Lutetium(III) hydroxide

Lutetium(III) hydroxide is an inorganic compound with the chemical formula Lu(OH)₃.

Lutetium(III) hydroxide

Identifiers
CAS Number	16469-21-9 Y
3D model (JSmol)	Interactive image
ChemSpider	77051 Y
ECHA InfoCard	100.036.820
EC Number	240-519-1
PubChem CID	85437
CompTox Dashboard (EPA)	DTXSID90936980
InChI InChI=1S/Lu.3H2O/h;3*1H2/q+3;;;/p-3 Key: QVVDHJQBGNVGEB-UHFFFAOYSA-K
SMILES [Lu+3].[OH-].[OH-].[OH-]
Properties
Chemical formula	Lu(OH)3
Molar mass	225.991
Appearance	white solid[1]
Related compounds
Other anions	lutetium oxide
Other cations	Scandium(III) hydroxide Yttrium(III) hydroxide
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Production

Reacting lutetium chloride and alkalis will first produce Lu(OH)₂Cl, then it will become Lu(OH)_2.5Cl_0.5. Finally, the reaction will produce Lu(OH)₃.^[2]

LuCl₃+2 NaOH→Lu(OH)₂Cl+2 NaCl

Lu(OH)₂Cl+0.5 NaOH→Lu(OH)_2.5Cl_0.5+0.5 NaCl

Lu(OH)_2.5Cl_0.5+0.5 NaOH→Lu(OH)₃+0.5 NaCl

Chemical properties

Lutetium(III) hydroxide can react with acid and form lutetium(III) salts：

Lu(OH)₃ + 3 H⁺ → Lu³⁺ + 3 H₂O

While heating lutetium(III) hydroxide, it will produce LuO(OH), continued heating could produce Lu₂O₃.^[1]

References

1. Yi, Xianwu; et al. Series of Inorganic Chemistry. Vol 7. Scandium, Rare Earth Elements. Science Press. pp 168-171. (2) Hydroxides.
2. Aksel'rud, N. V.; Akhrameeva, T. I. Basic chlorides and hydroxide of lutetium. Zhurnal Neorganicheskoi Khimii, 1962. 7. pp 1998-2001. ISSN 0044-457X.