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Lutetium oxide

Properties, data and information sources.

 

Contents

Lutetium oxide is an inorganic chemical compound belonging to the group of oxides.

 

Names and Identifiers

Name
Lutetium oxide
Formula
Lu2O3
Molar mass
397.93 (g/mol)
CAS registry number
12032-20-1
EC number EINECS
234-764-3
InChI Key
UGBIHFMRUDAMBY-UHFFFAOYSA-N

Systematic name
Dilutetium(3+) trioxidandiide

Other names, synonyms
Lutetium(III) oxide; Lutetium sesquioxide; Lutecia; Cassiopeium oxide

 

Chemical formulas

Molecular formula and structural formula of Lutetium oxide:

 

Lu2O3

Mr = 397.9304 g/mol

Dilutetium(3+) trioxidandiide
SMILES: [O-2].[O-2].[O-2].[Lu+3].[Lu+3]

 

Data and Properties

Pure lutetium oxide exists as a white solid, usually in powder form.

solubility:
+ Soluble in acids, forming the corresponding salts.
- Insoluble in water.
melting point
2427 °C
boiling point
3980 °C
density
9.41 g cm-3 at 20 °C
standard enthalpy of formation
448.9 kJ/mol at 25 °C
Gibbs free energy
427.5 kJ/mol
band gap
5.5 eV
crystal structure:
Cubic crystals, space group Ia3 with lattice constant a = 1039 pm and Z = 16.

 

Percentage and isotopic composition:

Mass-related elemental composition and isotope proportions of the compound Lutetium oxide - Lu2O3 - calculated based on molecular mass.

Symbol
Element ENumber x
of atoms ExData of the element
and isotopes *Percentages
of isotopesPercentage of
Ex in formula massLu
Lutetium2 Ar = 174.96669 u
ΣAr = 349.93338 u
175Lu: 174.94078 u [97,401 %]
176Lu: 175.94269 u [2,599 %] 
175Lu: 85.65282 %
176Lu: 2.28552 %
87.9383 %O
Oxygen3 Ar = 15.999 u
ΣAr = 47.997 u
16O: 15.99491 u [99,757 %]
17O: 16.99913 u [0,03835 %]
18O: 17.99916 u [0,205 %] 
16O: 12.03235 %
17O: 0.00463 %
18O: 0.02473 %
12.0617 %

*) The third column lists the atomic masses or isotope masses of the elements involved and - in square brackets - the natural isotope composition.

 

More calculated data

The molar mass is M = 397.93038 grams per mole.

The amount of substance in one kilogram of the substance is n = 2.513 mol.

The amount of substance in one gram of the substance is n = 0.003 mol.

Monoisotopic mass: 397.866303857 Da - related to 175Lu216O3.

 

External Sources

PubChem:ID 159406ChemSpider:ID 3528567EPA CompTox Chemicals Dashboard:DTXSID60894260Other CAS RN:1350899-15-8; 1400873-08-6; 1581258-67-4 (also used, outdated or deleted registration numbers)

 

Manufacturers and Sources of Supply

The table below lists producers and suppliers of Lutetium oxide as a commercial chemical for laboratories, research, industry and production with the corresponding contact details.

 

Literature Sources

[0] - Specialist and research articles in scientific journals via PubMed: Lutetium_oxide.

 

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isotopes

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