sulfate
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Gallium(III) sulfate refers to the chemical compound, a salt, with the formula Ga2(SO4)3, or its hydrates Ga2(SO4)3·xH2O. Gallium metal dissolves in sulfuric acid to form solutions containing [Ga(OH2)6]3+ and SO42− ions. The octadecahydrate Ga2(SO4)3·18H2O crystallises from these solutions at room temperature. This hydrate loses water in stages when heated, forming the anhydrate Ga2(SO4)3 above 150 °C[3] and completely above 310 °C.[1] Anhydrous Ga2(SO4)3 is isostructural with iron(III) sulfate, crystallizing in the rhombohedral space group R3.[4]
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Ga2(SO4)3 | |
Molar mass | 445.7 g/mol |
Appearance | White solid[1] |
Density | 3.86 g/cm3[2] |
Melting point | 680 °C (1,256 °F; 953 K)[1] (decomposes) |
Slightly soluble[2] | |
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H315, H319, H335 | |
P302+P352, P305+P351+P338 | |
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Other cations |
Aluminium sulfate, Indium(III) sulfate, |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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