Yttrium hydroxide
Yttrium(III) hydroxide is an inorganic compound and an alkali with the chemical formula Y(OH)3.
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| ChemSpider | |
| ECHA InfoCard | 100.036.821  |
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| Properties | |
| Y(OH)3 | |
| Appearance | white solid |
| Related compounds | |
Other anions |
yttrium oxide |
Other cations |
scandium(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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Production
Yttrium(III) hydroxide can be produced by reacting yttrium(III) nitrate and sodium hydroxide in aqueous solution:[1]
- Y(NO3)3 + 3 NaOH → Y(OH)3↓ + 3 NaNO3
This gives yttrium(III) hydroxide as a white gelatinous precipitate, which can be dried to a white powder.[2]
Chemical properties
Yttrium(III) hydroxide is an alkali, so it can react with acid:
- Y(OH)3 + 3 HNO3 → Y(NO3)3 + 3 H2O
- 2 Y(OH)3 + 3 H2SO4 → Y2(SO4)3 + 3 H2O
The compound absorbs atmospheric carbon dioxide.[2]
When heated, yttrium(III) hydroxide will decompose:
- 2 Y(OH)3 → Y2O3 + 3 H2O↑
References
- 田俐，陈稳纯，陈琳 等. 水热法合成氢氧化钇纳米管. 无机材料学报. 2009. 24(2): 335-339
- Perry, Dale L. (2011). Handbook of Inorganic Compounds. CRC Press. pp. 460–461. ISBN 978-1-4398-1461-1.
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