Yttrium(III) hydroxide is an inorganic compound and an alkali with the chemical formula Y(OH)3.

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

  1. ^ 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
  2. ^ a b Perry, Dale L. (2011). Handbook of Inorganic Compounds. CRC Press. pp. 460–461. ISBN 978-1-4398-1461-1.
Allikas: https://en.wikipedia.org/wiki/Yttrium_hydroxide
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