Scandium(III) hydroxide
Chemical compound
From Wikipedia, the free encyclopedia
Scandium(III) hydroxide is an inorganic compound with the chemical formula Sc(OH)3, the trivalent hydroxide of scandium. It is an amphoteric compound.[2] It is slightly soluble in water, and its saturated solution (pH = 7.85) contains Sc(OH)3 and a small amount of Sc(OH)+2. The solubility of scandium(III) hydroxide in water is 0.0279 mol/L. It will convert to ScO(OH) after aging, greatly reducing the solubility (0.0008 mol/L).[3] Scandium(III) hydroxide can be produced by reacting scandium salts and alkali hydroxides.[4] In the reaction, different starting ingredients can generate different intermediates such as Sc(OH)1.75Cl1.25, Sc(OH)2NO3 and Sc(OH)2.32(SO4)0.34.[5]
| Names | |
|---|---|
| IUPAC name
Scandium(III) hydroxide | |
| Identifiers | |
3D model (JSmol) |
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| ChemSpider | |
| ECHA InfoCard | 100.037.855 |
| EC Number |
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PubChem CID |
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CompTox Dashboard (EPA) |
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| Properties | |
| Sc(OH)3 | |
| Molar mass | 95.977 g·mol−1 |
| Density | 2.65 g·cm−3 |
| 0.268 g/(100 mL) | |
Solubility product (Ksp) |
2.22×10−31[1] |
| Related compounds | |
Other anions |
Scandium chloride Scandium fluoride Scandium nitrate |
Other cations |
Yttrium(III) hydroxide Lutetium(III) hydroxide |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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